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ENDM
2007
89views more  ENDM 2007»
13 years 7 months ago
Homomorphisms and Polynomial Invariants of Graphs
This paper initiates a study of the connection between graph homomorphisms and the Tutte polynomial. This connection enables us to extend the study to other important polynomial i...
Delia Garijo, Jaroslav Nesetril, M. P. Revuelta
COMBINATORICA
2004
51views more  COMBINATORICA 2004»
13 years 7 months ago
Nowhere-Zero 4-Flows, Simultaneous Edge-Colorings, And Critical Partial Latin Squares
It is proved in this paper that every bipartite graphic sequence with the minimum degree 2 has a realization that admits a nowhere-zero 4-flow. This result implies a conjecture ...
Rong Luo, Wenan Zang, Cun-Quan Zhang
DAM
2002
78views more  DAM 2002»
13 years 7 months ago
Uniquely 2-list colorable graphs
A graph is said to be uniquely list colorable, if it admits a list assignment which induces a unique list coloring. We study uniquely list colorable graphs with a restriction on t...
Yashar Ganjali, Mohammad Ghebleh, Hossein Hajiabol...
SBP
2011
Springer
12 years 10 months ago
Consumer Search, Rationing Rules, and the Consequence for Competition
Abstract. Firms’ conjectures about demand are consequential in oligopoly games. Through agent-based modeling of consumers’ search for products, we can study the rationing of de...
Christopher S. Ruebeck
RSA
2010
94views more  RSA 2010»
13 years 5 months ago
Word maps and spectra of random graph lifts
We study here the spectra of random lifts of graphs. Let G be a finite connected graph, and let the infinite tree T be its universal cover space. If λ1 and ρ are the spectral ...
Nati Linial, Doron Puder