V2EX poisson equation

Poisson Equation

释义 Definition

Poisson equation(泊松方程):一种常见的椭圆型偏微分方程,通常写作 φ = f,表示某个标量场 φ 的拉普拉斯算子等于给定的源项 f。常用于描述静电势、引力势、稳态热传导等“由分布的源产生的势场”。

发音 Pronunciation (IPA)

/pwsn kwen/

例句 Examples

We solved the Poisson equation to find the electric potential.
我们通过求解泊松方程来得到电势。

In computational physics, the Poisson equation often appears when modeling steady-state fields with distributed sources.
在计算物理中,当对具有分布源的稳态场进行建模时,泊松方程经常出现。

词源 Etymology

“Poisson”来自法国数学家西默翁德尼泊松(Siméon Denis Poisson, 17811840)的姓氏;“equation”源自拉丁语 aequatio,意为“使相等”。“泊松方程”因其在数学物理中的重要贡献与相关研究而以泊松命名。

相关词 Related Words

文献与作品 Literary / Notable Works

  • Classical Electrodynamics(J. D. Jackson)在静电学部分系统使用泊松方程与边界值问题。
  • Mathematical Methods for Physicists(Arfken & Weber)以泊松方程作为典型方程讲解分离变量法、格林函数等方法。
  • Partial Differential Equations(Lawrence C. Evans)将泊松方程作为椭圆型方程理论与弱解框架中的核心例子。
  • The Feynman Lectures on Physics(费曼物理学讲义)在电势与场的讨论中涉及与泊松方程等价/相关的形式。
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