The Space of Spaces: Curvature Bounds and Gradient Flows on the Space ofric Measure Spaces Peter Lunt Drawing on previously unexamined resources

Drawing on previously unexamined resources

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The Space of Spaces: Curvature Bounds and Gradient Flows on the Space ofric Measure Spaces Peter Lunt Drawing on previously unexamined resourcesEquipped with the L2,q distortion distance 2,q, the space 2,q of all metric measure spaces (X, ?, ) is proven to have nonnegative curvature in the sense of Alexandrov. Geodesics and tangent spaces are characterized in detail. Moreover, classes of semiconvex functionals and their gradient flows on ?2,q are presented.