Author: Christian G. Simader
Publisher: Springer
ISBN: 3540375899
Category : Mathematics
Languages : en
Pages : 243

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Author: Christian G Simader
Publisher: CRC Press
ISBN: 9780582209534
Category : Mathematics
Languages : en
Pages : 308

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Book Description
The Dirichlet Problem -?u=ƒ in G, u|?G=0 for the Laplacian in a domain GÌRn with boundary ?G is one of the basic problems in the theory of partial differential equations and it plays a fundamental role in mathematical physics and engineering.

Author: George Emil Raynor
Publisher:
ISBN:
Category : Dirichlet problem
Languages : en
Pages : 26

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Author: Avron Douglis
Publisher:
ISBN:
Category : Differential equations, Elliptic
Languages : en
Pages : 88

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Book Description

Author: R. Courant
Publisher: Springer Science & Business Media
ISBN: 1461299179
Category : Mathematics
Languages : en
Pages : 340

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Book Description
It has always been a temptation for mathematicians to present the crystallized product of their thoughts as a deductive general theory and to relegate the individual mathematical phenomenon into the role of an example. The reader who submits to the dogmatic form will be easily indoctrinated. Enlightenment, however, must come from an understanding of motives; live mathematical development springs from specific natural problems which can be easily understood, but whose solutions are difficult and demand new methods of more general significance. The present book deals with subjects of this category. It is written in a style which, as the author hopes, expresses adequately the balance and tension between the individuality of mathematical objects and the generality of mathematical methods. The author has been interested in Dirichlet's Principle and its various applications since his days as a student under David Hilbert. Plans for writing a book on these topics were revived when Jesse Douglas' work suggested to him a close connection between Dirichlet's Principle and basic problems concerning minimal sur faces. But war work and other duties intervened; even now, after much delay, the book appears in a much less polished and complete form than the author would have liked."

Author: Jan Chabrowski
Publisher: Springer
ISBN: 3540384006
Category : Mathematics
Languages : en
Pages : 177

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Book Description
The Dirichlet problem has a very long history in mathematics and its importance in partial differential equations, harmonic analysis, potential theory and the applied sciences is well-known. In the last decade the Dirichlet problem with L2-boundary data has attracted the attention of several mathematicians. The significant features of this recent research are the use of weighted Sobolev spaces, existence results for elliptic equations under very weak regularity assumptions on coefficients, energy estimates involving L2-norm of a boundary data and the construction of a space larger than the usual Sobolev space W1,2 such that every L2-function on the boundary of a given set is the trace of a suitable element of this space. The book gives a concise account of main aspects of these recent developments and is intended for researchers and graduate students. Some basic knowledge of Sobolev spaces and measure theory is required.

Author: Thomas H. Otway
Publisher: Springer
ISBN: 3642244157
Category : Mathematics
Languages : en
Pages : 219

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Book Description
Partial differential equations of mixed elliptic-hyperbolic type arise in diverse areas of physics and geometry, including fluid and plasma dynamics, optics, cosmology, traffic engineering, projective geometry, geometric variational theory, and the theory of isometric embeddings. And yet even the linear theory of these equations is at a very early stage. This text examines various Dirichlet problems which can be formulated for equations of Keldysh type, one of the two main classes of linear elliptic-hyperbolic equations. Open boundary conditions (in which data are prescribed on only part of the boundary) and closed boundary conditions (in which data are prescribed on the entire boundary) are both considered. Emphasis is on the formulation of boundary conditions for which solutions can be shown to exist in an appropriate function space. Specific applications to plasma physics, optics, and analysis on projective spaces are discussed. (From the preface)

Author: Edward Norman Dancer
Publisher: American Mathematical Soc.
ISBN: 0821825631
Category : Mathematics
Languages : en
Pages : 81

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Book Description
In this paper, we discuss the existence, uniqueness and asymptotic behavior of positive solutions of the equation −[capital Greek]Delta[italic]u = [lowercase Greek]Lambda[function]ƒ([italic]u) in [capital Greek]Omega[surmounted by macron] [times symbol] [−[italic]n, [italic]n], [and] [italic]u = 0 on [partial derivative/boundary/degree of a polynomial symbol]([capital Greek]Omega[surmounted by macron] [times symbol] [−[italic]n, [italic]n]) for [italic]n large. Here [capital Greek]Omega[surmounted by macron] is a bounded domain in [italic capital]R[superscript italic]k with smooth boundary. Note that by rescaling the equation (including [lowercase Greek]Lambda), our theory covers problems on domains ([set membership symbol][capital Greek]Omega[surmounted by macron]) [times symbol] [−1,1] where [set membership symbol] is small.

Author: Michael Röckner
Publisher: American Mathematical Soc.
ISBN: 0821823256
Category : Mathematics
Languages : en
Pages : 86

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Book Description
"March 1985, volume 54, number 324 (end of volume)"

Author: George Emil Raynor
Publisher:
ISBN:
Category :
Languages : en
Pages : 21

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Book Description