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JOURNALS // Journal of Siberian Federal University. Mathematics & Physics // Archive

J. Sib. Fed. Univ. Math. Phys., 2023 Volume 16, Issue 6, Pages 738–750 (Mi jsfu1120)

Mellin transforms for rational functions with quasi-elliptic denominators

Irina A. Antipovaa, Timofey A. Efimovb, Avgust K. Tsikha

a Siberian Federal University, Krasnoyarsk, Russian Federation
b MAEI Gymnasium no. 10, Divnogorsk, Krasnoyarsk Krai, Russian Federation

Abstract: The paper deals with residue representations of $n$–dimensional Mellin transforms for rational functions with quasi-elliptic denominators. These representations are given by integrals over $(n-1)$-dimensional relative cycles. The amount of representations (or cycles) equals to the number of facets of the Newton polytope for the denominator of the rational function.

Keywords: multidimensional Mellin transform, quasi-elliptic polynomial, Leray residue form, amoeba.

UDC: 517.55

Received: 14.12.2022
Received in revised form: 04.09.2023
Accepted: 04.10.2023

Language: English



© Steklov Math. Inst. of RAS, 2024