Title
Sprague-Grundy Function of Matroids and Related Hypergraphs.
Abstract
We consider a generalization of the classical game of Nim called hypergraph Nim. Given a hypergraph H on the ground set V={1,…,n} of n piles of stones, two players alternate in choosing a hyperedge H∈H and strictly decreasing all piles i∈H. The player who makes the last move is the winner. In this paper we give an explicit formula that describes the Sprague-Grundy function of hypergraph Nim for several classes of hypergraphs. In particular we characterize all 2-uniform hypergraphs (that is graphs) and all matroids for which the formula works. We show that all self-dual matroids are included in this class.
Year
DOI
Venue
2019
10.1016/j.tcs.2019.09.041
Theoretical Computer Science
Keywords
Field
DocType
Matroid,Self-dual matroid,Impartial game,Sprague-Grundy function,Nim,Hypergraph Nim,JM hypergraph
Matroid,Graph,Discrete mathematics,Combinatorics,Hypergraph,Constraint graph,Mathematics
Journal
Volume
ISSN
Citations 
799
0304-3975
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Endre Boros11779155.63
Vladimir Gurvich268868.89
Nhan Bao Ho383.74
Kazuhisa Makino41088102.74
Peter Mursic500.68