2 citations · 3 across the 10 of their papers we have counts for
11 papers
A Polynomial Kernel for Face Cover on Non-Embedded Planar Graphs
Thekla Hamm, Sukanya Pandey, Krisztina Szilágyi
Given a planar graph, a subset of its vertices called terminals, and , the Face Cover Number problem asks whether the terminals lie on the boundaries of at most $…
Planar Multiway Cut with Terminals on Few Faces
Sukanya Pandey, Erik Jan van Leeuwen
We consider the \textsc{Edge Multiway Cut} problem on planar graphs. It is known that this can be solved in time [Klein, Marx, ICALP 2012] and not in $n^{o(\sqrt{…
The Parameterised Complexity of Integer Multicommodity Flow
Hans L. Bodlaender, Isja Mannens, Jelle J. Oostveen +2
The Integer Multicommodity Flow problem has been studied extensively in the literature. However, from a parameterised perspective, mostly special cases, such as the Disjoint Paths…
Computing Subset Vertex Covers in -Free Graphs
Nick Brettell, Jelle J. Oostveen, Sukanya Pandey +3
We consider a natural generalization of Vertex Cover: the Subset Vertex Cover problem, which is to decide for a graph , a subset and integer , if has…
Complexity Framework for Forbidden Subgraphs IV: The Steiner Forest Problem
Hans L. Bodlaender, Matthew Johnson, Barnaby Martin +5
We study Steiner Forest on -subgraph-free graphs, that is, graphs that do not contain some fixed graph as a (not necessarily induced) subgraph. We are motivated by a recent…
Complexity Framework for Forbidden Subgraphs III: When Problems are Tractable on Subcubic Graphs
Matthew Johnson, Barnaby Martin, Sukanya Pandey +3
For any finite set of graphs, a graph is -subgraph-free if it does not contain any of as a subgraph. In recent work…
Treewidth is NP-Complete on Cubic Graphs (and related results)
Hans L. Bodlaender, Édouard Bonnet, Lars Jaffke +6
In this paper, we give a very simple proof that Treewidth is NP-complete; this proof also shows NP-completeness on the class of co-bipartite graphs. We then improve the result by B…
Complexity Framework for Forbidden Subgraphs II: Edge Subdivision and the "H"-graphs
Vadim Lozin, Barnaby Martin, Sukanya Pandey +4
For a fixed set of graphs, a graph is -subgraph-free if does not contain any as a (not necessarily induced) subgraph. A recently propo…
Complexity Framework For Forbidden Subgraphs I: The Framework
Matthew Johnson, Barnaby Martin, Jelle J. Oostveen +4
For any particular class of graphs, algorithms for computational problems restricted to the class often rely on structural properties that depend on the specific problem at hand. T…
Edge Multiway Cut and Node Multiway Cut are NP-complete on subcubic graphs
Matthew Johnson, Barnaby Martin, Siani Smith +3
We show that Edge Multiway Cut (also called Multiterminal Cut) and Node Multiway Cut are NP-complete on graphs of maximum degree (also known as subcubic graphs). This improves…
Role Coloring Bipartite Graphs
Sukanya Pandey, Vibha Sahlot
A k-role coloring of a graph G is an assignment of k colors to the vertices of G such that if any two vertices are assigned the same color, then their neighborhood are assigned the…