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arXiv 0907.5545math-phmath.MP
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p-adic域上的椭圆型伪微分方程与Sobolev空间

Elliptic Pseudo-Differential Equations and Sobolev Spaces over p-adic Fields

J. J. Rodriguez-Vega, W. A. Zuniga-Galindo

摘要:

研究了$f(D,α)u=v$型方程的解,其中$f(D,α)$是$p$ -adic伪微分算子.如果$v$是一个Bruhat-Schwartz函数,则存在一个分布$E_α$,一个基本解,使得$u=E_α\ast v$是一个解。然而,不知道$E_α\ast v$属于哪个函数空间。本文证明了若$f(D,α)$是椭圆算子,则$u=E_α\ast v$属于某个Sobolev空间.进一步给出了$u$连续唯一的条件.通过修改Sobolev范数,我们可以建立$f(D,α)$给出某些Sobolev空间之间的同构。

英文摘要:

We study the solutions of equations of type $f(D,α)u=v$, where $f(D,α)$ is a $p$-adic pseudo-differential operator. If $v$ is a Bruhat-Schwartz function, then there exists a distribution $E_α$, a fundamental solution, such that $u=E_α\ast v$ is a solution. However, it is unknown to which function space $E_α\ast v$ belongs. In this paper, we show that if $f(D,α)$ is an elliptic operator, then $u=E_α\ast v$ belongs to a certain Sobolev space. Furthermore, we give conditions for the continuity and uniqueness of $u$. By modifying the Sobolev norm, we can establish that $f(D,α)$ gives an isomorphism between certain Sobolev spaces.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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