通便 发表于 2025-3-23 12:32:52

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Biomarker 发表于 2025-3-23 15:40:58

978-3-662-37293-7Springer-Verlag Berlin Heidelberg 1969

N防腐剂 发表于 2025-3-23 20:25:44

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障碍 发表于 2025-3-24 01:21:00

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harrow 发表于 2025-3-24 02:54:37

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Charitable 发表于 2025-3-24 08:34:44

Introduction,In the following we shall explain the basic ideas of the theory of integral operators generating solutions of linear partial differential equations with analytic coefficients.

expository 发表于 2025-3-24 11:24:00

Ergebnisse der Mathematik und Ihrer Grenzgebiete. 1. Folgehttp://image.papertrans.cn/i/image/468334.jpg

minaret 发表于 2025-3-24 18:19:15

Differential equations in two variables with entire coefficients,so-called integral operator of the first kind which will be discussed in §§ 1–3. We shall express solutions . in terms of an arbitrary function of a complex variable .(.). Next, .(.) will be expressed in terms of a function .(.) which essentially coincides with .(., 0), see (2. 1) and (2–5).

值得赞赏 发表于 2025-3-24 19:52:18

Harmonic functions in three variables, functions represent a linear space, but they neither form an algebra nor possess group properties. However, by associating, in a one-to-one way, a function .. of one or more complex variables with every hormonic function of three variables, .. = ..(..), . = 1, 2, we can define a composition rule “ʘ” for the .. by writing

痛打 发表于 2025-3-24 23:22:15

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查看完整版本: Titlebook: Integral Operators in the Theory of Linear Partial Differential Equations; Stefan Bergman Book 1969 Springer-Verlag Berlin Heidelberg 1969