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Hoyos, Carlos; Kim, Bom Soo; Oz, Yaron
Funding organisation: SCOAP3, CERN, Geneva (Switzerland)
arXiv e-print [ PDF ]2014
Funding organisation: SCOAP3, CERN, Geneva (Switzerland)
arXiv e-print [ PDF ]2014
AbstractAbstract
[en] We compute the bulk viscosity in holographic models dual to theories with Lifshitz scaling and/or hyperscaling violation, using a generalization of the bulk viscosity formula derived in arXiv:1103.1657 from the null focusing equation. We find that only a class of models with massive vector fields are truly Lifshitz scale invariant, and have a vanishing bulk viscosity. For other holographic models with scalars and/or massless vector fields we find a universal formula in terms of the dynamical exponent and the hyperscaling violation exponent
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Available from http://dx.doi.org/10.1007/JHEP03(2014)050; Available from http://repo.scoap3.org/record/1604; PUBLISHER-ID: JHEP03(2014)050; OAI: oai:repo.scoap3.org:1604; Copyright (c) OPEN ACCESS, © The Authors; This article is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) (CC-BY 4.0), which permits any use, distribution and reproduction in any medium, provided the original author(s) and source are credited.; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
Journal
Journal of High Energy Physics (Online); ISSN 1029-8479;
; v. 2014(03); p. 50

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Nesterenko, M.; Pošta, S., E-mail: maryna@imath.kiev.ua, E-mail: severin.posta@fjfi.cvut.cz2018
AbstractAbstract
[en] Deformations of the smallest Galilei algebra are constructed and deformed algebras are realized by Lie vector fields. For these realization bases of differential invariants and operators of invariant differentiation are constructed in the case of two dependent and one independent variables.
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Available from http://link.springer.com/openurl/fulltext?id=doi:10.1134/S1063779618050301; Copyright (c) 2018 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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Physics of Particles and Nuclei; ISSN 1063-7796;
; v. 49(5); p. 949-951

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AbstractAbstract
No abstract available
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Available from http://dx.doi.org/10.1070/RM2004v059n03ABEH000755; Abstract only; Country of input: International Atomic Energy Agency (IAEA)
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[en] Under certain weak, physically reasonable conditions it is shown that a space-time can have at most one timelike hypersurface orthogonal killing vector field (to within a constant multiple)
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Journal Article
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Ann. Inst. Henri Poincare, Sect. A; v. 23(3); p. 297-301
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Lee, Manseob, E-mail: lmsds@mokwon.ac.kr2013
AbstractAbstract
[en] We show that C1-generically, if a divergence-free vector field has the orbital shadowing property then the vector field is Anosov
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S0960-0779(13)00101-X; Available from http://dx.doi.org/10.1016/j.chaos.2013.05.013; Copyright (c) 2013 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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Chaos, Solitons and Fractals; ISSN 0960-0779;
; v. 54; p. 71-75

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AbstractAbstract
[en] In this paper we construct a theory of indices of Morse-Bott vector fields on a manifold and use it to solve a famous localization problem for the transfer map. As a consequence, we obtain addition theorems for universal Pontryagin classes in cobordisms. This enables us to complete the construction of the theory of universal characteristic classes, which was begun more than twenty years ago
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Available from http://dx.doi.org/10.1070/IM2000v064n02ABEH000282; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
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Izvestiya. Mathematics; ISSN 1064-5632;
; v. 64(2); p. 223-247

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AbstractAbstract
No abstract available
Original Title
Teoreticke duvody obecneho vyskytu interakci se ctyrpotencialem
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Sodomka, L. (ed.); p. 273-274; 1976; p. 273-274; ACADEMIA; Prague, Czechoslovakia; 4. conference of Czechoslovak physicists; Liberec, Czechoslovakia; 18 - 22 Aug 1975; Published in summary form only.
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Book
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Conference
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Chen, Yuanyuan; Zhang, Liangyun, E-mail: zlyun@njau.edu.cn2014
AbstractAbstract
[en] In this paper, we introduce the category of Yetter-Drinfel'd Hom-modules which is a braided monoidal category and show that the category of Yetter-Drinfel'd Hom-modules is a full monoidal subcategory of the left center of left Hom-module category. Also we study the equivalent relationship between the category of Yetter-Drinfel'd Hom-modules and the category of Hom-modules over the Drinfel'd double. Finally, the Faddeev-Reshetikhin-Takhtajan (FRT) type theorem for the quantum Hom-Yang-Baxter equation is investigated
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(c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
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Ertem, Ümit, E-mail: umitertemm@gmail.com2016
AbstractAbstract
[en] We provide a generalization of the Lie algebra of conformal Killing vector fields to conformal Killing–Yano forms. A new Lie bracket for conformal Killing–Yano forms that corresponds to slightly modified Schouten–Nijenhuis bracket of differential forms is proposed. We show that conformal Killing–Yano forms satisfy a graded Lie algebra in constant curvature manifolds. It is also proven that normal conformal Killing–Yano forms in Einstein manifolds also satisfy a graded Lie algebra. The constructed graded Lie algebras reduce to the graded Lie algebra of Killing–Yano forms and the Lie algebras of conformal Killing and Killing vector fields in special cases. (paper)
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Available from http://dx.doi.org/10.1088/0264-9381/33/12/125033; Country of input: International Atomic Energy Agency (IAEA)
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Valiquette, Francis, E-mail: valiq001@math.umn.edu2008
AbstractAbstract
[en] In Ndogmo (2008 J. Phys. A: Math. Theor. 41 025207), the author claims to have determined a complete list of functionally independent differential invariants up to order 2 for the equivalence group of differential equations defined by vector fields when there are two and three independent variables. In this comment, we show that this is not the case. Using the equivariant moving frame method, we derive a complete set of functionally independent differential invariants of orders 1 and 2 for an arbitrary number n ≥ 2 of independent variables. In the particular case n = 2, we obtain six functionally independent invariants, two of which were not found in Ndogmo (2008 J. Phys. A: Math. Theor. 41 025207). In the case n = 3, we get 21 functionally independent invariants, six of which are new. We also give a complete classification of the differential invariants. (comment)
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S1751-8113(08)84420-4; Available from http://dx.doi.org/10.1088/1751-8113/41/47/478001; Country of input: International Atomic Energy Agency (IAEA)
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Journal Article
Journal
Journal of Physics. A, Mathematical and Theoretical (Online); ISSN 1751-8121;
; v. 41(47); [11 p.]

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