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Search: authors:"Alexandru Popa"

3 papers found.
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Enumerating Cube Tilings

Cube tilings formed by \(n\)-dimensional \(4\mathbb Z ^n\)-periodic hypercubes with side \(2\) and integer coordinates are considered here. By representing the problem of finding such cube tilings within the framework of exact cover and using canonical augmentation, pairwise nonisomorphic 5-dimensional cube tilings are exhaustively enumerated in a constructive manner. There are...

The Use of a Pruned Modular Decomposition for Maximum Matching Algorithms on Some Graph Classes

We address the following general question: given a graph class C on which we can solve Maximum Matching in (quasi) linear time, does the same hold true for the class of graphs that can be modularly decomposed into C? As a way to answer this question for distance-hereditary graphs and some other superclasses of cographs, we study the combined effect of modular decomposition with a...

The b-Matching Problem in Distance-Hereditary Graphs and Beyond

We make progress on the fine-grained complexity of Maximum-Cardinality Matching on graphs of bounded clique-width. Quasi linear-time algorithms for this problem have been recently proposed for the important subclasses of bounded-treewidth graphs (Fomin et al., SODA'17) and graphs of bounded modular-width (Coudert et al., SODA'18). We present such algorithm for bounded split-width...