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math.CO2023
Comparing Width Parameters on Graph Classes
Nick Brettell, Andrea Munaro, Daniël Paulusma +1
We study how the relationship between non-equivalent width parameters changes once we restrict to some special graph class. As width parameters, we consider treewidth, clique-width…
cs.DS2023
Polynomial-Time Approximation Schemes for Independent Packing Problems on Fractionally Tree-Independence-Number-Fragile Graphs
Esther Galby, Andrea Munaro, Shizhou Yang
We investigate a relaxation of the notion of treewidth-fragility, namely tree-independence-number-fragility. In particular, we obtain polynomial-time approximation schemes for inde…