The purpose of this paper is to give a necessary and sufñcient condition to define a category measure on a Baire topological space. In the last section we give some examples of spaacs in these conditions.

A useful property of the Brouwer degree relates the degree of a composition of maps to the degree of each map. This property, ...

Let 1 < p < ∞, and let w, v be two non–negative functions. We give a sufficient condition on w, v for which the general ...

Let {ank}, n, k ∈ N be an array of real constants, and let {Xn} be a sequence of random variables. The concept of ...

For a Calderón-Zygmund singular integral operator T, we show that the following weighted inequality holds Z Rn|T f(y)|p ...

We consider a modi cation of the gamma distribution by adding a discrete measure supported in the point x = 0. For large ...

We consider a modi cation of moment functionals for the Hahn classical polynomials of a discrete variable by adding two ...

We prove endpoint estimates for commutatotrs of singular integrals with BMO functions. We first show that they satisfy ...