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Partial differential equations (PDEs): Existence and uniqueness, regularity, boundary conditions, linear and non-linear operators, stability, soliton theory, integrable PDEs, conservation laws, qualitative dynamics.

1 vote
2 answers
1k views

Existence of solution of a Non-linear PDE via Fixed point theorem

Hi all I've the following non-linear PDE $-\Delta Y + Y^3 =U$ on $\Omega \subset R^n $, open, bounded, Lipschitz boundary domain $Y=0 , $ on $\partial\Omega$ 1.Let $Y\in H_0^1 $ and as $H_0^1 \hoo …
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0 votes
1 answer
142 views

A special Integral Kernel

Does there exist either one / general class of non-negative definite , symmetric Integral Kernel map satisfying the following properties ?? $f(x)=(Kg)(x)=\int_{\Omega}K(x,y)g(y)dy$ $K:L^2(\Omeg …
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0 votes
1 answer
479 views

Discrete Sobolev space of $R^n$ valued maps

Can some one tell me the reference or any idea how to take the Discrete Sobolev space work defined for a scalar valued map to the space of maps which are vector valued.Let's say $f:\Omega \rightarro …
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