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has been cited by the following article:

• TITLE: Reinforcing a Matroid to Have k Disjoint Bases

  AUTHORS: Hong-Jian Lai, Ping Li, Yanting Liang, Jinquan Xu

  KEYWORDS: Disjoint Bases, Edge-Disjoint Spanning Trees, Spanning Tree Packing Numbers, Strength,

  JOURNAL NAME: Applied Mathematics, Vol.1 No.3, September 29, 2010

  ABSTRACT: Let denote the maximum number of disjoint bases in a matroid . For a connected graph , let , where is the cycle matroid of . The well-known spanning tree packing theorem of Nash-Williams and Tutte characterizes graphs with . Edmonds generalizes this theorem to matroids. In [1] and [2], for a matroid with , elements with the property that have been characterized in terms of matroid invariants such as strength and -partitions. In this paper, we consider matroids with , and determine the minimum of , where is a matroid that contains as a restriction with both and . This minimum is expressed as a function of certain invariants of , as well as a min-max formula. These are applied to imply former results of Haas [3] and of Liu et al. [4].