activity
20142024
most citedAlgorithmic recognition of quasipositive braids of algebraic length two

7 citations · 14 across the 9 of their papers we have counts for

collaborators

9 papers

math.CO2024

Asymptotics of the number of lattice triangulations of rectangles of width 4 and 5

Stepan Orevkov

Let be the number of primitive lattice triangulations of an rectangle. We express the limits for and in terms of certain s…

math.AG2024

Separating semigroup of genus 4 curves

S. Yu. Orevkov

A rational function on a real algebraic curve is called separating if it takes real values only at real points. Such a function defines a covering …

math.GT2024

Seifert forms and slice Euler characteristic of links

S. Yu. Orevkov, V. Florens

We define the Witt coindex of a link with non-trivial Alexander polynomial, as a concordance invariant from the Seifert form. We show that it provides an upper bound for the (local…

math.AG2023★ 2 cited

On intersection of lemniscates of rational functions

Stepan Orevkov, Fedor Pakovich

For a non-constant complex rational function , the lemniscate of is defined as the set of points such that . The lemniscate of coinc…

math.AG2023

Complete bipartite graphs flexible in the plane

M. D. Kovalev, S. Yu. Orevkov

A complete bipartite graph , considered as a planar linkage with joints at the vertices and with rods as edges, in general admits only motions as a whole, i.e., is inflexi…

math.GT2020

Plane algebraic curves in fancy balls

N. G. Kruzhilin, S. Yu. Orevkov

Boileau and Rudolph called a link in the -sphere a -boundary if it can be realized as the intersection of an algebraic curve in with the boundary of a s…

math.GT2020★ 4 cited

On alternating quasipositive links

Stepan Orevkov

We prove that if a quasipositive link can be represented by an alternating diagram satisfying the condition that no pair of Seifert circles is connected by a single crossing, then…

math.AG2017★ 1 cited

On the hyperbolicity locus of a real curve

Stepan Orevkov

Given a real algebraic curve in the projective 3-space, its hyperbolicity locus is the set of lines with respect to which the curve is hyperbolic. We give an example of a smooth ir…

math.GR2014★ 7 cited

Algorithmic recognition of quasipositive braids of algebraic length two

Stepan Yu. Orevkov

We give an algorithm to decide if a given braid is a product of two factors which are conjugates of given powers of standard generators of the braid group. The same problem is solv…