Zobrazeno 1 - 10
of 444
pro vyhledávání: '"P. A. Sparber"'
Autor:
Klein, Christian, Sparber, Christof
We consider nonlinear dispersive equations of Schr\"odinger-type involving fractional powers $0
Externí odkaz:
http://arxiv.org/abs/2410.18047
Autor:
A. F. Murtazina, O. A. Shchagina, T. B. Milovidova, E. L. Dadali, G. E. Rudenskaya, S. A. Kurbatov, T. V. Fedotova, S. S. Nikitin, P. A. Sparber, M. D. Orlova, A. V. Polyakov
Publikováno v:
Нервно-мышечные болезни, Vol 10, Iss 2, Pp 39-45 (2020)
Introduction. Charcot–Marie–Tooth disease type 4D is a hereditary demyelinating neuropathy, that occurs with the high frequency in patients of Roma origin. It is characterized by early onset at the age of 2–10 years and hearing impairment, mani
Externí odkaz:
https://doaj.org/article/f0577b02099e4f6d8c46c8a3b3e02aca
Autor:
Shen, Xiaoan, Sparber, Christof
We consider semiclassically scaled, weakly nonlinear Schr\"odinger equations with external confining potentials and additional angular-momentum rotation term. This type of model arises in the Gross-Pitaevskii theory of trapped, rotating quantum gases
Externí odkaz:
http://arxiv.org/abs/2403.18977
We prove the existence of a class of orbitally stable bound state solutions to nonlinear Schr\"odinger equations with super-quadratic confinement in two and three spatial dimensions. These solutions are given by time-dependent rotations of a non-radi
Externí odkaz:
http://arxiv.org/abs/2303.02236
We study the large field limit in Schr\"odinger equations with magnetic vector potentials describing translationally invariant $B$-fields with respect to the $z$-axis. In a first step, using regular perturbation theory, we derive an approximate descr
Externí odkaz:
http://arxiv.org/abs/2208.07894
Publikováno v:
Energy Reports, Vol 9, Iss , Pp 6295-6310 (2023)
The transportation sector plays an important role in the current effort towards the control of global warming. Against this backdrop, electrification is currently attracting attention as the life cycle environmental performance of different powertrai
Externí odkaz:
https://doaj.org/article/c2c4ba0d90e445e6bc61c47528bf7a58
Autor:
Arora, Anudeep K., Sparber, Christof
We study the cubic-quartic nonlinear Schr\"odinger equation (NLS) in two and three spatial dimension. This equation arises in the mean-field description of Bose-Einstein condensates with Lee-Huang-Yang correction. We first prove global existence of s
Externí odkaz:
http://arxiv.org/abs/2112.09213
Autor:
Richman, Evelyn, Sparber, Christof
We study the strong magnetic field limit for a nonlinear Iwatsuka-type model, i.e. a nonlinear Schr\"odinger equation in two spatial dimensions with a magnetic vector potential that only depends on the $x$-coordinate. Using a high-frequency averaging
Externí odkaz:
http://arxiv.org/abs/2103.16555
We consider the nonlinear Schr\"odinger equation with a focusing cubic term and a defocusing quintic nonlinearity in dimensions two and three. The core of this article is the notion of stability of solitary waves. We recall the two standard notions o
Externí odkaz:
http://arxiv.org/abs/2012.11637
Autor:
Britt A. E. Dhaenens, Fenna Mahler, Hannah Batchelor, Pamela Dicks, Segolene Gaillard, Begonya Nafria, Annette Kopp‐Schneider, Maria Alexandra Ribeiro, Matthias Schwab, Monika Sparber‐Sauer, Jonas Leubner, Saskia N. deWildt, Rianne Oostenbrink
Publikováno v:
Clinical and Translational Science, Vol 16, Iss 8, Pp 1458-1468 (2023)
Abstract Advice from multiple stakeholders is required to design the optimal pediatric clinical trial. We present recommendations for acquiring advice from trial experts and patients/caregivers, derived from advice meetings that were performed throug
Externí odkaz:
https://doaj.org/article/640a9c0eb9d34e10955815d0c9c47643