Zobrazeno 1 - 10
of 1 235
pro vyhledávání: '"Fermo, P"'
Autor:
Fermo, Luisa, Loi, Valerio
The paper deals with the numerical approximation of the Hilbert transform on the unit circle using Szeg\"o and anti-Szeg\"o quadrature formulas. These schemes exhibit maximum precision with oppositely signed errors and allow for improved accuracy thr
Externí odkaz:
http://arxiv.org/abs/2409.07810
A global approximation method of Nystr\"om type is explored for the numerical solution of a class of nonlinear integral equations of the second kind. The cases of smooth and weakly singular kernels are both considered. In the first occurrence, the me
Externí odkaz:
http://arxiv.org/abs/2407.10842
Autor:
Paola Fermo, Chiara Andrea Lombardi, Alfonsina D’Amato, Vittoria Guglielmi, Benedetta Giudici, Alice Tomaino, Massimiliana Pozzi, Valeria Comite, Andrea Bergomi, Lorenzo Guardiano, Patrizia Piacentini
Publikováno v:
Heritage, Vol 7, Iss 9, Pp 4980-4996 (2024)
The present study is aimed at the characterization of artifacts excavated in the necropolis surrounding the mausoleum of the Aga Khan in Aswan (Egypt), as part of the Mummies Investigations Anthropological & Scientific West Aswan Necropolis (MIASWAN)
Externí odkaz:
https://doaj.org/article/18b23f50df8849bda31b72ba5c224d5e
The purpose of the paper is to provide a characterization of the error of the best polynomial approximation of composite functions in weighted spaces. Such a characterization is essential for the convergence analysis of numerical methods applied to n
Externí odkaz:
http://arxiv.org/abs/2308.06043
Publikováno v:
Appl. Math. Comput., 467:128482 (20 pages), 2024
Fredholm integral equations of the second kind that are defined on a finite or infinite interval arise in many applications. This paper discusses Nystr\"om methods based on Gauss quadrature rules for the solution of such integral equations. It is imp
Externí odkaz:
http://arxiv.org/abs/2307.11601
Autor:
Giovanni Failla, Francesco Tiralongo, Pina Crimi, Salvatore Lo Fermo, Pietro Valerio Foti, Emanuele David, Corrado Ini, Monica Palermo, Daniele Falsaperla, Stefano Palmucci, Antonio Basile
Publikováno v:
Radiology Case Reports, Vol 19, Iss 8, Pp 3013-3018 (2024)
Wernicke encephalopathy (WE) is a rare but severe neurological syndrome characterized, in its classic form, by the acute onset of ocular disturbances, ataxia, and cognitive impairment. It is caused by a deficiency of thiamine (vitamin B1) and mainly
Externí odkaz:
https://doaj.org/article/2a0ba17025fe47758c53d1ff72b68215
This paper provides a product integration rule for highly oscillating integrands, based on equally spaced nodes. The stability and the error estimate are proven in the space of continuous functions, and some numerical tests which confirm such estimat
Externí odkaz:
http://arxiv.org/abs/2207.08881
In the present paper, a Nystrom-type method for second kind Volterra integral equations is introduced and studied. The method makes use of generalized Bernstein polynomials, defined for continuous functions and based on equally spaced points. Stabili
Externí odkaz:
http://arxiv.org/abs/2207.06736
Autor:
Stefano Costanzo, Marta Pappalardo, Elisabetta Starnini, Elena Rossoni-Notter, Olivier Notter, Abdelkader Moussous, Miguel Soares-Remiseiro, Paola Fermo, Mauro Cremaschi, Andrea Zerboni
Publikováno v:
MethodsX, Vol 13, Iss , Pp 102897- (2024)
We present a review of the latest framework achievements in geoarchaeological sciences applied to microstratigraphic and biomolecular studies of prehistoric archaeological contexts, highlighting the importance of musealized archaeological stratigraph
Externí odkaz:
https://doaj.org/article/871f8c3fc78540c8b8e89cdd9af1f9b0
Publikováno v:
Numerical Algorithms 92, 471-502 (2023)
Overdetermined systems of first kind integral equations appear in many applications. When the right-hand side is discretized, the resulting finite-data problem is ill-posed and admits infinitely many solutions. We propose a numerical method to comput
Externí odkaz:
http://arxiv.org/abs/2201.12054