Symmetries of the hypergeometric function mF_m-1

dc.creatorGleizer, Oleg
dc.date2004-11-22
dc.date2006-07-08
dc.date.accessioned2026-07-07T06:39:03Z
dc.date.available2026-07-07T06:39:03Z
dc.descriptionIn this paper, we show that the generalized hypergeometric function mF_m-1 has a one parameter group of local symmetries, which is a conjugation of a flow of a rational Calogero-Mozer system. We use the symmetry to construct fermionic fields on a complex torus, which have linear-algebraic properties similar to those of the local solutions of the generalized hypergeometric equation. The fields admit a non-trivial action of the quaternions based on the above symmetry. We use the similarity between the linear-algebraic structures to introduce the quaternionic action on the direct sum of the space of solutions of the generalized hypergeometric equation and its dual. As a side product, we construct a ``good'' basis for the monodromy operators of the generalized hypergeometric equation inspired by the study of multiple flag varieties with finitely many orbits of the diagonal action of the general linear group by Magyar, Weyman, and Zelevinsky. As an example of computational effectiveness of the basis, we give a proof of the existence of the monodromy invariant hermitian form on the space of solutions of the generalized hypergeometric equation (in the case of real local exponents) different from the proofs of Beukers and Heckman and of Haraoka. As another side product, we prove an elliptic generalization of Cauchy identity.
dc.descriptionThis is the final version of the paper. An Appendix on the Calogero-Mozer system has been added to the previous version. The paper is to appear in TAMS without the Appendix
dc.identifierhttps://arxiv.org/abs/math/0411476
dc.identifierhttp://arxiv.org/abs/math/0411476
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/100949
dc.subjectClassical Analysis and ODEs
dc.subjectMathematical Physics
dc.subject33C20
dc.titleSymmetries of the hypergeometric function mF_m-1
dc.typetext

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