A note on periodic solutions of second order nonautonomous singular coupled systems.
A note on Picard iterates of nonexpansive mappings
Let X be a Banach space, C a closed subset of X, and T:C → C a nonexpansive mapping. It has recently been shown that if X is reflexive and locally uniformly convex and if the fixed point set F(T) of T has nonempty interior then the Picard iterates of the mapping T always converge to a point of F(T). In this paper it is shown that if T is assumed to be asymptotically regular, this condition can be weakened much further. Finally, some observations are made about the geometric conditions imposed.
A note on p-nuclear operators.
A note on preservation of spectra for two given operators
We study the relationships between the spectra derived from Fredholm theory corresponding to two given bounded linear operators acting on the same space. The main goal of this paper is to obtain sufficient conditions for which the spectra derived from Fredholm theory and other parts of the spectra corresponding to two given operators are preserved. As an application of our results, we give conditions for which the above mentioned spectra corresponding to two multiplication operators acting on the...
A note on probabilistic representations of operator semigroups.
A note on properties that imply the fixed point property.
A note on quasi-monotone operators.
A note on Riesz elements in -algebras.
A note on semicharacters
A note on singular and degenerate abstract equations
Si considera l’equazione astratta , dove
A note on singular points of convex functions in Banach spaces
A note on solutions of semilinear equations at resonance in a cone
A connection between the Landesman-Lazer condition and the solvability of the equation Lx = N(x) in a cone with a noninvertible linear operator L is studied. The result is based on the abstract framework from [5], applied to the existence of periodic solutions of ordinary differential equations, and compared with theorems by Santanilla (see [7]).
A note on some fixed point results.
A note on “Some results on multi-valued weakly Jungck mappings in b-metric space”
The proofs of Theorems 2.1, 2.2 and 2.3 from [Olatinwo M.O., Some results on multi-valued weakly jungck mappings in b-metric space, Cent. Eur. J. Math., 2008, 6(4), 610–621] base on faulty evaluations. We give here correct but weaker versions of these theorems.
A note on spectra of weighted composition operators on weighted Banach spaces of holomorphic functions.
A Note On Spectral And Prespectral Operators.
A note on stability for linear partial differential equations
A note on stability properties of integrated semigroups
A note on strictly cyclic shifts on .
A note on strong convergence of a modified Halpern's iteration for nonexpansive mappings.