Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Uwe Brauer"'
Autor:
Uwe Brauer, Lavi Karp
Publikováno v:
Journal of Evolution Equations. 23
We show global existence of classical solutions for the nonlinear Nordström theory with a source term and a cosmological constant under the assumption that the source term is small in an appropriate norm, while in some cases no smallness assumption
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::018b38a522a5e3a907ddbe037fbb67df
https://doi.org/10.1007/s00028-022-00862-y
https://doi.org/10.1007/s00028-022-00862-y
Autor:
Uwe Brauer, Lavi Karp
Publikováno v:
Trends in Mathematics ISBN: 9783030875015
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e5b4606ac4e7dc35ab2d9dc33368756
https://doi.org/10.1007/978-3-030-87502-2_54
https://doi.org/10.1007/978-3-030-87502-2_54
Autor:
Lavi Karp, Uwe Brauer
Publikováno v:
Springer INdAM Series ISBN: 9783030613457
We cast the non-isentropic relativistic Euler system into a symmetric hyperbolic form. Such systems are very suited to treat initial value problems of hyperbolic type. We obtain this form by using the pressure p and not the density ρ as a variable.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d3fc6f054c20fd9908f77af21eec451
https://doi.org/10.1007/978-3-030-61346-4_3
https://doi.org/10.1007/978-3-030-61346-4_3
Autor:
Uwe Brauer, Lavi Karp
Publikováno v:
Journal of Differential Equations. 264:755-785
Local existence and well posedness for a class of solutions for the Euler Poisson system is shown. These solutions have a density $\rho$ which either falls off at infinity or has compact support. The solutions have finite mass, finite energy function
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::254f9f5588abbabae357ef2a3daaf48c
https://doi.org/10.1016/j.jde.2017.09.024
https://doi.org/10.1016/j.jde.2017.09.024
Autor:
Uwe Brauer, Lavi Karp
We show the continuity of the flow map for quasilinear symmetric hyperbolic systems with general right-hand sides in different functional setting, including weighted Sobolev spaces Hs δ. An essential tool to achieve the continuity of the flow map is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba3f1c86ed0054b90776f0d49d6a3f64
http://arxiv.org/abs/1811.05279
http://arxiv.org/abs/1811.05279
Publikováno v:
Acta Astronautica. 64:1150-1159
The unified synoptic system (USS) was developed by ESA for replacing the existing Columbus display solutions and to unify the display system used on-board and on-ground. USS provides enhanced flight operations efficiency and reduced effort for produc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fb6e74c7f67d2ca2088c7a133255951e
https://doi.org/10.1016/j.actaastro.2009.01.034
https://doi.org/10.1016/j.actaastro.2009.01.034
Publikováno v:
Acta Astronautica. 61:1053-1060
The European Space Agency (ESA) initiated a joint project with the National Aeronautics and Space Administration (NASA) and industry partners for improved authoring and execution of Operations Data File (ODF) procedures. The system consists of an aut
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30e6131854f123e40c58d64a18ebf600
https://doi.org/10.1016/j.actaastro.2006.12.028
https://doi.org/10.1016/j.actaastro.2006.12.028
Autor:
Uwe Brauer
Publikováno v:
Journal of Mathematical Physics. 39:1050-1074
Results concerning the occurrence of (kinematical) singularities obtained by Majda et al. [Commun. Math. Phys. 94, 61–66 (1984)] for the incompressible Euler equations and of Chemin [Commun. Math. Phys. 133, 323–329 (1990)] for the compressible E
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6624067f9377f02e69b5e5305d6311f1
https://doi.org/10.1063/1.532370
https://doi.org/10.1063/1.532370
Autor:
Lavi Karp, Uwe Brauer
This paper deals with the applications of weighted Besov spaces to elliptic equations on asymptotically flat Riemannian manifolds, and in particular to the solutions of Einstein's constraints equations. We establish existence theorems for the Hamilto
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2641b93ae17178b432b215d609094a8a
http://arxiv.org/abs/1209.2642
http://arxiv.org/abs/1209.2642
Autor:
Lavi Karp, Uwe Brauer
This paper deals with the evolution of the Einstein gravitational fields which are coupled to a perfect fluid. We consider the Einstein--Euler system in asymptotically flat spacestimes and therefore use the condition that the energy density might van
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7e0db853a1dbb88aba7860e784816b4c