Soil quality for crop production and ecosystem health

Sample

Jukka Saranen, Gennadi Vainikko

Classical boundary integral equations arising from the potential theory and acoustics (Laplace and Helmholtz equations) are derived. Using the parametrization of the boundary these equations take a form of periodic pseudodifferential equations. A general theory of periodic pseudodifferential equations and methods of solving are developed, including trigonometric Galerkin and collocation methods, their fully discrete versions with fast solvers, quadrature and spline based methods. The theory of periodic pseudodifferential operators is presented in details, with preliminaries (Fredholm operators, periodic distributions, periodic Sobolev spaces) and full proofs. This self-contained monograph can be used as a textbook by graduate/postgraduate students. It also contains a lot of carefully chosen exercises.

Sample

Keith W. Little

"This book examines mathematical modeling and computer simulations that estimate the distribution of chemical contaminants in environmental media in time and space. Discussing various modeling issues in a single volume, this text provides an introduction to a specific numerical modeling technique called the compartment approach and offers a practical user's guide to the GEM. It includes the Generic Environmental Model (GEM) software package, which implements the techniques described. The author presents algorithms for solving linear and nonlinear systems of algebraic equations as well as systems of linear and nonlinear partial differential equations"--

Sample

P.K. Jain, O.P. Ahuja, Khalil Ahmad

The book is intended to serve as a textbook for an introductory course in functional analysis for the senior undergraduate and graduate students. It can also be useful for the senior students of applied mathematics, statistics, operations research, engineering and theoretical physics. The text starts with a chapter on Preliminaries discussing basic concepts and results which would be taken for granted later in the book. This is followed by chapters on Normed and Banach Spaces, Bounded Linear Operators, Bounded Linear Functionals, The Concept and Specific Geometry of Hilbert Spaces, Functionals and Operators on Hilbert Spaces and Introduction to Spectral Theory. An appendix have been given on Schauder Bases. The salient features of the book are presentation of the subject in a natural way, description of the concepts with justification, clear and precise exposition avoiding pendantry, various examples and counter examples, and graded problems throughout each chapter. Notes and remarks within the text enhances the utility of the book for the students.

Sample

Eric Yoder and Natalie Yoder

65 short mysteries introduce readers to science facts ranging from the life, earth and space, physical and chemical, to the general sciences. Tap into your science wisdom and critical thinking skills to solve these brainteasers!