For targets with a Gaussian lower bound, every kernel whose Fourier symbol decays quadratically yields a Stein-log-Sobolev inequality and exponential KL decay for the continuous SVGD flow.
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The Stein-log-Sobolev inequality and the exponential rate of convergence for the continuous Stein variational gradient descent method
For targets with a Gaussian lower bound, every kernel whose Fourier symbol decays quadratically yields a Stein-log-Sobolev inequality and exponential KL decay for the continuous SVGD flow.