We study time-dependent compactification of extra dimensions. We assume that the spacetime is spatially homogeneous, and solve the vacuum Einstein equations without cosmological constant in more than ...

In the early 1960s, various scientists, including Marcus, Hush, and Gerischer, started to develop modern theories of electron transfer between molecules in homogeneous solutions and at electrodes. In ...

Abstract: Many sparse representation problems boil down to address the underdetermined systems of linear equations subject to solution sparsity restriction. Many approaches have been proposed such as ...

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