论文标题

良好的测量学满足及时的曲率维度条件

Good geodesics satisfying the timelike curvature-dimension condition

论文作者

Braun, Mathias

论文摘要

令$(m,\ mathsf {d},\ mathfrak {m},\ ll,\ leq,τ)$是因果封闭,$ \ mathscr {k} $ - 全球夸张,定期测量的lorentzian lorentzian geodesic space满足弱的时脉度曲率维度约束条件$ \ smash {\ mathrm {wtcd} _p^e(k,n)} $在Cavalletti和Mondino的意义上。我们证明了$ m $上的概率度量的存在,这些概率度量满足了定义$ \ smash {\ mathrm {wtcd} _p^e(k,n)} $的entopic semiconvexity不平等,并且其密度与$ \ nathfrak {m} $是附加的$ l^fiftty $ l^。除了任何非分支假设外,这都具有。我们还讨论了定时度量收缩属性下的类似结果。

Let $(M,\mathsf{d},\mathfrak{m},\ll,\leq,τ)$ be a causally closed, $\mathscr{K}$-globally hyperbolic, regular measured Lorentzian geodesic space satisfying the weak timelike curvature-dimension condition $\smash{\mathrm{wTCD}_p^e(K,N)}$ 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 $\smash{\mathrm{wTCD}_p^e(K,N)}$ and whose densities with respect to $\mathfrak{m}$ are additionally uniformly $L^\infty$ in time. This holds apart from any nonbranching assumption. We also discuss similar results under the timelike measure-contraction property.

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