54 citations · 152 across the 16 of their papers we have counts for
6 papers · 1 filter
Weighted Upper Edge Cover: Complexity and Approximability
Kaveh Khoshkhah, Mehdi Khosravian Ghadikolaei, Jerome Monnot +1
Optimization problems consist of either maximizing or minimizing an objective function. Instead of looking for a maximum solution (resp. minimum solution), one can find a minimum m…
Extension of vertex cover and independent set in some classes of graphs and generalizations
Katrin Casel, Henning Fernau, Mehdi Khosravian Ghadikolaei +2
We consider extension variants of the classical graph problems Vertex Cover and Independent Set. Given a graph and a vertex set , it is asked if there exis…
On the Complexity of Solution Extension of Optimization Problems
Katrin Casel, Henning Fernau, Mehdi Khosravian Ghadikolaei +2
The question if a given partial solution to a problem can be extended reasonably occurs in many algorithmic approaches for optimization problems. For instance, when enumerating min…
Parameterized Orientable Deletion
Tesshu Hanaka, Ioannis Katsikarelis, Michael Lampis +2
A graph is -orientable if its edges can be oriented so that the maximum in-degree of the resulting digraph is at most . -orientability is a well-studied concept with close…
Token Sliding on Split Graphs
Rémy Belmonte, Eun Jung Kim, Michael Lampis +3
We consider the complexity of the Independent Set Reconfiguration problem under the Token Sliding rule. In this problem we are given two independent sets of a graph and are asked i…
Covering with Clubs: Complexity and Approximability
Riccardo Dondi, Giancarlo Mauri, Florian Sikora +1
Finding cohesive subgraphs in a network is a well-known problem in graph theory. Several alternative formulations of cohesive subgraph have been proposed, a notable example being $…