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WALCOM: 12th International Conference, WALCOM 2018, Dhaka, Bangladesh, March 3-5, 2018, Proceedings (Lecture Notes in Computer Science #10755)
by M. Sohel Rahman Wing-Kin Sung Ryuhei UeharaThis book constitutes the proceedings of the 12th International Workshop on Algorithms and Computation, WALCOM 2018, held in Dhaka, Bangladesh, in March 2018.The 22 full papers presented were carefully reviewed and selected from 50 submissions. The papers cover diverse areas of algorithms and computation, such as approximation algorithms, computational geometry, combinatorial algorithms, computational biology, computational complexity, data structures, graph and network algorithms, and online algorithms.
WALCOM: 18th International Conference and Workshops on Algorithms and Computation, WALCOM 2024, Kanazawa, Japan, March 18–20, 2024, Proceedings (Lecture Notes in Computer Science #14549)
by Ryuhei Uehara Katsuhisa Yamanaka Hsu-Chun YenThis book constitutes the refereed proceedings of the 18th International Conference and Workshops on Algorithms and Computation, WALCOM 2024, held in Kanazawa, Japan, during March 18–20, 2024. The 28 full papers presented in this book, together with two extended abstracts of invited talks, were carefully reviewed and selected from 80 submissions. They cover diverse areas of algorithms and computation, that is, approximation algorithms, algorithmic graph theory and combinatorics, combinatorial algorithms, combinatorial optimization, computational biology, combinatorial reconfiguration, computational complexity, computational geometry, discrete geometry, data structures, experimental algorithm methodologies, graph algorithms, graph drawing, parallel and distributed algorithms, parameterized algorithms, parameterized complexity, network optimization, online algorithms, randomized algorithms, and string algorithms.
Walking with Christiaan Huygens: From Archimedes' Influence to Unsung Contributions in Modern Science (History of Physics)
by Tijmen Jan Moser Enders Anthony RobinsonDutch scientist Christiaan Huygens (1629-1695) left an indelible mark on the fields of mathematics, physics, astronomy, and geophysics. Despite his groundbreaking contributions, history has often overlooked his pivotal role. While two of the most famous achievements in physics are Newton’s theory of gravity and Einstein’s general theory of relativity, less well-known is that Huygens provided central elements to these theories. This book stands to correct that deficit. For example, we show how Huygens used symmetry arguments to derive conservation laws for momentum and for energy, and what Einstein later called the principle of equivalence to derive the formula for centrifugal force. In 1689, Huygens visited Newton. Together, they walked the streets of London. Newton had recently finished his masterpiece, Principia, expounding his laws of motion and the law of universal gravitation. Huygens had essentially completed his life’s work by then, building on Archimedes, Leonardo da Vinci, Galileo, Descartes, Fermat, Pascal and his own ingenuity. He had established fame as an instrument maker (telescope, pendulum clock, planetarium). He had invented the 31 tone system. He had pioneered the first principles of remote sensing. He had discovered the rings of Saturn. He had formulated the wave theory of light. What would walking with Christiaan reveal? This book gives the result in nine chapters, namely: spontaneous order, the speed of light, Huygens’ principle, the telescope, the pendulum clock, Huygens-Fresnel principle, special relativity, centrifugal force, and curvature. In addition, there is a chapter titled What Huygens could have written on diffraction, and a chapter titled Huygens and Geophysics. Mentally walking with Christiaan, browsing his collected works — a true treasure trove for puzzle enthusiasts — and rethinking his ideas creates a vivid impression of scientific life in the 17th century, an appreciation that it is remarkably similar to ours, and an understanding of Huygens' significant and lasting contributions to science.
