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19982026
most citedEssentials of the method of maximal singularities

63 citations

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13 papers · 1 filter

math.CO2018★ 4 cited

On interrelations between strongly, weakly and chord separated set-systems (a geometric approach)

V. I. Danilov, A. V. Karzanov, G. A. Koshevoy

We consider three types of set-systems that have interesting applications in algebraic combinatorics and representation theory: maximal collections of the so-called strongly separa…

math.CO2014

A combinatorial algorithm for the planar multiflow problem with demands located on three holes

Maxim A. Babenko, Alexander V. Karzanov

We consider an undirected multi(commodity)flow demand problem in which a supply graph is planar, each source-sink pair is located on one of three specified faces of the graph, and…

math.CO2014★ 9 cited

Combined tilings and separated set-systems

Vladimir I. Danilov, Alexander V. Karzanov, Gleb A. Koshevoy

In 1998, Leclerc and Zelevinsky introduced the notion of weakly separated collections of subsets of the ordered -element set (using this notion to give a combinatorial cha…

math.CO2012

Assembling crystals of type A

Vladimir I. Danilov, Alexander V. Karzanov, Gleb A. Koshevoy

Regular -crystals are certain edge-colored directed graphs which are related to representations of the quantized universal enveloping algebra . For s…

math.CO2011★ 1 cited

Planar flows and quadratic relations over semirings

Vladimir I. Danilov, Alexander V. Karzanov, Gleb A. Koshevoy

Adapting Lindström's well-known construction, we consider a wide class of functions which are generated by flows in a planar acyclic directed graph whose vertices (or edges) take w…

math.CO2010

Condorcet domains of tiling type

Vladimir I. Danilov, Alexander V. Karzanov, Gleb A. Koshevoy

A Condorcet domain (CD) is a collection of linear orders on a set of candidates satisfying the following property: for any choice of preferences of voters from this collection, a s…