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A sufficient condition for the existence of an anti-directed 2-factor in a directed graph
sufficient condition existence anti-directed 2-factor
2011/1/18
Let D be a directed graph with vertex set V and order n. An anti-directed (hamiltonian) cycle H in D is a (hamiltonian) cycle in the graph underlying D such that no pair of consecutive arcs in H form ...
Blow-up phenomena and global existence for a periodic two-component Hunter-Saxton system
A periodic two-component Hunter-Saxton system blow-up scenario blow-up
2011/2/28
This paper is concerned with blow-up phenomena and global existence for a periodic two-component Hunter-Saxton system. We first derive precise blow-up scenarios for strong solutions to the system. The...
We present a family of Eulerian posets which does not have any R-labeling. The result uses a
structure theorem for R-labelings of the butterfly poset.