Results 21 to 30 of about 16,119 (189)
Generalized α-Attractor Models from Elementary Hyperbolic Surfaces
Advances in Mathematical Physics, 2018 We consider generalized α-attractor models whose scalar potentials are globally well-behaved and whose scalar manifolds are elementary hyperbolic surfaces.
Elena Mirela Babalic +1 more
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Evolution equations of multi-planet systems with variable masses
Вестник КазНУ. Серия математика, механика, информатика, 2022 In celestial mechanics and astrodynamics, the study of the dynamical evolution of exoplanetary systems is the relevant topics. For today more than 3,000 exoplanetary systems are known.
M. Minglibayev, A. Kosherbayeva
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On a version of Trudinger-Moser inequality with M\"obius shift invariance [PDF]
, 2009 The paper raises a question about the optimal critical nonlinearity for the Sobolev space in two dimensions, connected to loss of compactness, and discusses the pertinent concentration compactness framework. We study properties of the improved version of
Adimurthi, Tintarev, K.
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Dynamics of a rolling disc with an inclined sliding support
Известия высших учебных заведений. Поволжский регион: Физико-математические науки, 2021 Background. Nonholonomic mechanical systems can be models of various technical and robotic devices. Taking into account modern trends, the relevance of the study of nonholonomic systems is obvious and indisputable.
E.A. Mikishanina
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Charged particle dynamics in parabolic magnetosphere around Schwarzschild black hole
European Physical Journal C: Particles and Fields, 2023 The study of charged particle dynamics in the combined gravitational and magnetic field can provide important theoretical insight into astrophysical processes around black holes.
Martin Kološ +2 more
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Two-field cosmological α-attractors with Noether symmetry
Journal of High Energy Physics, 2019 We study Noether symmetries in two-field cosmological α-attractors, investigating the case when the scalar manifold is an elementary hyperbolic surface. This encompasses and generalizes the case of the Poincaré disk.
Lilia Anguelova +2 more
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Tau functions for the Dirac operator on the Poincaré disk [PDF]
Communications in Mathematical Physics, 1994 92 ...
Palmer, John +2 more
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Simple sinflaton-less α-attractors
Journal of High Energy Physics, 2019 We construct the simplest inflationary α-attractor models in supergravity: it has only one scalar, the inflaton. There is no sinflaton since the inflaton belongs to an orthogonal nilpotent superfield where the sinflaton depends on fermion bilinears. When
Renata Kallosh, Yusuke Yamada
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Compass and Straightedge in the Poincare Disk [PDF]
The American Mathematical Monthly, 2001 (2001). Compass and Straightedge in the Poincare Disk. The American Mathematical Monthly: Vol. 108, No. 1, pp. 38-49.
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Quantum groups, non-commutative AdS 2, and chords in the double-scaled SYK model
Journal of High Energy Physics, 2023 We study the double-scaling limit of SYK (DS-SYK) model and elucidate the underlying quantum group symmetry. The DS-SYK model is characterized by a parameter q, and in the q → 1 and low-energy limit it goes over to the familiar Schwarzian theory.
Micha Berkooz +3 more
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