解析函数的两点Taylor展开式
Two-point Taylor Expansions of Analytic Functions
摘要:
讨论了解析函数关于两点的泰勒展开。给出了展开式中系数和展开子的柯西型公式,并指出了收敛区域。它解释了如何使用这些展开式在推导统一的渐近展开的积分。该方法也可用于获得两点的Laurent展开式。
英文摘要:
Taylor expansions of analytic functions are considered with respect to two points. Cauchy-type formulas are given for coefficients and remainders in the expansions, and the regions of convergence are indicated. It is explained how these expansions can be used in deriving uniform asymptotic expansions of integrals. The method is also used for obtaining Laurent expansions in two points.
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