https://www.selleckchem.com/pr....oducts/pf-00835231.h
This paper studies the boundary behaviour of λ -polyharmonic functions for the simple random walk operator on a regular tree, where λ is complex and | λ | ρ , the ℓ 2 -spectral radius of the random walk. In particular, subject to normalisation by spherical, resp. polyspherical functions, Dirichlet and Riquier problems at infinity are solved, and a non-tangential Fatou theorem is proved.SARS-CoV-2 can spread by close contact through large droplet spray and indirect contact via contaminated objects. There is mounting evidence tha
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