On exponents of p-adic differential modules.
On first-order differential operators with Bohr-Neugebauer type property.
On -quasi-derivatives for solutions of perturbed general quasi-differential equations
This paper is concerned with square integrable quasi-derivatives for any solution of a general quasi-differential equation of th order with complex coefficients , provided that all th quasi-derivatives of solutions of and all solutions of its normal adjoint are in and under suitable conditions on the function .
On local -times integrated -semigroups.
On nonautonomous second-order differential equations on Banach space.
On optimal regularity in evolution equations
Using interpolation techniques we prove an optimal regularity theorem for the convolution , where is a strongly continuous semigroup in general Banach space. In the case of abstract parabolic problems – that is, when is an analytic semigroup – it lets us recover in a unified way previous regularity results. It may be applied also to some non analytic semigroups, such as the realization of the Ornstein-Uhlenbeck semigroup in , , in which case it yields new optimal regularity results in fractional...
On periodic solutions of abstract differential equations.
On products of non-commuting sectorial operators
On relatively bounded perturbations of linear -semigroups
On scalar type spectral operators, infinite differentiable and Gevrey ultradifferentiable -semigroups.
On Second Order Linear Differential Equations with Few Transcendental Solutions.
On second order of accuracy difference scheme of the approximate solution of nonlocal elliptic-parabolic problems.
On some non-local problems of the theory of elasticity.
On the abstract Cauchy problem in the case of constant domains
Si studiano esistenza, unicità e regolarità delle soluzioni strette, classiche e forti dell'equazione di evoluzione non autonoma con il dato iniziale , in uno spazio di Banach . Gli operatori sono generatori infinitesimali di semi-gruppi analitici ed hanno dominio indipendente da e non necessariamente denso in . Si danno condizioni necessarie e sufficienti per l'esistenza e la regolarità hölderiana della soluzione e della sua derivata.
On the abstract subordinated exit equation.
On the almost periodic solutions of differential equations on Hilbert spaces.
On the asymptotic behaviour of a solution of a differential equation in a Hilbert space
On the Bohr transform of almost-periodic solutions for some differential equations in abstract spaces.
On the Closedness of the Sum of Two Closed Operators.
On the ellipticity and solvability of an abstract second-order differential equation.