Zobrazeno 1 - 10
of 159
pro vyhledávání: '"Física matemàtica"'
Publikováno v:
Communications in Mathematical Physics. 397:337-392
We study spectral properties of Dirac operators on bounded domains $\Omega \subset \mathbb{R}^3$ with boundary conditions of electrostatic and Lorentz scalar type and which depend on a parameter $\tau\in\mathbb{R}$; the case $\tau = 0$ corresponds to
The effects of microgravity on organisms is an important study field expected to have plenty of applications in the future. The problem is that it is not easy at all to experiment with microgravity. The spatial missions are scarce and expensive, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3484::f2c83cec323ab2fcab984346bd4cbd23
https://hdl.handle.net/2117/385654
https://hdl.handle.net/2117/385654
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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We derive two families of low-thrust station-keeping control procedures based on the dynamical properties of the phase space near libration point orbits. The first family is obtained as the limit of impulsive maneuvers, and the second one by means of
We investigate the effects of resetting mechanisms when valuing the future in economic terms through the discount function. Discounting is specially significant in addressing environmental problems and in evaluating the sense of urgency to act today
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d60879e70af9747a91f31547497b1fd1
http://hdl.handle.net/2445/196317
http://hdl.handle.net/2445/196317
Autor:
Shengfeng Gu, Chengkun Gan, Chengpeng He, Haixia Lyu, Manuel Hernandez-Pajares, Yidong Lou, Jianghui Geng, Qile Zhao
Ionospheric delay modeling is not only important for Global Navigation Satellite System (GNSS) based space weather study and monitoring, but also an efficient tool to speed up the convergence time of Precise Point Positioning (PPP). In this study, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63a30ffd75cad9b48452bd4654068e13
https://hdl.handle.net/2117/385245
https://hdl.handle.net/2117/385245
This paper is devoted to the study of the influence of the solar radiation pressure on the dynamics around the dynamical substitutes of the L1 and L2 points in the Earth–Moon Quasi-Bicircular Problem. This dynamical model is a periodic perturbation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c3ca1e7572c8b544e602715be268e4cb
https://hdl.handle.net/2117/387741
https://hdl.handle.net/2117/387741
Autor:
Cela París, José María
Transition to turbulence in pipe flow is a long standing problem in the field of turbulence research. In the route to fully turbulent pipe flow, turbulence presents itself in a wide variety of forms. In recent years, a simple empirical model that rep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______3484::f8b05e5f2ac40f39b4aa3f922b8baf73
https://hdl.handle.net/2117/378144
https://hdl.handle.net/2117/378144
Treballs Finals de Grau de Matemàtiques, Facultat de Matemàtiques, Universitat de Barcelona, Any: 2022, Director: Joana Cirici
[en] Modern physics relies heavily on differential geometry in order to establish the mathematical formulation of it
[en] Modern physics relies heavily on differential geometry in order to establish the mathematical formulation of it
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od_______963::c00d5de0b66c929bbb4c744e596bb782
http://hdl.handle.net/2445/192109
http://hdl.handle.net/2445/192109
Autor:
Ayora Mexia, Marcel
Publikováno v:
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Universitat Politècnica de Catalunya (UPC)
Durant molts anys la comunitat científica ha estat treballant per entendre millor la topologia i les propietats físiques dels tubs de flux (flux ropes en anglès), car són una de les principals formes en les quals l’activitat solar estructura el
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::579b5d7cef5020d6433ce1cdfa2bf183
https://hdl.handle.net/2117/370243
https://hdl.handle.net/2117/370243
Autor:
Anupam Mazumdar, Carlos Heredia Pimienta, Josep Llosa, Ivan Kolar, Francisco José Maldonado Torralba
Publikováno v:
Classical and Quantum Gravity, 39(8):085001. IOP PUBLISHING LTD
This article aims to transform the infinite-order Lagrangian density for ghost-free infinite-derivative linearized gravity into non-local. To achieve it, we use the theory of generalized functions and the Fourier transform in the space of tempered di