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cs.DS2025
On Integer Programs That Look Like Paths
Marcin Briański, Alexandra Lassota, Kristýna Pekárková +2
Solving integer programs of the form is, in general, $…
cs.GT2025
Identifying Imperfect Clones in Elections
Piotr Faliszewski, Lukasz Janeczko, Grzegorz Lisowski +2
A perfect clone in an ordinal election (i.e., an election where the voters rank the candidates in a strict linear order) is a set of candidates that each voter ranks consecutively.…
math.CO2025
Obstructions and dualities for matroid depth parameters
Jakub Gajarský, Kristýna Pekárková, Michał Pilipczuk
Contraction-depth is considered to be one of the analogues of graph tree-depth in the matroid setting. In this paper, we investigate structural properties of contraction-de…