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On the point-core of a graph

โœ Scribed by Frank Harary; Michael D. Plummer


Publisher
Springer-Verlag
Year
1966
Tongue
French
Weight
245 KB
Volume
94
Category
Article
ISSN
0025-5874

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## Abstract In this paper, we study the critical pointโ€arboricity graphs. We prove two lower bounds for the number of edges of __k__โ€critical pointโ€arboricity graphs. A theorem of Kronk is extended by proving that the pointโ€arboricity of a graph __G__ embedded on a surface __S__ with Euler genus __