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Large k-preserving sets in infinite graphs

✍ Scribed by Andreas Huck; Frank Niedermeyer; Saharon Shelah


Publisher
John Wiley and Sons
Year
1994
Tongue
English
Weight
715 KB
Volume
18
Category
Article
ISSN
0364-9024

No coin nor oath required. For personal study only.

✦ Synopsis


Abstract

Let K be a cardinal. If K Ο‡~0~, define K:= K. Otherwise, let K := K + 1. We prove a conjecture of Mader: Every infinite K‐connected graph G = (V, E) contains a set S βŠ† V with |S| = |V| such that G/S is K‐connected for all SβŠ† S.


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