04/02/2013 - 12:15pm

04/02/2013 - 1:10pm

Speaker:

Wai Yan Pong (California State University Dominguez Hills)

Abstract:

A graph is locally finite if every vertex of it has finitely many neighbors. A connected graph G is connectedly homogeneous (or z-homogeneous) if any isomorphism between finite connected induced subgraphs of G extends to an automorphism of G. We classified the class of locally finite z-homogeneous graphs and identified their first order theories by showing that they are precisely the class of quantifier-eliminable graphs in the signature of distance predicates. This is a joint work with Shawn Hedman.

Where:

Millikan 208 (Pomona College)

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