K-causal Maps and Causal Conditions on C-lorentzian Manifolds
نویسنده
چکیده
Using K-Causal relation introduced by Sorkin and Woolgar , we generalize results of Garcia-Parrado and Senovilla 7 on causal maps. We also introduce new concepts like K-future sets,K-reflecting and K-future distinguishing space-times, and prove some of their properties.This approach is simpler and more general as compared to traditional causal approach 2,3 and it has been used by Penrose et.al 4 in giving a new proof of positivity of mass theorem.
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