Výsledky vyhledávání - "Ornela Mulita"

Smoothed-Adaptive Perturbed Inverse Iteration for Elliptic Eigenvalue Problems

Autor: Ornela Mulita, Luca Heltai, Luka Grubišić, Stefano Giani

Publikováno v: Computational methods in applied mathematics, 2021, Vol.21(2), pp.385-405 [Peer Reviewed Journal]

We present a perturbed subspace iteration algorithm to approximate the lowermost eigenvalue cluster of an elliptic eigenvalue problem. As a prototype, we consider the Laplace eigenvalue problem posed in a polygonal domain. The algorithm is motivated

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e6c533e38d3800d0b026a42e15e8227
https://doi.org/10.1515/cmam-2020-0027

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Quasi-optimal mesh sequence construction through Smoothed Adaptive Finite Element Methods

Autor: Luca Heltai, Ornela Mulita, Stefano Giani

Publikováno v: SIAM journal on scientific computing, 2021, Vol.43(3), pp.A2211-A2241 [Peer Reviewed Journal]

We propose a new algorithm for Adaptive Finite Element Methods (AFEMs) based on smoothing iterations (S-AFEM), for linear, second-order, elliptic partial differential equations (PDEs). The algorithm is inspired by the ascending phase of the V-cycle m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::08fea8c69854ff81c16c0eda963d6404
http://dro.dur.ac.uk/32765/1/32765.pdf

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