# Bled'11 - 7th Slovenian International Conference on Graph Theory

19-25 June 2011
Bled, Slovenia
Europe/Ljubljana timezone
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# On isomorphisms of cyclic Haar graphs

Presented by Mr. Sergio Hiroki KOIKE
Type: Oral presentation
Track: Cayley Graphs

## Content

For a subset $A$ of $\Z_n,$ the cyclic Haar graph $H(n,A)$ is the graph with vertex set $\Z_n^+ \cup \Z_n^-,$ and edge set $\{ \{x^+,y^-\} : x,y \in \Z_n, y - x \in A \}$. In this talk we describe the isomorphism classes of these graphs in the case when $|A| \le 4$. As an application, we obtain a closed form solution to the enumeration problem of cyclic 3-configurations.

## Place

Location: Bled, Slovenia
Address: Best Western Hotel Kompas Bled

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