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JOURNALS // Proceedings of the Yerevan State University, series Physical and Mathematical Sciences // Archive

Proceedings of the YSU, Physical and Mathematical Sciences, 1985 Issue 1, Pages 33–37 (Mi uzeru1040)

Mathematics

On imperfect critical graphs with incomplete critical component

A. S. Markosyan

Yerevan State University

Abstract: In this paper, we present two assertions that are collectively equivalent to the strong conjecture about imperfect graphs [1]. The article is devoted to the study of one of the statements. The previously known structure of a critical graph containing an incomplete critical component is given [2]. In conclusion, two conditions are found, each of which is necessary and sufficient for a critical graph containing an incomplete component to be an odd cycle without diagonals or its complement.

UDC: 519.1

Received: 27.10.1984
Accepted: 23.04.1985



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