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We study two typ es of Neumann problem related to Capillary problem and to the evolution of graphs under mean curvature flow in Riemannian manifolds endowed with a Killing vector field. In particular, we prove the existence ...

In this work, we will use the Mountain Pass Theorem, Ekeland’s Variational Principle, the Concentration-Compactness Principle, the Brezis & Nirenberg Method, Penalization Method and some properties involving Nehari ...

In this thesis, we initially established a characterization theorem concerning to complete linear Weingarten spacelike hypersurfaces immersed in a locally symmetric Lorentz space, whose sectional curvature is supposed ...

In this work we study some problems related to the geometry of Riemannian hypersurfaces immersed in semi-Riemannian manifolds (with index zero or one) equipped with a density function and that can be modeled by a certain ...

In this thesis we study certain degenerations/specializations of the generic square matrix over a eld k of characteristic zero along its main related structures, such the determinant of the matrix, the ideal generated ...

In this work, we will study a class of integro-di erential operators. We will show some relevant results for the studied theory and we will apply, these results, in the study of problems involving the integro-di erential ...