Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Pieter P. N. de Groen"'
Publikováno v:
Electronic Journal of Differential Equations, Vol 2005, Iss 54, Pp 1-22 (2005)
In this paper we study the stability of the single internal spike solution of a simplified Gierer-Meinhardt' system of equations in one space dimension. The linearization around this spike consists of a selfadjoint differential operator plus a non-lo
Externí odkaz:
https://doaj.org/article/e069fe63364a4aa6ba31959983e74c01
Publikováno v:
Journal of Glaciology. 56:257-261
We address the usefulness of the unstable manifold correction (UMC) in a Picard iteration for the solution of the velocity field in higher-order ice-flow models. We explain under- and overshooting and how one can remedy them. We then discuss the rati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::373698b17b5d74366954fa271786c000
https://doi.org/10.3189/002214310791968395
https://doi.org/10.3189/002214310791968395
Publikováno v:
Vrije Universiteit Brussel
The alignment of images is a well known clinical procedure to detect and monitor the evolution of medical conditions. Mutual Information (MI) is a frequently used alignment criterion. Although MI based alignment criteria have reached maturity, some i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a0b7ff5495605b8fb644bb0142b2c9f
https://doi.org/10.1109/itab.2010.5687705
https://doi.org/10.1109/itab.2010.5687705
Publikováno v:
Particle & Particle Systems Characterization. 9:237-251
The application of the singular value analysis and reconstruction method (SVR) and of the Contin method for the collective analysis of multi-angle noisy photon correlation data sets was investigated. Provided the data are sampled equidistant in time
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::265b216e0021d23bd34f8b9313124fc2
https://doi.org/10.1002/ppsc.19920090133
https://doi.org/10.1002/ppsc.19920090133
Autor:
Pieter P. N. de Groen
Publikováno v:
Applied Numerical Mathematics. 8:117-125
Cyclic reduction is often heralded as a vectorizable and fast method for the solution of weakly diagonally dominant tridiagonal systems of equations on a vector processor. However, in the standard version, where the number of equations is halved in e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f36143af1a77bb998acf7d08aa58aa8c
https://doi.org/10.1016/0168-9274(91)90046-3
https://doi.org/10.1016/0168-9274(91)90046-3
Autor:
Pieter P. N. de Groen
Publikováno v:
The American Mathematical Monthly. 97:406
(1990). A Counterexample on Vector Norms and the Subordinate Matrix Norms. The American Mathematical Monthly: Vol. 97, No. 5, pp. 406-407.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::575dedf9d28ea1e108fabff83afd88d1
https://doi.org/10.2307/2324392
https://doi.org/10.2307/2324392
Autor:
Pieter P. N. de Groen
Publikováno v:
Linear Algebra and its Applications. 43:161-166
Let A by an M-matrix, i.e., A is nonsingular, real, irreducible, and weakly diagonally dominant and has positive diagonal and nonpositive off-diagonal elements. Via the graph of A we construct a vector W such that AW is positive. This yields a lower
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::394f9873d6a55fc796e936235c59ea24
https://doi.org/10.1016/0024-3795(82)90250-6
https://doi.org/10.1016/0024-3795(82)90250-6
Autor:
Martin Hermann, Pieter P. N. de Groen
Publikováno v:
SIAM Journal on Scientific and Statistical Computing. 5:360-369
A new shooting technique for the numerical treatment of boundary value problems in ordinary differential equations is proposed. It improves the accuracy and robustness of the simple (unidirectional) shooting method by combining the fundamental matric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::154c7831ba790319f13dc5e832f62ba0
https://doi.org/10.1137/0905027
https://doi.org/10.1137/0905027
Autor:
Pieter P. N. de Groen
Publisher Summary This chapter presents a spectral approach of the singularly perturbed turning-point problem. The position of the turning-point problem is studied with inhomogeneous boundary conditions. The solution of the problem has transition lay
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ded8cd9b13fc28a32426c4488415ed14
https://doi.org/10.1016/b978-0-12-493260-9.50010-2
https://doi.org/10.1016/b978-0-12-493260-9.50010-2