Walter Gautschi, Volume 1
by Claude Brezinski Ahmed SamehWalter Gautschi has written extensively on topics ranging from special functions, quadrature and orthogonal polynomials to difference and differential equations, software implementations, and the history of mathematics. He is world renowned for his pioneering work in numerical analysis and constructive orthogonal polynomials, including a definitive textbook in the former, and a monograph in the latter area.<P><P> This three-volume set, Walter Gautschi: Selected Works with Commentaries, is a compilation of Gautschi’s most influential papers and includes commentaries by leading experts. The work begins with a detailed biographical section and ends with a section commemorating Walter’s prematurely deceased twin brother. This title will appeal to graduate students and researchers in numerical analysis, as well as to historians of science.<P><P> Selected Works with Commentaries, Vol. 1<P> - Numerical Conditioning<P> - Special Functions<P> - Interpolation and Approximation<P> Selected Works with Commentaries, Vol. 2<P> - Orthogonal Polynomials on the Real Line<P> - Orthogonal Polynomials on the Semicircle<P> - Chebyshev Quadrature<P> - Kronrod and Other Quadratures<P> - Gauss-type Quadrature<P> Selected Works with Commentaries, Vol. 3<P> - Linear Difference Equations<P> - Ordinary Differential Equations<P> - Software<P> - History and Biography<P> - Miscellanea<P> - Works of Werner Gautschi<P>
Walter Gautschi, Volume 2
by Claude Brezinski Ahmed SamehWalter Gautschi has written extensively on topics ranging from special functions, quadrature and orthogonal polynomials to difference and differential equations, software implementations, and the history of mathematics. He is world renowned for his pioneering work in numerical analysis and constructive orthogonal polynomials, including a definitive textbook in the former, and a monograph in the latter area.<P><P> This three-volume set, Walter Gautschi: Selected Works with Commentaries, is a compilation of Gautschi’s most influential papers and includes commentaries by leading experts. The work begins with a detailed biographical section and ends with a section commemorating Walter’s prematurely deceased twin brother. This title will appeal to graduate students and researchers in numerical analysis, as well as to historians of science.<P><P> Selected Works with Commentaries, Vol. 1<P> - Numerical Conditioning<P> - Special Functions<P> - Interpolation and Approximation<P> Selected Works with Commentaries, Vol. 2<P> - Orthogonal Polynomials on the Real Line<P> - Orthogonal Polynomials on the Semicircle<P> - Chebyshev Quadrature<P> - Kronrod and Other Quadratures<P> - Gauss-type Quadrature<P> Selected Works with Commentaries, Vol. 3<P> - Linear Difference Equations<P> - Ordinary Differential Equations<P> - Software<P> - History and Biography<P> - Miscellanea<P> - Works of Werner Gautschi<P>
Walter Gautschi, Volume 3
by Claude Brezinski Ahmed SamehWalter Gautschi has written extensively on topics ranging from special functions, quadrature and orthogonal polynomials to difference and differential equations, software implementations, and the history of mathematics. He is world renowned for his pioneering work in numerical analysis and constructive orthogonal polynomials, including a definitive textbook in the former, and a monograph in the latter area. This three-volume set, Walter Gautschi: Selected Works with Commentaries, is a compilation of Gautschi’s most influential papers and includes commentaries by leading experts. The work begins with a detailed biographical section and ends with a section commemorating Walter’s prematurely deceased twin brother. This title will appeal to graduate students and researchers in numerical analysis, as well as to historians of science.<P><P> Selected Works with Commentaries, Vol. 1<P> - Numerical Conditioning<P> - Special Functions<P> - Interpolation and Approximation<P> Selected Works with Commentaries, Vol. 2<P> - Orthogonal Polynomials on the Real Line<P> - Orthogonal Polynomials on the Semicircle<P> - Chebyshev Quadrature<P> - Kronrod and Other Quadratures<P> - Gauss-type Quadrature<P> Selected Works with Commentaries, Vol. 3<P> - Linear Difference Equations<P> - Ordinary Differential Equations<P> - Software<P> - History and Biography<P> - Miscellanea<P> - Works of Werner Gautschi<P>
The Waltz of Reason: The Entanglement of Mathematics and Philosophy
by Karl Sigmund"A mind-bending jaunt ... that makes clear in fascinating detail how math is more than a sum of its parts" (Publishers Weekly) &“Let no one ignorant of geometry enter here,&” Plato warned would-be philosophers. Mathematician Karl Sigmund agrees. In The Waltz of Reason, he shows how mathematics and philosophy together have shaped our understanding of space, chance, logic, cooperation, voting, and the social contract. Sigmund shows how game theory is integral to moral philosophy, how statistics shaped the meaning of reason, and how the search for a logical basis for math leads to deep questions about the nature of truth itself. But this is no dry tome: Sigmund&’s wit and humor shine as brightly as his erudition.The Waltz of Reason is an engrossing history of ideas as vibrant as a ballroom full of dancers, one that empowers as it entertains, following the complex and occasionally dizzying steps of the thinkers who have molded our thought and founded our world.
