On the rank functions of $\mathcal{H}$-matroids

Authors

  • Yoshio Sano Division of Information Engineering, Faculty of Engineering, Information and Systems, University of Tsukuba, Japan ROR

Keywords:

Matroid, H-Matroid, Simplicial complex, Rank function

Abstract

The notion of $\mathcal{H}$-matroids was introduced by U. Faigle and S. Fujishige in 2009 as a general model for matroids and the greedy algorithm. They gave a characterization of $\mathcal{H}$-matroids by the greedy algorithm. In this note, we give a characterization of some $\mathcal{H}$-matroids by rank functions.

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References

U. Faigle and S. Fujishige, A general model for matroids and the greedy algorithm, Math. Program. Ser. A 119(2) (2009) 353-369.

S. Fujishige, Submodular Functions and Optimization, Annals of Discrete Mathematics 58, Elsevier, Amsterdam (2005).

S. Fujishige, G. A. Koshevoy, and Y. Sano, Matroids on convex geometries (cg-matroids), Discrete Math. 307(15) (2007) 1936-1950.

B. Korte, L. Lovász, and R. Schrader, Greedoids, Algorithms and Combinatorics 4, Springer-Verlag, Berlin (1991).

J. Oxley, Matroid Theory, Oxford Graduate Texts in Mathematics 3, Oxford University Press, Oxford (1992).

Y. Sano, Rank functions of strict cg-matroids, Discrete Math. 308(20) (2008) 4734-4744.

Y. Sano, Matroids on convex geometries: Subclasses, operations, and optimization, Publ. Res. Inst. Math. Sci. 47(3) (2011) 671-703.

A. Schrijver, Combinatorial Optimization: Polyhedra and Efficiency, Algorithms and Combinatorics 24, Springer-Verlag, Berlin (2003).

D. J. A. Welsh, Matroid Theory, L.M.S. Monographs 8, Academic Press, London (1976).

H. Whitney, On the abstract properties of linear dependence, Amer. J. Math. 57(3) (1935) 509-533.

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Published

2016-01-15

How to Cite

Sano, Y. (2016). On the rank functions of $\mathcal{H}$-matroids. Journal of Algebra Combinatorics Discrete Structures and Applications, 3(1), 7–11. Retrieved from https://jacodesmath.com/index.php/jacodesmath/article/view/25

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