Some remarks about the -Dirichlet integral
We discuss variational problems for the -Dirichlet integral, non integer, for maps between manifolds, illustrating the role played by the geometry of the target manifold in their weak formulation.
Some remarks and applications of an extension of a lemma of Ky Fan
Some remarks on almost-positivity of 's
Per una classe di operatori pseudodifferenziali a caratteristiche multiple vengono date condizioni necessarie e sufficienti per la validità di stime dal basso «ottimali»
Some Remarks on Analytic Foliations and Analytic Branched Coverings.
Some Remarks on Dirac Structures and Poisson Reductions
Dirac structures are characterized in terms of their characteristic pairs defined in this note and then Poisson reductions are discussed from the point of view of Dirac structures.
Some remarks on foliated S1 bundles.
Some remarks on -actions with sections
Some remarks on gradient estimates for heat kernels.
Some remarks on holomorphic extension in infinite dimensions
In finite-dimensional complex analysis, the extension of holomorphic maps has been investigated by many authors. In recent years some authors have considered this problem in the infinite-dimensional case. The aim of the present note is to study the extension of holomorphic maps with values in some Banach complex manifolds.
Some remarks on Koszul algebras and quantum groups
The category of quadratic algebras is endowed with a tensor structure. This allows us to construct a class of Hopf algebras studied recently under the name of quantum (semi) groups.
Some remarks on Lie flows.
The first part of this paper is concerned with geometrical and cohomological properties of Lie flows on compact manifolds. Relations between these properties and the Euler class of the flow are given.The second part deals with 3-codimensional Lie flows. Using the classification of 3-dimensional Lie algebras we give cohomological obstructions for a compact manifold admits a Lie flow transversely modeled on a given Lie algebra.
Some remarks on the automorphism group of a compact group action
Some remarks on the boundary regularity for minima of variational problems with obstacles.
Some remarks on the cohomology of the Poisson algebra
Some remarks on the discrete Morse-Smale characteristic.
Some remarks on the heat flow for functions and forms.
Some remarks on the index theorem approach to anomalies
Some remarks on the weak maximum principle.
We obtain a maximum principle at infinity for solutions of a class of nonlinear singular elliptic differential inequalities on Riemannian manifolds under the sole geometrical assumptions of volume growth conditions. In the case of the Laplace-Beltrami operator we relate our results to stochastic completeness and parabolicity of the manifold.
Some remarks on time-dependent evolution systems in the hyperbolic case
Some Remarks on Transmutation, Scattering Theory, and Special Functions.