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» The edge-flipping group of a graph
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JCT
2008
71views more  JCT 2008»
13 years 7 months ago
Primitive decompositions of Johnson graphs
A transitive decomposition of a graph is a partition of the edge set together with a group of automorphisms which transitively permutes the parts. In this paper we determine all t...
Alice Devillers, Michael Giudici, Cai Heng Li, Che...
CPC
2006
92views more  CPC 2006»
13 years 7 months ago
Waiting for a Bat to Fly By (in Polynomial Time)
We observe returns of a simple random walk on a finite graph to a fixed node, and would like to infer properties of the graph, in particular properties of the spectrum of the trans...
Itai Benjamini, Gady Kozma, László L...
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
ENDM
2007
114views more  ENDM 2007»
13 years 7 months ago
The Connectivity of addition Cayley graphs
For any finite abelian group G and any subset S ⊆ G, we determine the connectivity of the addition Cayley graph induced by S on G. Moreover, we show that if this graph is not c...
David J. Grynkiewicz, Vsevolod F. Lev, Oriol Serra
CRYPTO
2007
Springer
133views Cryptology» more  CRYPTO 2007»
14 years 1 months ago
On Secure Multi-party Computation in Black-Box Groups
Abstract. We study the natural problem of secure n-party computation (in the passive, computationally unbounded attack model) of the n-product function fG(x1, . . . , xn) = x1 · x...
Yvo Desmedt, Josef Pieprzyk, Ron Steinfeld, Huaxio...