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The Best Approximation Method An Introduction (Paperback, Softcover reprint of the original 1st ed. 1987)
Loot Price: R2,932
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The Best Approximation Method An Introduction (Paperback, Softcover reprint of the original 1st ed. 1987)
Series: Lecture Notes in Engineering, 27
Expected to ship within 10 - 15 working days
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The most commonly used numerical techniques in solving engineering
and mathematical models are the Finite Element, Finite Difference,
and Boundary Element Methods. As computer capabilities continue to
impro' e in speed, memory size and access speed, and lower costs,
the use of more accurate but computationally expensive numerical
techniques will become attractive to the practicing engineer. This
book presents an introduction to a new approximation method based
on a generalized Fourier series expansion of a linear operator
equation. Because many engineering problems such as the multi
dimensional Laplace and Poisson equations, the diffusion equation,
and many integral equations are linear operator equations, this new
approximation technique will be of interest to practicing
engineers. Because a generalized Fourier series is used to develop
the approxi mator, a "best approximation" is achieved in the
"least-squares" sense; hence the name, the Best Approximation
Method. This book guides the reader through several mathematics
topics which are pertinent to the development of the theory
employed by the Best Approximation Method. Working spaces such as
metric spaces and Banach spaces are explained in readable terms.
Integration theory in the Lebesque sense is covered carefully.
Because the generalized Fourier series utilizes Lebesque
integration concepts, the integra tion theory is covered through
the topic of converging sequences of functions with respect to
measure, in the mean (Lp), almost uniformly IV and almost
everywhere. Generalized Fourier theory and linear operator theory
are treated in Chapters 3 and 4."
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