Wandering Towards a Goal: How Can Mindless Mathematical Laws Give Rise To Aims And Intention? (The Frontiers Collection)
by Anthony Aguirre Brendan Foster Zeeya MeraliThis collection of prize-winning essays addresses the controversial question of how meaning and goals can emerge in a physical world governed by mathematical laws. What are the prerequisites for a system to have goals? What makes a physical process into a signal? Does eliminating the homunculus solve the problem? The three first-prize winners, Larissa Albantakis, Carlo Rovelli and Jochen Szangolies tackle exactly these challenges, while many other aspects (agency, the role of the observer, causality versus teleology, ghosts in the machine etc.) feature in the other award winning contributions. All contributions are accessible to non-specialists.These seventeen stimulating and often entertaining essays are enhanced versions of the prize-winning entries to the FQXi essay competition in 2017.The Foundational Questions Institute, FQXi, catalyzes, supports, and disseminates research on questions at the foundations of physics and cosmology, particularly new frontiers and innovative ideas integral to a deep understanding of reality, but unlikely to be supported by conventional funding sources.
War Games: A History of War on Paper
by Philipp Von Hilgers Ross BenjaminFor centuries, both mathematical and military thinkers have used game-like scenarios to test their visions of mastering a complex world through symbolic operations. By the end of World War I, mathematical and military discourse in Germany simultaneously discovered the game as a productive concept. Mathematics and military strategy converged in World War II when mathematicians designed fields of operation. In this book, Philipp von Hilgers examines the theory and practice of war games through history, from the medieval game boards, captured on parchment, to the paper map exercises of the Third Reich. Von Hilgers considers how and why war games came to exist: why mathematical and military thinkers created simulations of one of the most unpredictable human activities on earth. Von Hilgers begins with the medieval rythmomachia, or Battle of Numbers, then reconstructs the ideas about war and games in the baroque period. He investigates the role of George Leopold von Reiswitz's tactical war game in nineteenth-century Prussia and describes the artifact itself: a game board--topped table with drawers for game implements. He explains Clausewitz's emphasis on the "fog of war" and the accompanying element of incalculability, examines the contributions of such thinkers as Clausewitz, Leibniz, Wittgenstein, and von Neumann, and investigates the war games of the German military between the two World Wars. Baudrillard declared this to be the age of simulacra; war games stand contrariwise as simulations that have not been subsumed in absolute virtuality.
War, Humanitarian Crises, Population Displacement, and Fertility: A Review of Evidence
by Kenneth HillIncludes statistical data.
War in Economic Theories over Time: Assessing the True Economic, Social and Political Costs (Palgrave Studies in the History of Economic Thought)
by Renata AllioThis book offers the first systematic analysis of economic thought concerning war. It retraces debates on war from the formation of European states, the rise of Mercantilism, to Colonialism, Imperialism, the World Wars and the Cold War. Allio shows different economic perspectives from which it is possible to study war as a tool to achieve economic ends: causes, consequences, costs, funding methods, and effects on the economic status of the state and on the well-being of citizens. Examining interpretations from Smith, Hobson, Keynes, Kalecki, Stiglitz and many more, this important volume addresses the economic implications of war from the perspectives of many who bore the costs of wars in reality.
