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JOURNALS // Contemporary Mathematics. Fundamental Directions // Archive

CMFD, 2013 Volume 51, Pages 21–32 (Mi cmfd252)

This article is cited in 1 paper

An invariant of knots in thickened surfaces

M. V. Zenkina

Faculty of Mathematics, Moscow State Pedagogical University, Moscow, Russia

Abstract: In the present paper, we construct an invariant of knots in the thickened sphere with $g$g handles dependent on $2g+3$ variables. In the construction of the invariant we use the Wirtinger presentation of the knot group and the concept of parity introduced by Manturov [9]. In the present paper, we also consider examples of knots in the thickened torus considered in [2] such that their nonequivalence is proved by using the constructed polynomial.

UDC: 515.162.8


 English version:
Journal of Mathematical Sciences, 2016, 214:5, 728–740


© Steklov Math. Inst. of RAS, 2026