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gr-qc2011
Proliferation of the Phoenix Universe
Jun Zhang
Cyclic cosmology, in which the universe will experience alternating periods of gravitational collapse and expansion, provides an interesting understanding of the early universe and…
math.DS2011
Existence and regularity of weak solutions to a model for coarsening in molecular beam epitaxy
Jun Zhang, Peicheng Zhu
Taking into account the occurrence of a zero of the surface diffusion current and the requirement of the Ehrlich-Schwoebel effect, Siegert et al \cite{Siegert94} formulate a model…