Minimal Elements of the Causal Boundary with Applications to Spacetime Splitting
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DOI: 10.1007/s00009-025-02832-3
Abstract: Geroch et al. (Proc R Soc Lond Ser A 327:545–567, 1972) introduced what is now called the causal boundary of a spacetime. This boundary is constructed out of Terminal Indecomposable Past sets (TIPs) and their… read more here.
Keywords: spacetime splitting; elements causal; minimal elements; causal boundary ... See more keywords
A novel algorithm for the vertex cover problem based on minimal elements of discernibility matrix
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DOI: 10.1007/s13042-019-00933-6
Abstract: Minimal vertex cover problem (MVCP) is a famous important NP-hard problem in graph theory. It has been reported that MVCP is equivalent to finding reducts of information systems in rough sets theory. This relationship motivates… read more here.
Keywords: cover problem; minimal elements; vertex cover; discernibility matrix ... See more keywords