Centre for Discrete and Applicable Mathematics
	CDAM Research Report, LSE-CDAM-2003-08 May 2003

Abstract

Wheel structures of the Orthogonal Latin Squares (OLS) polytope (P_I ) are presented in [2]. The current work focuses on the families of valid inequalities arising from wheels and proves that certain among them are facet-defining for P_I . For two of these families we provide efficient separation procedures. We also present results regarding odd-hole inequalities, which essentially form a larger class encompassing that of wheel inequalities.

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