The War on Critical Race Theory: Or, The Remaking of Racism
by David Theo Goldberg“Critical Race Theory” is consuming conservative America. The mounting attacks on a once-obscure legal theory are upending public schooling, legislating censorship, driving elections, and cleaving communities. In this much-needed response, renowned scholar David Theo Goldberg cuts to the heart of the claims expressed in these attacks. He punctures the demonization of Critical Race Theory, uncovering who is orchestrating it, funding the assault, and eagerly distributing the message. The book richly illustrates the enduring nature of structural racism, even as a conservative insistence on colorblindness serves to silence the possibility of doing anything about it. Crucially, Goldberg exposes the political aims and effects of the vitriolic attacks. The upshot of CRT’s targeting, he argues, has been to unleash racisms anew and to stymie any attempt to fight them, all with the aim of protecting white minority rule.
War Stories from the Drug Survey: How Culture, Politics, and Statistics Shaped the National Survey on Drug Use and Health
by Joseph GfroererThe primary data driver behind US drug policy is the National Survey on Drug Use and Health. This insider history traces the evolution of the survey and how the survey has interacted with the political and social climate of the country, from its origins during the Vietnam War to its role in the war on drugs. <P><P>The book includes first-hand accounts that explain how the data was used and misused by political leaders, why changes were made in the survey design, and what challenges researchers faced in communicating statistical principles to policymakers and leaders. It also makes recommendations for managing survey data collection and reporting in the context of political pressures and technological advances. <P><P>Survey research students and practitioners will learn practical lessons about questionnaire design, mode effects, sampling, nonresponse, weighting, editing, imputation, statistical significance, and confidentiality. The book also includes common-language explanations of key terms and processes to help data users understand the point of view of survey statisticians.
War, Violence, and Population
by James TynerGrounded in theory and research, this book offers a spatial perspective on how and why populations are regulated and disciplined by mass violence and why these questions matter for scholars concerned about social justice. James Tyner focuses on how states and other actors use acts of brutality to manage, administer, and control space for political and economic purposes. He shows how demographic analyses of fertility, mortality, and migration cannot be complete without taking war and genocide into account. Stark, in-depth case studies provide a powerful and provocative basis for retheorizing population geography.
Was für ein Zufall!: Über Unvorhersehbarkeit, Komplexität und das Wesen der Zeit
by Bernhard WeßlingWie kommt der Zufall in unsere Welt? Und warum ist so vieles nicht vorhersehbar?Verständlich, spannend und amüsant erzählend entführt uns der Autor in die Welt der Chemie, Quantenphysik und Biologie. Die Astronomie und Philosophie streifend, werden wir Zeugen einer lohnenden Entdeckungsreise. Dabei entwickelt er auf der Basis der Naturgesetze eine vollkommen neue Sicht auf den Zufall. Hierbei spielt das allgegenwärtige Nicht-Gleichgewicht eine überaus entscheidende Rolle, weil es die komplexen Strukturen in unserer Welt erzeugt. Abschließend präsentiert er auf dieser Grundlage eine gleichermaßen einfache wie bestechende Hypothese zum Wesen der Zeit.Dieses Sachbuch gibt einen tiefen Einblick in die Faszination der Forschung, in die quälende Suche nach grundlegendem Verständnis und das Ringen um wissenschaftliche Erkenntnis.
