activity
20052023
most citedAn explicit formula for the number of tunnels in digital objects

19 citations · 20 across the 5 of their papers we have counts for

collaborators

6 papers

math.CO2023

Graphs with degree sequence and

Boris Brimkov, Valentin Brimkov

In this paper we study the class of graphs that have the same degree sequence as two disjoint cliques and , as well as the class of the com…

cs.DM2018

Optimal conditions for connectedness of discretized sets

Boris Brimkov, Valentin E. Brimkov

Constructing a discretization of a given set is a major problem in various theoretical and applied disciplines. An offset discretization of a set is obtained by taking the inte…

cs.DM2014

Homothetic Polygons and Beyond: Intersection Graphs, Recognition, and Maximum Clique

Valentin E. Brimkov, Konstanty Junosza-Szaniawski, Sean Kafer +5

We study the {\sc Clique} problem in classes of intersection graphs of convex sets in the plane. The problem is known to be NP-complete in convex-set intersection graphs and straig…

q-bio.QM2013★ 1 cited

Geometric approach to string analysis: deviation from linearity and its use for biosequence classification

Boris Brimkov, Valentin E. Brimkov

Tools that effectively analyze and compare sequences are of great importance in various areas of applied computational research, especially in the framework of molecular biology. I…

cs.CG2010

Patrolling a Street Network is Strongly NP-Complete but in P for Tree Structures

Valentin E. Brimkov

We consider the following problem: Given a finite set of straight line segments in the plane, determine the positions of a minimal number of points on the segments, from which guar…

cs.DM2005★ 19 cited

An explicit formula for the number of tunnels in digital objects

Valentin Brimkov, Angelo Maimone, Giorgio Nordo

An important concept in digital geometry for computer imagery is that of tunnel. In this paper we obtain a formula for the number of tunnels as a function of the number of the obje…