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SumTools[Hypergeometric][IsHolonomic] - test if a given bivariate hypergeometric term is holonomic
SumTools[Hypergeometric][IsProperHypergeometricTerm] - test if a given bivariate hypergeometric term is proper
Calling Sequence
IsHolonomic(T, n, k)
IsProperHypergeometricTerm(T, n, k)
Parameters
T
-
hypergeometric term of n and k
n
variable
k
Description
The IsProperHypergeometricTerm(T,n,k) command returns true if is a proper hypergeometric term. Otherwise, it returns false.
The IsHolonomic(T,n,k) command returns true if the bivariate hypergeometric term is holonomic. Otherwise, it returns false.
A bivariate hypergeometric term is proper if it can be written as where is a polynomial of n and k, and , are integers, and are non-negative integers, are complex numbers.
It can be shown that is proper if and only if it is holonomic.
Note: If is a proper hypergeometric term, the termination of Zeilberger's algorithm is guaranteed.
Examples
See Also
SumTools[Hypergeometric], SumTools[Hypergeometric][ConjugateRTerm], SumTools[Hypergeometric][IsHypergeometricTerm], SumTools[Hypergeometric][Zeilberger]
References
Abramov, S.A., and Petkovsek, M. "Proof of a Conjecture of Wilf and Zeilberger." Preprint series. Vol. 39. (2001): 748. University of Ljubljana, ISSN 1318--4865.
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