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A study on ratio of the \(\Theta\)--Theta functions - MaRDI portal

A study on ratio of the \(\Theta\)--Theta functions (Q702543)

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scientific article; zbMATH DE number 2128766
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A study on ratio of the \(\Theta\)--Theta functions
scientific article; zbMATH DE number 2128766

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    A study on ratio of the \(\Theta\)--Theta functions (English)
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    17 January 2005
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    The authors show that the four fundamental theta functions satisfy a nonlinear differential equation, involving also the quotient of the first and third theta functions. They use some results from the monograph of \textit{D. Mumford} [Tata lectures on theta. I (Progress in Mathematics 28, Boston: Birkhäuser) (1983; Zbl 0509.14049)], as well as a table on the transformations in various periods of the four theta functions.
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    elliptic functions
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    theta functions
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