Good geodesics satisfying the timelike curvature-dimension condition

被引:4
|
作者
Braun, Mathias [1 ]
机构
[1] Fields Inst Res Math Sci, 222 Coll St, Toronto, ON M5T 3J1, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
Timelike geodesics; Timelike curvature-dimension; condition; Strong energy condition; Lorentzian pre-length spaces; METRIC-MEASURE-SPACES; RICCI CURVATURE; GRAVITATIONAL COLLAPSE; SINGULARITIES; INEQUALITY; TRANSPORT; ENTROPY;
D O I
10.1016/j.na.2022.113205
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
Let (M, d, m, MUCH LESS-THAN, <=, tau) be a causally closed, K-globally hyperbolic, regular measured Lorentzian geodesic space satisfying the weak timelike curvature-dimension condi-tion wTCDep(K, N) in the sense of Cavalletti and Mondino. We prove the existence of geodesics of probability measures on M which satisfy the entropic semiconvexity inequality defining wTCDep(K, N) and whose densities with respect to m are additionally uniformly L infinity in time. This holds apart from any nonbranching assumption. We also discuss similar results under the timelike measure-contraction property.(c) 2022 Elsevier Ltd. All rights reserved.
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页数:30
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