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arXiv 0901.3978math.APmath.FA
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非线性导纳连续方程与广义位移凸性

Nonlinear mobility continuity equations and generalized displacement convexity

José Antonio Carrillo, Stefano Lisini, Giuseppe Savaré, Dejan Slepčev

摘要:

我们考虑的几何空间的Borel措施赋予的距离,是由广义的动态制定的Wasserstein距离凹,非线性流动性。我们调查的能源景观的内部,潜在的,和相互作用的能量。对于内能,我们给出了测地凸的一个显式充分条件,推广了McCann的条件。我们采取欧拉方法,不需要全球的信息测地线。作为副产品,我们得到的存在性,稳定性和压缩结果的半群通过解决齐次Neumann边值问题的非线性扩散方程在凸有界区域。对于势能和相互作用能,我们提出了一个非严格的论证,表明它们不是位移势能。

英文摘要:

We consider the geometry of the space of Borel measures endowed with a distance that is defined by generalizing the dynamical formulation of the Wasserstein distance to concave, nonlinear mobilities. We investigate the energy landscape of internal, potential, and interaction energies. For the internal energy, we give an explicit sufficient condition for geodesic convexity which generalizes the condition of McCann. We take an eulerian approach that does not require global information on the geodesics. As by-product, we obtain existence, stability, and contraction results for the semigroup obtained by solving the homogeneous Neumann boundary value problem for a nonlinear diffusion equation in a convex bounded domain. For the potential energy and the interaction energy, we present a non-rigorous argument indicating that they are not displacement semiconvex.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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