Search

Your search keyword '"Spadini, Marco"' showing total 11 results
Start Over Author "Spadini, Marco" Publication Year Range Last 3 years
11 results on '"Spadini, Marco"'

1. An introduction to topological degree in Euclidean spaces

Author

Benevieri, Pierluigi, Furi, Massimo, Pera, Maria Patrizia, and Spadini, Marco

Subjects
Mathematics - Functional Analysis, 47H11, 55M25
Abstract

This paper aims to provide a careful and self-contained introduction to the theory of topological degree in Euclidean spaces. It is intended for people mostly interested in analysis and, in general, a heavy background in algebraic or differential topology is not required., Comment: 25 pages

Published
2023

2. Branches of Forced Oscillations for a Class of Implicit Equations Involving the varphi-Laplacian

Author

Calamai, Alessandro, Pera, Maria Patrizia, Spadini, Marco, Gao, David, Series Editor, Ratiu, Tudor, Series Editor, Bloch, Anthony, Editorial Board Member, Gough, John, Editorial Board Member, Holm, Darryl D., Editorial Board Member, Olver, Peter, Editorial Board Member, Ortega, Juan-Pablo, Editorial Board Member, Solovej, Jan Philip, Editorial Board Member, Zgurovsky, Michael Z., Editorial Board Member, Zhang, Jun, Editorial Board Member, Zuazua, Enrique, Editorial Board Member, Amster, Pablo, editor, and Benevieri, Pierluigi, editor

Published
2024
Full Text
View/download PDF

3. Periodic perturbations of a class of scalar second order functional differential equations

Author

Calamai, Alessandro, Pera, Maria Patrizia, and Spadini, Marco

Subjects
Mathematics - Classical Analysis and ODEs, 34K13, 34C25
Abstract

We study, by means of a topological approach, the forced oscillations of second order functional retarded differential equations subject to periodic perturbations. We consider a delay-type functional dependence involving a gamma probability distribution. By a linear chain trick we obtain a first order system of ODE's whose $T$-periodic solutions correspond to those of the functional equation., Comment: 15 pages, 4 figures

Published
2022

10. Estimates of the topological degree of a class of piecewise linear maps with applications.

Author

Poggiolini, Laura and Spadini, Marco

Subjects
*TOPOLOGICAL degree, *LINEAR operators, *NONLINEAR equations, *INVERSE functions
Abstract

We provide some new estimates for the topological degree of a class of continuous and piecewise linear maps based on a classical integral computation formula. We provide applications to some nonlinear problems that exhibit a local P C 1 structure. [ABSTRACT FROM AUTHOR]

Published
2022
Full Text
View/download PDF

11. Sources of Finite Speed Temperature Propagation.

Author

Mariano, Paolo Maria and Spadini, Marco

Subjects
*HEAT flux, *HEAT conduction, *FINITE, The, *SPEED, *TEMPERATURE
Abstract

The relation between heat flux and temperature gradient has been considered as a constitutive structure or as a balance law in different approaches. Both views may allow a description of heat conduction characterized by finite speed propagation of temperature disturbances. Such a result, which overcomes Fourier's drawback of infinite speed propagation, can be obtained also by considering insufficient the representation of a conductor, even when it is considered to be rigid, rather than the sole relation between heat flux and temperature gradient. We comment this last view and describe the intersection with previous proposals. Eventually, we show how under Fourier's law we can have traveling-wave-type temperature propagation when thermal microstructures are accounted for. [ABSTRACT FROM AUTHOR]

Published
2022
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results