A classical theorem of Birkhoff asserts that there exists an entire function f such that the sequence of function {/(z + ...

We characterize, using commuting zero-flux homologies, those volumepreserving vector fields on a 3-manifold that are ...

Recently, Frigon proved that, for weakly contractive maps, the property of having a fixed point is invariant by a certain ...

We give a criterion of weak compactness for the operators on the Morse-Transue space MΨ , the subspace of the Orlicz space LΨ generated by L∞.

In [13] T. Zamfirescu, Fixed point theorems in metric spaces, Arch. Math. 23 (1972), 292–298. Zamfirescu gave a fixed ...

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

An algebra of bounded linear operators on a Banach space is said to be strongly compact if its unit ball is precompact ...

We show that if the Banach-Mazur distance between an n-dimensional normed space X and ℓ n∞ is at most 3/2, then there exist ...

Given any quasi-Banach function space X over Rn it is defined an index αX that coincides with the upper Boyd index αX when ...

Karlsson and Margulis [A. Karlsson, G. Margulis, A multiplicative ergodic theorem and nonpositively curved spaces. Commun. ...