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This proceedings contains 72 technical papers presented at the Third International Conference on Discrete Element Methods, held in Santa Fe, New Mexico, on September 23-25, 2002. Discrete element methods (DEM) include a suite of numerical techniques developed to model granular materials, rock, and other discontinua at the grain scale. Topics addressed include DEM formulation and implementation approaches, coupled methods, experimental validation, and techniques, including three-dimensional particle representations, efficient contact detection algorithms, particle packing schemes, and code design. Coupled methods include approaches to linking solid continuum and fluid models with DEM to simulate multiscale and multiphase phenomena. Applications include fundamental investigations of granular mechanics; micromechanical studies of powder, soil, and rock behavior; and large-scale modeling of geotechnical, material processing, mining, and petroleum engineering problems. ... Read more

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There is a strong case for electrical network topologists and submodular function theorists being aware of each other's fields.

Presenting a topological approach to electrical network theory, this book demonstrates the strong links that exist between submodular functions and electrical networks.

The book contains:

• a detailed discussion of graphs, matroids, vector spaces and the algebra of generalized minors, relevant to network analysis (particularly to the construction of efficient circuit simulators)

• a detailed discussion of submodular function theory in its own right; topics covered include, various operations, dualization, convolution and Dilworth truncation as well as the related notions of prinicpal partition and principal lattice of partitions.

In order to make the book useful to a wide audience, the material on electrical networks and that on submodular functions is presented independently of each other.

The hybrid rank problem, the bridge between (topological) electrical network theory and submodular functions, is covered in the final chapter.

The emphasis in the book is on low complexity algorithms, particularly based on bipartite graphs.

The book is intended for self-study and is recommended to designers of VLSI algorithms. More than 300 problems, almost all of them with solutions, are included at the end of each chapter. ... Read more

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Topics include logic, set theory, relations and functions,vectors and matrices, graph theory, counting and the binomial theorem,probability, Boolean algebra, and linear programming and game theory. ... Read more

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Paperback West Group ... Read more