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05/18/2023
Maximal workload, minimal workload, maximal workload difference: optimizing all criteria at once
In a simple model of assigning workers to tasks, every solution that min...
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07/08/2021
Algorithmic aspects of quasi-kernels
In a digraph, a quasi-kernel is a subset of vertices that is independent...
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06/04/2021
Envy-free division of multi-layered cakes
We study the problem of dividing a multi-layered cake among heterogeneou...
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03/18/2020
Colorings of complements of line graphs
Our purpose is to show that complements of line graphs enjoy nice colori...
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04/02/2018
Envy-free divisions of a partially burnt cake
Consider n players having preferences over the connected pieces of a cak...
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03/05/2018
Integer and Mixed Integer Tverberg Numbers
We show that the Tverberg number of Z^2 is 4m-3. We also improve the upp...
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01/07/2018
Perfect graphs with polynomially computable kernels
In a directed graph, a kernel is a subset of vertices that is both stabl...
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01/06/2018