Was geht mich die Physik an?: Physikalisch denken in Gesellschaft, Politik und Management.
by Reiner KreePolitische Themen mit wissenschaftlichem Bezug werden medial immer präsenter. In Talkshows, Zeitungen und politischen Beratungsgremien finden oft Expertinnen und Experten mit Physikausbildung Gehör. Egal, ob es um Klimawandel, Finanzmarktcrashs, Pandemiepolitik oder erneuerbare Energien geht: wir müssen den Aussagen dieser Expertinnen und Experten blind vertrauen, wenn wir selbst kein Fachwissen besitzen. In diesem Buch werden physikalische Grundlagen hinter gesellschaftlich relevanten Themen auf eine allgemeinverständliche Weise erklärt. Dabei geht es vor allem darum, die für die Physik typischen Denkweisen klar zu machen. Auf welchen Grundlagen (Mechanik, Elektrodynamik, Quantentheorie, Feldtheorien, Relativitätstheorien, Statistische Physik) beruhen eigentlich physikalische Aussagen? Wie sind diese Grundlagen entstanden? Wie erstellt man in der Physik Modelle zur Beschreibung komplexer Themen? Was ist „Wahrheit" in Wissenschaften? Wie ist das Verhältnis von Modellen zur Wirklichkeit? Beim Beantworten dieser und vieler weiterer Fragen hat der Autor darauf geachtet, nur Mathematik vorauszusetzen, die das Niveau der Mittelstufe nicht überschreitet. Der vorliegende Band richtet sich an alle, die für Entscheidungen und Urteile ein einfaches aber solides Verständnis des physikalischen Denkens suchen: sei es im Alltag, in Unternehmen oder in der Politik.
The Washington State Census Board and Its Demographic Legacy
by David A. SwansonThis book tells the story of how a group of far-sighted, academic researchers came to the aid of an overwhelmed local government. It details the history of the Washington State Census Board, which began in 1943 as part of an emergency measure during a massive wartime in-migration. The narrative also shows the demographic legacy of the Board and, ultimately, provides an unforgettable look into the creation and evolution of applied demography. Inside, readers will discover how Washington State struggled to keep up with the unexpected needs for housing, transportation, schools, and public utilities for the hundreds of thousands of migrants who came to work in industries that practically developed overnight with the mobilization for World War II. The author recounts how Professor Calvin F. Schmid, who led the Washington State Census Board, and his team developed methods of population estimation that are still in use today. In the process, the narrative reveals how population figures were gathered, compared, and projected at a time when the hand calculator was considered cutting-edge technology. The book also details how methods were refined and improved over time as well as how those involved developed new ways to obtain and, more importantly, utilize the information. With the aid of archived materials, personal interviews, and rich personal accounts, this book will inform and inspir e practicing and academic demographers as well as planners, policy-makers, historians, and interested readers.
Waste and Environmental Policy (Routledge Explorations in Environmental Economics #Vol. 15)
by Massimiliano Mazzanti Anna MontiniThis research deals with the increasingly complex issues of waste generation, waste management and waste disposal that in less developed industrialised countries present diverse but critical concerns. It takes a socio-economic and policy-oriented perspective and provides empirical evidence at EU and regional level. The EU and Italy are taken as relevant case studies given the disparities in environmental performances between less and more developed areas. The rich and various empirical evidence shows that a robust delinking between waste generation and economic growth is still not present, thus future policies should directly address the problem at the source by targeting waste generation in EU countries. Some structural factors like population density and urbanisation present themselves as relevant drivers of both waste management and landfill diversion. Nevertheless, economic and structural factors alone are not sufficient to improve waste performances. Though waste policies are to be redesigned by covering the entire area of waste management, some first signals of policy effectiveness are arising. This work will be of most interest to those students of environmental economics and environmental sciences, as well as policy makers, waste utility managers and companies in the waste management sector.
