Zig-zag facial total-coloring of plane graphs
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wersja wydawnicza
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pp. 819-827
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Bibliogr. 826.
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Abstract
In this paper we introduce the concept of zig-zag facial total-coloring of plane graphs. We obtain lower and upper bounds for the minimum number of colors which is necessary for such a coloring. Moreover, we give several sharpness examples and formulate some open problems.