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Kummer Group


A group of linear fractional transformations which transform the arguments of Kummer solutions to the hypergeometric differential equation into each other. Define

A(z)=1-z
(1)
B(z)=1/z,
(2)

then the elements of the group are {I,A,B,AB,BA,ABA=BAB}.


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Cite this as:

Weisstein, Eric W. "Kummer Group." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/KummerGroup.html

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