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math.CO2025
Small hitting sets for longest paths and cycles
Sergey Norin, Raphael Steiner, Stephan Thomassé +1
Motivated by an old question of Gallai (1966) on the intersection of longest paths in a graph and the well-known conjectures of Lovász (1969) and Thomassen (1978) on the maximum le…
math.CO2025
Defective coloring of blowups
Sergey Norin, Raphael Steiner
Given a graph and an integer , its -defective chromatic number is the smallest size of a partition of the vertices into parts inducing subgraphs with maximu…