Zobrazeno 1 - 10
of 98
pro vyhledávání: '"Paola F. Antonietti"'
Autor:
Paola F. Antonietti, Ilario Mazzieri, Laura Melas, Roberto Paolucci, Alfio Quarteroni, Chiara Smerzini, Marco Stupazzini
Publikováno v:
Mathematics in Engineering, Vol 3, Iss 2, Pp 1-31 (2021)
In this paper we describe a mathematical and numerical approach that combines physics-based simulated ground motion caused by earthquakes with fragility functions to model the structural damages induced to buildings. To simulate earthquake ground mot
Externí odkaz:
https://doaj.org/article/0cdf06c4e0004db7b324276e8f7a901a
Publikováno v:
Mathematics in Engineering, Vol 2, Iss 2, Pp 340-385 (2020)
We propose a unified formulation based on discontinuous Galerkin methods on polygonal/polyhedral grids for the simulation of flows in fractured porous media. We adopt a model for single-phase flows where the fracture is modeled as a (d-1)-dimensional
Externí odkaz:
https://doaj.org/article/8ff625723cc241ec96e4be0feb6e6d66
Publikováno v:
AIMS Mathematics, Vol 1, Iss 3, Pp 178-194 (2016)
We consider a second-order two-step time semi-discretization of the Cahn-Hilliard equation with an analytic nonlinearity. The time-step is chosen small enough so that the pseudo-energy associated withdiscretization is nonincreasing at every time iter
Externí odkaz:
https://doaj.org/article/39efc2c5a15d4eee8de85f490b8a59ed
Publikováno v:
SIAM Journal on Scientific Computing. 45:A621-A645
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2b3760b88f84da4e837b8219de29121
https://doi.org/10.1137/22m1498747
https://doi.org/10.1137/22m1498747
Publikováno v:
SIAM Journal on Numerical Analysis. 61:223-249
In this paper we analyse the convergence properties of two-level, W-cycle and V-cycle agglomeration-based geometric multigrid schemes for the numerical solution of the linear system of equations stemming from the lowest order $C^0$-conforming Virtual
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::898c6337853dd9ec7b9285372ae0a12b
https://doi.org/10.1137/21m1466864
https://doi.org/10.1137/21m1466864
Publikováno v:
Vietnam Journal of Mathematics. 51:1-36
We present a novel deep learning-based algorithm to accelerate - through the use of Artificial Neural Networks (ANNs) - the convergence of Algebraic Multigrid (AMG) methods for the iterative solution of the linear systems of equations stemming from f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9bfd823d10c9b2d894615b3c6aa4af7f
https://doi.org/10.1007/s10013-022-00597-w
https://doi.org/10.1007/s10013-022-00597-w
Publikováno v:
Communications in Computational Physics. 30:1-33
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d94549ad0cd249fd5dab81343339f419
https://doi.org/10.4208/cicp.oa-2020-0079
https://doi.org/10.4208/cicp.oa-2020-0079
Publikováno v:
Computers & Mathematics with Applications. 116:116-139
We present a numerical approximation of Darcy's flow through a porous medium that incorporates networks of fractures with non empty intersection. Our scheme employs PolyDG methods, i.e. discontinuous Galerkin methods on general polygonal and polyhedr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cfcea0ea18189b7a2b83957e9a4a0ea8
https://doi.org/10.1016/j.camwa.2021.08.015
https://doi.org/10.1016/j.camwa.2021.08.015
Given a positive operator A on some Hilbert space, and a nonnegative decreasing summable function $$\mu $$ μ , we consider the abstract equation with memory $$\begin{aligned} \ddot{u}(t)+ A u(t)- \int _0^t \mu (s)Au(t-s) ds=0 \end{aligned}$$ u ¨ (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db1dd6c74a216621648bacafd645fc6b
https://hdl.handle.net/10281/414698
https://hdl.handle.net/10281/414698
