In this paper, we introduce the notion of Jacobi-type vector fields on Riemannian manifolds, which is a generalization of the Jacobi field along a geodesic. We study Ricci solitons with positive Ricci ...
This is a preview. Log in through your library . Abstract In this paper we study the local Hölder-regularity of weak solutions to Lu + Vu = 0 where L is a Hörmander hypoelliptic operator and the ...
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