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arXiv 0712.3091math.CA
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单位球上的正交多项式与偏微分方程

Orthogonal polynomials and partial differential equations on the unit ball

Miguel Pinar, Yuan Xu

摘要:

已知关于$\RR^d$中的单位球上的权重函数$W_μ(x) = (1-\|x\|^2)^μ$的次数$n$的正交多项式满足用于$μ> -1$的偏微分方程$$ [ Δ- \la x, \nabla \ra^2 - (2 μ+d) \la x, \nabla \ra \right ] P = -n(n+2 μ+d) P $$。本文研究了$μ= -1,-2, ...$的奇异情形。构造了显式多项式解,证明了当维数$d$为奇数时,方程$ν= -2,-3,...$具有完全多项式解.讨论了解的正交性。

英文摘要:

Orthogonal polynomials of degree $n$ with respect to the weight function $W_μ(x) = (1-\|x\|^2)^μ$ on the unit ball in $\RR^d$ are known to satisfy the partial differential equation $$ [ Δ- \la x, \nabla \ra^2 - (2 μ+d) \la x, \nabla \ra \right ] P = -n(n+2 μ+d) P $$ for $μ> -1$. The singular case of $μ= -1,-2, ...$ is studied in this paper. Explicit polynomial solutions are constructed and the equation for $ν= -2,-3,...$ is shown to have complete polynomial solutions if the dimension $d$ is odd. The orthogonality of the solution is also discussed.

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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