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Question: HeunG or HG in Maple 14?

Question:HeunG or HG in Maple 14?

cosmicstring 213 Maple 14
special-function heung
October 11 2010
0

The well known(!) Heun's equation is,

 

df:=diff(y(z),z,z)+(gamma/z+delta/(z-1)+epsilon/(z))*diff(y(z),z)+(alpha*beta*z-q)/(z*(z-1)*(z-a))*y(z) = 0;

 

The solution is the general Heun's functions and it should be written as HeunG according to the help file of Maple 14 but my solution is found in terms of some function called HG which is not listed in the help system.

1. Are they the same?

2. Or, is HG the "local Heun function" Hl of the literature?

3. Why is HG not listed in the help file? Or is it?
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