Finding the Number of Cycle Egamorphisms

Paichayon Sirisathianwatthana, Nirutt Pipattanajinda


A mapping f from graph G to graph H is called an egamorphism (or weak homomorphism, contraction) from G to H, if f preserves or contracts the edges. This paper is to find the number of egamorphism from Cm to Cn, where m, n ∈ Z+ and m, n > 2.

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The Thai Journal of Mathematics organized and supported by The Mathematical Association of Thailand and Thailand Research Council and the Center for Promotion of Mathematical Research of Thailand (CEPMART).

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|ISSN 1686-0209|