Titlebook: Recent Advances in Mathematical Analysis; Celebrating the 70th Anna Maria Candela,Mirella Cappelletti Montano,Eli Book 2023 The Editor(s) (

Mercurial

FELON

,A Strong Variant of Weyl’s Theorem Under Functional Calculus and Perturbations,The aim of this paper is the study of a new and strong variant (.) of the classical Weyl’s theorem, for operators defined on Banach spaces, under functional calculus. Furthermore, we give some results on the permanence of (.) theorem under commuting perturbations, as algebraic or finite-dimensional commuting perturbations.

Astigmatism

瑪瑙

釘牢

A Degenerate Operator in Non Divergence Form,In this paper we consider a fourth order operator in non divergence form .?:=?., where . is a function that degenerates somewhere in the interval. We prove that the operator generates an analytic semigroup, under suitable assumptions on the function .. We extend these results to a general operator .?:=?..

雀斑

Barrister

Albumin

On Oscillatory Behavior of Third Order Half-Linear Difference Equations,This paper deals with the oscillatory behavior of third order half-linear difference equations. We present new oscillation criteria, which improve, extend and simplify existing ones in the literature. The results are illustrated by some examples.

Contend

Anna Maria Candela,Mirella Cappelletti Montano,EliCovers some of the most innovative topics in Mathematical Analysis.Includes papers by respected researchers in the field of Mathematical Analysis.Promotes the interchange of ideas among researches in

opinionated

978-3-031-20023-6The Editor(s) (if applicable) and The Author(s), under exclusive license to Springer Nature Switzerl