Zobrazeno 1 - 10
of 44
pro vyhledávání: '"numeerinen analyysi"'
Autor:
Sanna Mönkölä, Joona Räty
Publikováno v:
International Journal for Numerical Methods in Engineering. 124:1035-1054
The discrete exterior calculus (DEC) is very promising, though not yet widely used, discretization method for photonic crystal (PC) waveguides. It can be seen as a generalization of the finite difference time domain (FDTD) method. The DEC enables eff
Publikováno v:
Numerische Mathematik. 147:937-966
Functional error estimates are well-established tools for a posteriori error estimation and related adaptive mesh-refinement for the finite element method (FEM). The present work proposes a first functional error estimate for the boundary element met
We consider particle filters with weakly informative observations (or `potentials') relative to the latent state dynamics. The particular focus of this work is on particle filters to approximate time-discretisations of continuous-time Feynman--Kac pa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::20e22b318100ca3646c34c7cf344ef5c
http://arxiv.org/abs/2203.10037
http://arxiv.org/abs/2203.10037
Autor:
Monika Wolfmayr
Publikováno v:
Computers & Mathematics with Applications. 80:1050-1072
In this paper, a new technique is shown for deriving computable, guaranteed lower bounds of functional type (minorants) for two different cost functionals subject to a parabolic time-periodic boundary value problem. Together with previous results on
Autor:
Antti Luoto
Publikováno v:
Stochastic Analysis and Applications. 39:494-524
Let $W$ denote the Brownian motion. For any exponentially bounded Borel function $g$ the function $u$ defined by $u(t,x)= \mathbb{E}[g(x{+}\sigma W_{T-t})]$ is the stochastic solution of the backward heat equation with terminal condition $g$. Let $u^
The quantized vortices in superfluids are modeled by the Gross-Pitaevskii equation whose numerical time integration is instrumental in the physics studies of such systems. In this paper, we present a reliable numerical method and its efficient GPU-ac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3f06b9a07d67db8707cea764a3789fa4
http://urn.fi/URN:NBN:fi:jyu-202208174180
http://urn.fi/URN:NBN:fi:jyu-202208174180
We present an algorithm for approximating a function defined over a $d$-dimensional manifold utilizing only noisy function values at locations sampled from the manifold with noise. To produce the approximation we do not require any knowledge regardin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9544a5ec5b751773fe1415288c59ee47
http://urn.fi/URN:NBN:fi:jyu-202109295026
http://urn.fi/URN:NBN:fi:jyu-202109295026
Autor:
Lauri Kettunen, Jonni Lohi
Whitney forms are widely known as finite elements for differential forms. Whitney’s original definition yields first order functions on simplicial complexes, and a lot of research has been devoted to extending the definition to nonsimplicial cells
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::27c06f6f38c26c9305b7cd84217bf986
http://urn.fi/URN:NBN:fi:jyu-202103151967
http://urn.fi/URN:NBN:fi:jyu-202103151967
Autor:
J. Bonnard, Leszek Próchniak, Y. Shi, Michaël Bender, Andrea Idini, Wojciech Satula, Y. Gao, A. M. Romero, Jacek Dobaczewski, L. F. Yu, P. Becker, K. Bennaceur, T. R. Werner, Markus Kortelainen, P. Bączyk, M. Konieczka
Publikováno v:
J.Phys.G
J.Phys.G, 2021, 48, pp.102001. ⟨10.1088/1361-6471/ac0a82⟩
J.Phys.G, 2021, 48, pp.102001. ⟨10.1088/1361-6471/ac0a82⟩
We describe the new version (v3.06h) of the code HFODD that solves the universal nonrelativistic nuclear DFT Hartree-Fock or Hartree-Fock-Bogolyubov problem by using the Cartesian deformed harmonic-oscillator basis. In the new version, we implemented
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a36d07ac478bcadfa6ad8324efec0f3
http://urn.fi/URN:NBN:fi:jyu-202110265414
http://urn.fi/URN:NBN:fi:jyu-202110265414
Publikováno v:
Mathematics and Computers in Simulation
The paper deals with the identification of material parameters characterizing components in heterogeneous geocomposites provided that the interfaces separating different materials are known. We use the optimal control approach with flux type cost fun
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6eb0ad9b7b6816a2e7c54b85d4ab300f
http://urn.fi/URN:NBN:fi:jyu-202108184561
http://urn.fi/URN:NBN:fi:jyu-202108184561