ArticleOriginal scientific text
Title
Forbidden-minor characterization for the class of cographic element splitting matroids
Authors 1, 2, 2
Affiliations
- Department of Mathematics, Government College of Engineering, Pune 411 005 India
- Department of Mathematics, University of Pune, Pune 411 007 India
Abstract
In this paper, we prove that an element splitting operation by every pair of elements on a cographic matroid yields a cographic matroid if and only if it has no minor isomorphic to M(K₄).
Keywords
binary matroid, graphic matroid, cographic matroid, minor
Bibliography
- S. Akkari and J. Oxley, Some local extremal connectivity results for matroids, Combinatorics, Probability and Computing 2 (1993) 367-384, doi: 10.1017/S0963548300000766.
- Y.M. Borse, K. Dalvi and M.M. Shikare, Excluded-minor characterization for the class of cographic splitting matroids, Ars Combin., to appear.
- K. Dalvi, Y.M. Borse and M.M. Shikare, Forbidden-minor characterization for the class of graphic element splitting matroids, Discuss. Math. Graph Theory 29 (2009) 629-644, doi: 10.7151/dmgt.1469.
- F. Harary, Graph Theory (Addison-Wesley, Reading, 1969).
- J.G. Oxley, Matroid Theory (Oxford University Press, Oxford, 1992).
- T.T. Raghunathan, M.M. Shikare and B.N. Waphare, Splitting in a binary matroid, Discrete Math. 184 (1998) 267-271, doi: 10.1016/S0012-365X(97)00202-1.
- M.M. Shikare and B.N. Waphare, Excluded-minors for the class of graphic splitting matroids, Ars Combin. 97 (2010) 111-127.