An Introduction to Nonlinear Partial Differential Equations by J. David Logan PDF

By J. David Logan

ISBN-10: 0470225955

ISBN-13: 9780470225950

Compliment for the 1st variation:

"This booklet is easily conceived and good written. the writer has succeeded in generating a textual content on nonlinear PDEs that's not purely particularly readable but additionally obtainable to scholars from diversified backgrounds."
—SIAM Review

A functional creation to nonlinear PDEs and their real-world applications

Now in a moment version, this renowned ebook on nonlinear partial differential equations (PDEs) comprises multiplied assurance at the valuable issues of utilized arithmetic in an ordinary, hugely readable layout and is out there to scholars and researchers within the box of natural and utilized arithmetic. This ebook presents a brand new specialize in the expanding use of mathematical purposes within the lifestyles sciences, whereas additionally addressing key themes reminiscent of linear PDEs, first-order nonlinear PDEs, classical and vulnerable ideas, shocks, hyperbolic structures, nonlinear diffusion, and elliptic equations. not like similar books that usually basically use formal proofs and thought to illustrate effects, An creation to Nonlinear Partial Differential Equations, moment version takes a simpler method of nonlinear PDEs via emphasizing how the implications are used, why they're vital, and the way they're utilized to genuine problems.

The intertwining dating among arithmetic and actual phenomena is chanced on utilizing particular examples of functions throughout quite a few components comparable to biology, combustion, site visitors move, warmth move, fluid mechanics, quantum mechanics, and the chemical reactor concept. New good points of the second one version additionally include:

  • Additional intermediate-level routines that facilitate the advance of complex problem-solving skills

  • New functions within the organic sciences, together with age-structure, trend formation, and the propagation of diseases

  • An extended bibliography that enables additional research into really good topics

With person, self-contained chapters and a extensive scope of insurance that provides teachers the pliability to layout classes to fulfill particular pursuits, An advent to Nonlinear Partial Differential Equations, moment variation is a perfect textual content for utilized arithmetic classes on the upper-undergraduate and graduate degrees. It additionally serves as a important source for researchers and pros within the fields of arithmetic, biology, engineering, and physics who wish to additional their wisdom of PDEs.

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Extra resources for An Introduction to Nonlinear Partial Differential Equations

Sample text

Clearly. therefore. data cannot be independently specified along the boundary x = b. In this case. the initial data along 0 < z < 1 are carried along the straight lines to the segment A on x = 1: the boundary data along x = 0 is carried to the segment B on x = 1. Thus u(1. t ) cannot be specified arbitrarily. 0 42 1. 14 Right-moving characteristics carrying left boundary and initial data into the region of interest. Arbitrary data may not be prescribed along the right boundary x = 1 labeled A and B.

Find the characteristic coordinates and graph the characteristic curves in the xt plane. Reduce the equation to canonical form and find the general solution. 10. Classify the PDE xu,, - 4utt = 0. In the case x > 0 find the characteristic coordinates and sketch the characteristics in an appropriate region in the xt plane. 11. Use the separation of variables method to find a series representation of the solution to the following problems: (a) ut = Du,,. 0 < x < T , t > 0. t) = 0. u(x,t)= 0, t > 0, u ( z .

0 42 1. 14 Right-moving characteristics carrying left boundary and initial data into the region of interest. Arbitrary data may not be prescribed along the right boundary x = 1 labeled A and B. The preceding example shows that we must be careful in defining a wellposed problem. Mathematically correct initial conditions and boundary conditions are associated with types of PDEs (hyperbolic, parabolic, elliptic). as well as their order. Conditions that ensure well-posedness are often suggested by the underlying physical problem.

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An Introduction to Nonlinear Partial Differential Equations by J. David Logan


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