Unbounded B-Fredholm operators on Hilbert spaces

(ii) => (iii) Since isotopies preserve left division, we may assurne that A has a left unit, and then the subspace P of bounded linear operators en the normed space of A given by

The main goal of this paper is establishing an analogous of Theorem 1.1 for Fredholm Operators of index zero within the context of the degree for Fredholm maps of

Our study of functional operators with shift in the weighted H¨older spaces has an additional motivation: on modeling systems with renewable resources, equations with shift arise in

The obtained results gener- alize those for generalized projections on Hilbert spaces in [Hong-Ke Du, Yuan Li, The spectral characterization of generalized projections, Linear

Elona Agora (Instituto Argentino de Matem´ atica “Alberto P. Calder´ on”) Jorge Antezana (National University of La Plata and Instituto Argentino de Matem´ atica “Alberto P..

A similar situation arises if we look at a special class of lattice homomorphisms between free Banach lattices: the ones induced by bounded linear operators between the

The characterizations of the class of Lyapunov domains that we prove are in terms of the boundedness properties of certain classes of singular integral operators acting on

The main results of this section are Theorem 2.1, where we characterize m-variable weighted shifts (equivalently, multiplication m-tuples), which are spherical, and Theorem 2.5,