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20212026
most citedComplex hypergeometric functions and integrable many-body problems

13 citations · 19 across the 6 of their papers we have counts for

collaborators

6 papers

math.CA2026

Askey-Wilson continued fraction at

A. R. Ismailov, V. P. Spiridonov

The continued fraction corresponding to the Askey-Wilson polynomials for is explicitly expressed as a ratio of two terminating -hypergeometric series.

math.CA2026

From hyperbolic to complex Euler integrals

N. M. Belousov, G. A. Sarkissian, V. P. Spiridonov

Hyperbolic hypergeometric integrals are defined as Barnes-type integrals of products of hyperbolic gamma functions. Their reduction to ordinary hypergeometric functions is well kno…

math-ph2025★ 2 cited

Complex rational Ruijsenaars model. The two-particle case

N. M. Belousov, G. A. Sarkissian, V. P. Spiridonov

We consider a complex rational degeneration of the hyperbolic Ruijsenaars model emerging in the limit (or in CFT) and investigate in detail the tw…

math.CA2024★ 2 cited

Complex binomial theorem and pentagon identities

N. M. Belousov, G. A. Sarkissian, V. P. Spiridonov

We consider different pentagon identities realized by the hyperbolic hypergeometric functions and investigate their degenerations to the level of complex hypergeometric functions.…

math.CA2024★ 2 cited

Complex and rational hypergeometric functions on root systems

G. A. Sarkissian, V. P. Spiridonov

We consider some new limits for the elliptic hypergeometric integrals on root systems. After the degeneration of elliptic beta integrals of type I and type II for root systems $A_n…

math-ph2021★ 13 cited

Complex hypergeometric functions and integrable many-body problems

G. A. Sarkissian, V. P. Spiridonov

General reduction of the elliptic hypergeometric equation to the level of complex hypergeometric functions is described. The derived equation is generalized to the Hamiltonian eige…