Wasted World: How Our Consumption Challenges the Planet
by Rob HengeveldAll systems produce waste as part of a cycle--bacteria, humans, combustion engines, even one as large and complex as a city. To some extent, this waste can be absorbed, processed, or recycled--though never completely. In Wasted World, Rob Hengeveld reveals how a long history of human consumption has left our world drowning in this waste. This is a compelling and urgent work that traces the related histories of population growth and resource consumption. As Hengeveld explains, human life (and population growth) depends not only on mineral resources but also on energy. People first obtained energy from food and later supplemented this with energy from water, wind, and animals as one source after another fell short of our ever-growing needs. Finally, we turned to fossil energy, which generates atmospheric waste that is the key driver of global climate change. The effects of this climate change are already leading to food shortages and social collapse in some parts of the world. Because all of these problems are interconnected, Hengeveld argues strenuously that measures to counter individual problems cannot work. Instead, we need to tackle their common cause--our staggering population growth. While many scientists agree that population growth is one of the most critical issues pressuring the environment, Hengeveld is unique in his insistence on turning our attention to the waste such growth leaves in its wake and to the increasing demands of our global society. A practical look at the sustainability of our planet from the perspective of a biologist whose expertise is in the abundances and distributions of species, Wasted World presents a fascinating picture of the whole process of using, wasting, and exhausting energy and material resources. And by elucidating the complexity of the causes of our current global state, Hengeveld offers us a way forward.
Watching Baseball Smarter
by Zack HampleWhether you’re a major league couch potato, life-long season ticket-holder, or teaching game to a beginner,Watching Baseball Smarterleaves no territory uncovered. In this smart and funny fan’s guide Hample explains the ins and outs of pitching, hitting, running, and fielding, while offering insider trivia and anecdotes that will surprise even the most informed viewers of our national pastime. What is the difference between a slider and a curveball? At which stadium did “The Wave” first make an appearance? How do some hitters use iPods to improve their skills? Which positions are neverplayed by lefties? Why do some players urinate on their hands? Combining the narrative voice and attitude of Michael Lewis with the compulsive brilliance ofSchott’s Miscellany,Watching Baseball Smarterwill increase your understanding and enjoyment of the sport–no matter what your level of expertise. Zack Hample is an obsessed fan and a regular writer for minorleaguebaseball. com. He's collected nearly 3,000 baseballs from major league games and has appeared on dozens of TV and radio shows. His first book,How to Snag Major League Baseballs,was published in 1999.
Water Availability and Management in Mexico (Water Science and Technology Library #999)
by Vijay P. Singh Amado Enrique Navarro-Frómeta Elena María Otazo-SánchezThis book presents several complex case studies related to water management and planning in the context of pollution, growing demands, and global climate change in Mexico, but which are also relevant for other countries in Latin America. These concerns are of critical importance for policymakers who are coping with multiple conflicting interests. Water availability in Mexico is polarized, with abundant rainfall and large rivers in the south, and desert-like conditions in the north. The central region, which is the most industrialized, is overpopulated. Mexico City pours millions of cubic meters of “blackwater” into the northern valley daily and receives its clean water from the south. To address these unsustainable conditions, the world's 4th biggest water treatment plant went into operation in 2018. The water infrastructure and governance must satisfy the demands of all sectors, including agricultural, urban, and economic activities. At the same time, water resources are affected by drought, and climate change puts constraints on the supply. As such, regulation and monitoring are important when it comes to adherence to agreed plans and priorities. The book is divided into four sections. 1: Water Availability discusses quantitative aspects, such as supply, methods of calculation, and fracking. 2: Water Quality highlights pollution risks and diagnosis of water resources. 3: Water Allocation examines the sectoral demands and vulnerability due to unsustainable irrigation. 4: Water Governance and Management focuses on laws, urban rules, national parks, planning, and integrated water resources management, among other topics. The chapters include illustrative case studies in Mexico, such as basins, cities, reservoirs, and aquifers, water supply demand assessment, planning, and management.
