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20192026
most citedOn the Parameterized Complexity of Sparsest Cut and Small-set Expansion Problems

1 citations · 1 across the 11 of their papers we have counts for

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8 papers · 1 filter

cs.DS2026

Odd Cycle Transversal on -free graphs

Esther Galby, Paloma T. de Lima, Andrea Munaro +1

\textsc{Odd Cycle Transversal} is a classic -hard graph optimization problem asking for a minimum-weight set of vertices whose deletion makes the input graph bipartite…

math.CO2026

Induced packing treewidth II. Excluding a clique or a biclique

Amir Nikabadi, Paweł Rzążewski

The notion of induced packing treewidth aims to unify classes defined by forbidden induced subgraphs or induced minors with classes defined by the existence of certain structured t…

cs.LO2026

A Dense Weisfeiler-Leman Algorithm for Deciding Bounded-Cliquewidth Homomorphism Indistinguishability

Radu Curticapean, Daniel Neuen, Amir Nikabadi +2

Two graphs and are homomorphism indistinguishable over a graph class if they admit the same number of homomorphisms from every graph in . A wide…

math.CO2026

Induced packing treewidth

Amir Nikabadi, Paweł Rzążewski

In this paper, we introduce a framework that aims to unify classes defined by forbidden induced subgraphs or induced minors with classes defined by the existence of certain structu…

math.CO2026

Counting equitable -colorings in graphs of bounded clique-width

Holger Dell, Thore Husfeldt, Amir Nikabadi

For a graph , a proper -coloring of is \emph{equitable} if the sizes of any two color classes differ by at most one. The \textsc{Equitable -Coloring} problem asks, for…

cs.DM2026

Clique-width and induced topological minors

Paweł Rafał Bieliński, Jadwiga Czyżewska, Martin Milanič +2

A is a chordless path on four vertices. A diamond is a graph obtained from a clique of size four by removing one edge of the clique. A paw is a graph obtained from a clique o…

cs.DM2026

The Gallai Vertex Problem is -Complete

Amir Nikabadi, Eva Rotenberg, Lasse Wulf

When a graph admits a vertex that is contained in all its longest paths, we call a Gallai vertex. These are named after Gallai, who in 1966 asked the question if it is…

math.CO2026

Equitable coloring of large bipartite graphs

Amir Nikabadi

For a graph , the \emph{equitable chromatic number} of , denoted by , is the smallest integer such that admits a proper -coloring whose color classes diffe…