首页 | 本学科首页   官方微博 | 高级检索  
     检索      


On the intersection of infinite matroids
Authors:Elad Aigner-Horev  Johannes Carmesin  Jan-Oliver Fröhlich
Institution:1. Ariel University, Israel;2. University of Cambridge, United Kingdom;3. University of Hamburg, Germany
Abstract:We show that the infinite matroid intersection conjecture of Nash-Williams implies the infinite Menger theorem proved by Aharoni and Berger in 2009.We prove that this conjecture is true whenever one matroid is nearly finitary and the second is the dual of a nearly finitary matroid, where the nearly finitary matroids form a superclass of the finitary matroids.In particular, this proves the infinite matroid intersection conjecture for finite-cycle matroids of 2-connected, locally finite graphs with only a finite number of vertex-disjoint rays.
Keywords:Infinite matroids  Infinite graphs  Matroid intersection
本文献已被 ScienceDirect 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号