Download e-book for iPad: Applied Partial Differential Equations: A Visual Approach by Peter A. Markowich

By Peter A. Markowich

ISBN-10: 3540346457

ISBN-13: 9783540346456

This booklet offers chosen issues in technological know-how and engineering from an applied-mathematics standpoint. The defined usual, socioeconomic, and engineering phenomena are modeled via partial differential equations that relate country variables corresponding to mass, speed, and effort to their spatial and temporal diversifications. mostly, those equations are hugely nonlinear; in lots of instances they're platforms, and so they characterize demanding situations even for the main sleek and complicated mathematical and numerical-analytic ideas. the chosen issues mirror the longtime medical pursuits of the writer. They contain flows of fluids and gases, granular-material flows, organic strategies corresponding to development formation on animal skins, kinetics of rarified gases, loose limitations, semiconductor units, and socioeconomic procedures. every one subject is in short brought in its medical or engineering context, by way of a presentation of the mathematical versions within the kind of partial differential equations with a dialogue in their simple mathematical houses. the writer illustrates every one bankruptcy through a chain of his personal top of the range photos, which exhibit that partial differential equations are robust instruments for modeling a wide number of phenomena influencing our day-by-day lives.

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Applied Partial Differential Equations: A Visual Approach by Peter A. Markowich PDF

This booklet offers chosen subject matters in technology and engineering from an applied-mathematics standpoint. The defined typical, socioeconomic, and engineering phenomena are modeled by way of partial differential equations that relate nation variables similar to mass, speed, and effort to their spatial and temporal adaptations.

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Example text

Note that h + Z is the local level of the water surface, measured vertically again from the constant 0-level below the bottom of the river. For analytical and numerical work on (even more general) Saint–Venant systems we refer to the paper [4]. Spectacular simulations of the breaking of a dam and of river flooding using Saint–Venant systems can be found in Benoit Perthame’s webpage13 . Many gas flows cannot generically be considered to be incompressible, particularly at sufficiently large velocities.

As common for open systems, granular materials reveal a rich variety of self-organized structures such as large scale clusters, vortex fields, characteristic shock waves and others, which are still far from being completely understood. Most basically, granular flow modeling is often done with molecular dynamics techniques, treating the interactions of individual grains in the material. This technique requires a significant computational overhead and has been to a large extent replaced by continuum models (see [1]).

Stat. pdf 55 4. Chemotactic Cell Motion and Biological Pattern Formation Peter A. Markowich and Dietmar Ölz1 One of the most important principles governing the movement of biological cells is represented by chemotaxis, which refers to cell motion in direction of the gradient of a chemical substance. In some cases the chemical is externally produced, in others the cells themselves generate the chemical in order to facilitate cell aggregation. In certain biological processes more than one chemical is actually responsible for the chemotactic cell motion.

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Applied Partial Differential Equations: A Visual Approach by Peter A. Markowich


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