Výsledky vyhledávání - "Equacions integrals"

Small Hankel operators on generalized weighted Fock spaces

Autor: Carme Cascante, Joan Fb̀rega, Daniel Pascuas

In this work we characterize the boundedness, compactness and membership in the Schatten class of small Hankel operators on generalized weighted Fock spaces $F^{p,\ell}_\alpha(\omega)$ associated to an $\mathcal{A}^\ell_p$ weight $\omega$, for $10$.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1190883dc73e7b087e4edda84ff3798c
https://doi.org/10.1090/proc/16534

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Low-Rank Matrix Factorization Method for Multiscale Simulations: A Review

Autor: Mengmeng Li, Giuseppe Vecchi, Jun Hu, Dazhi Ding, Rushan Chen, Alexander Heldring

Publikováno v: IEEE Open Journal of Antennas and Propagation, Vol 2, Pp 286-301 (2021)
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

In this paper, a review of the low-rank factorization method is presented, with emphasis on their application to multiscale problems. Low-rank matrix factorization methods exploit the rankdeficient nature of coupling impedance matrix blocks between t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4dda0b72432d2453d1151d87404ef9fa
https://ieeexplore.ieee.org/document/9361699/

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Efficient analysis of thick curved metal sheets

Autor: Juan M. Rius, Eduard Ubeda

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

The scattering analysis of perfectly conducting plates with the method-of-moment discretization of the Electric-Field Integral Equation has been traditionally carried out according to the thin-sheet approximation, which neglects the current contribut

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::73a8e4dba83b8104c2ee0045d90c9aa1
https://doi.org/10.23919/eucap51087.2021.9411007

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Nonintrusive Uncertainty Quantification for automotive crash problems with VPS/Pamcrash

Autor: Pedro Díez, Marc Rocas, Sergio Zlotnik, Xabier Larráyoz, Alberto García-González

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

© 2021 Elsevier. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ Uncertainty Quantification (UQ) is a key discipline for computational modeling of complex systems, enhanci

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http://arxiv.org/abs/2102.07673

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Efficient analysis of sheets with nonzero thickness

Autor: Úbeda Farré, Eduard, Rius Casals, Juan Manuel

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

The conventional scattering analysis of perfectly conducting plates neglects the scattering contribution of the rim in the discretization of the Electric-Field Integral Equation. This so-called thin-plate scheme manages many less unknowns than the fu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::d9fdd1b72523423f6d92db7a26551894

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Semilinear fractional stochastic differential equations driven by a γ-Hölder continuous signal with γ > 2/3

Autor: Jorge A. León, David Márquez-Carreras

Publikováno v: Dipòsit Digital de la UB
Universidad de Barcelona

In this paper, we use the techniques of fractional calculus to study the existence of a unique solution to semilinear fractional differential equation driven by a [Formula: see text]-Hölder continuous function [Formula: see text] with [Formula: see

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1c35ebc5b1e27adc65d14e63144c7647
https://doi.org/10.1142/s0219493720500392

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Versatile and accurate schemes of discretization for the electromagnetic scattering analysis of arbitrarily shaped piecewise homogeneous objects

Autor: Ivan Sekulic, Eduard Ubeda, Juan M. Rius

Publikováno v: Recercat. Dipósit de la Recerca de Catalunya
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

The discretization by the method of moments (MoM) of integral equations in the electromagnetic scattering analysis most often relies on divergence-conforming basis functions, such as the Rao–Wilton–Glisson (RWG) set, which preserve the normal con

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c88967be7ba2842be9d7e207197a6d00
https://hdl.handle.net/2117/125620

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Versatile and accurate electromagnetic analysis of piecewise homogeneous composite objects

Autor: Eduard Ubeda, Juan M. Rius, Ivan Sekulic

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Recercat. Dipósit de la Recerca de Catalunya
instname

©2018 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new c

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Volumetric Testing Parallel to the Boundary Surface for a Nonconforming Discretization of the Electric-Field Integral Equation

Autor: Ivan Sekulic, Juan M. Rius, Alexander Heldring, Eduard Ubeda

Publikováno v: Recercat. Dipósit de la Recerca de Catalunya
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

© 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c25108610b5f949e414d202b67758ce2
https://doi.org/10.1109/tap.2015.2426793

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A semi-analytical scheme for highly oscillatory integrals over tetrahedra

Autor: Hospital Bravo, Raúl, Sarrate Ramos, Josep, Díez, Pedro

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Recercat. Dipósit de la Recerca de Catalunya
instname

This is the peer reviewed version of the following article: [Hospital-Bravo, R., Sarrate, J., and Díez, P. (2017) A semi-analytical scheme for highly oscillatory integrals over tetrahedra. Int. J. Numer. Meth. Engng, 111: 703–723. doi: 10.1002/nme

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::fb10949b401243bd44ffac46e3241691
https://hdl.handle.net/2117/107470

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