Water Histories and Spatial Archaeology
by Michael J. HarrowerThis book offers a new interpretation of the spatial-political-environmental dynamics of water and irrigation in long-term histories of arid regions. It compares ancient Southwest Arabia (3500 BC–AD 600) with the American West (2000 BC–AD 1950) in global context to illustrate similarities and differences among environmental, cultural, political, and religious dynamics of water. It combines archaeological exploration and field studies of farming in Yemen with social theory and spatial technologies, including satellite imagery, Global Positioning System (GPS), and Geographic Information Systems (GIS) mapping. In both ancient Yemen and the American West, agricultural production focused not where rain-fed agriculture was possible, but in hyper-arid areas where massive state-constructed irrigation schemes politically and ideologically validated state sovereignty. While shaped by profound differences and contingencies, ancient Yemen and the American West are mutually informative in clarifying human geographies of water that are important to understandings of America, Arabia, and contemporary conflicts between civilizations deemed East and West.
Water Quality Modelling for Rivers and Streams
by George Tsakiris Marcello BenediniThe main objective of the Water Framework Directive in the European countries is to achieve a "good status" of all the water bodies, in the integrated management of river basins. In order to assess the impact of improvement measures, water quality models are necessary. During the previous decades the progress in computer technology and computational methods has supported the development of advanced mathematical models for pollutant transport in rivers and streams. This book is intended to provide the fundamental knowledge needed for a deeper understanding of these models and the development of new ones, which will fulfil future quality requirements in water resources management. This book focuses on the fundamentals of computational techniques required in water quality modelling. Advection, dispersion and concentrated sources or sinks of contaminants lead to the formulation of the fundamental differential equation of pollutant transport. Its integration, according to appropriate initial and boundary conditions and with the knowledge of the velocity field, allows for pollutant behaviour to be assessed in the entire water body. An analytical integration is convenient only in one-dimensional approach with considerable simplification. Integration in the numerical field is useful for taking into account particular aspects of water body and pollutants. To ensure their reliability, the models require accurate calibration and validation, based on proper data, taken from direct measurements. In addition, sensitivity and uncertainty analysis are also of utmost importance. All the above items are discussed in detail in the 21 chapters of the book, which is written in a didactic form for professionals and students.
Water Waves: The Mathematical Theory With Applications (Dover Books on Physics)
by James Johnston StokerFirst published in 1957, this is a classic monograph in the area of applied mathematics. It offers a connected account of the mathematical theory of wave motion in a liquid with a free surface and subjected to gravitational and other forces, together with applications to a wide variety of concrete physical problems. A never-surpassed text, it remains of permanent value to a wide range of scientists and engineers concerned with problems in fluid mechanics.The four-part treatment begins with a presentation of the derivation of the basic hydrodynamic theory for non-viscous incompressible fluids and a description of the two principal approximate theories that form the basis for the rest of the book. The second section centers on the approximate theory that results from small-amplitude wave motions. A consideration of problems involving waves in shallow water follows, and the text concludes with a selection of problems solved in terms of the exact theory. Despite the diversity of its topics, this text offers a unified, readable, and largely self-contained treatment.
Water Waves and Ship Hydrodynamics: An Introduction
by A. J. HermansIn this book an introduction is given to aspects of water waves that play a role in ship hydrodynamics and offshore engineering. At first the equations and linearized boundary conditions are derived describing the non-viscous free surface water waves, with special attention to the combination of steady and non-steady flow fields. Then some simple kinds of free wave solutions are derived, such as plane waves and cylindrical waves. For several situations, steady and unsteady, the source singularity function is derived. These functions play a role in numerical codes used to describe the motion of ships and offshore structures. These codes are mostly based on a boundary integral formulation; therefore we give an introduction to these methods. It is shown how first order ship motions can be determined. In offshore engineering the second order wave drift motions play an important role. An introduction to this phenomenon is given and the effects which have to be taken into account are explained by means of a simple example where we can determine nearly all the aspects analytically. An interesting example that is worked out is the motion of very large floating flexible platforms with finite draft. Finally an introduction to the theory of shallow water non-linear dispersive waves is presented, and shallow water ship hydrodynamics, that plays a role in coastal areas and channels is treated. Here attention is paid to the interaction between passing ships in restricted water. In the appendix a short introduction to some of the mathematical tools is given.