Results 51 to 60 of about 1,223,041 (189)

Preferred Parameterisations on Homogeneous Curves [PDF]

open access: yes, 2003
We show how to specify preferred parameterisations on a homogeneous curve in an arbitrary homogeneous space. We apply these results to limit the natural parameters on distinguished curves in parabolic geometries.Comment: 10 ...
Eastwood, Michael, Slovak, Jan
core   +1 more source

Complete classification of homogeneous structures on Lorentzian direct extensions of the Heisenberg group [PDF]

open access: yesریاضی و جامعه
The Heisenberg Lie group is one of the most famous and important Lie groups among the family of three dimensional Lie groups. The direct extension of this group to the fourth dimension was taken into consideration in the study of the nilpotent Lie ...
Amirhesam Zaeim   +2 more
doaj   +1 more source

Symmetries of holomorphic geometric structures on tori

open access: yesComplex Manifolds, 2016
We prove that any holomorphic locally homogeneous geometric structure on a complex torus of dimension two, modelled on a complex homogeneous surface, is translation invariant. We conjecture that this result is true in any dimension.
Dumitrescu Sorin, McKay Benjamin
doaj   +1 more source

Structure Theorem for Covariant Bundles on Quantum Homogeneous Spaces

open access: yes, 2001
The natural generalization of the notion of bundle in quantum geometry is that of bimodule. If the base space has quantum group symmetries one is particularly interested in bimodules covariant (equivariant) under these symmetries.
Oeckl, Robert
core   +4 more sources

Spinning particle interacting with electromagnetic and antisymmetric gauge fields in anti-de Sitter space

open access: yesEuropean Physical Journal C: Particles and Fields, 2019
Massless spinning particle model that interacts with electromagnetic and antisymmetric gauge fields in anti-de Sitter space-time is considered as a constrained Hamiltonian system.
D. V. Uvarov
doaj   +1 more source

Small BGK waves and nonlinear Landau damping

open access: yes, 2010
Consider 1D Vlasov-poisson system with a fixed ion background and periodic condition on the space variable. First, we show that for general homogeneous equilibria, within any small neighborhood in the Sobolev space W^{s,p} (p>1 ...
A. Gizzo   +44 more
core   +1 more source

K-theory for the C*-algebras of continuous functions on certain homogeneous spaces in semi-simple Lie groups</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Cubo</i>, 2012 </span><br><span class="r_content">Estudiamos la K-teoría para las álgebras de todas las funciones continuas sobre ciertos espacios homogeneos, principalmente en los grupos de Lie conexos semi- simples y subgrupos discretos .</span><br><span class="r_sub"><i>Takahiro Sudo</i></span><br><small><a href="https://doaj.org/article/a7c1bca6d1a44bebada9d87f830ff88a" target="_blank" rel="nofollow" title="doaj.org/article/a7c1bca6d1a44bebada9d87f830ff88a">doaj</a> </small>   <br></div><div class="r"><p class="r_title"><a href="https://doi.org/10.4171/zaa/792" target="_blank" rel="nofollow">Special Ball-Homogeneous Spaces</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16"><i>Zeitschrift für Analysis und ihre Anwendungen</i>, 1997 </span><br><span class="r_content">We continue the study of ball-homogeneous Riemannian manifolds, that is, R.ie-mannian spaces such that the volume of all sufficiently small geodesic balls or spheres only depends on the radius. First, we consider the case of locally reducible spaces. Then we treat the three-dimensional case, in particular for Einstein-like metrics and finally, we study </span><br><span class="r_sub"><i>CALVARUSO, Giovanni, L. VANHECKE</i></span><br><small><a href="https://explore.openaire.eu/search/publication?pid=10.4171%2Fzaa%2F792" target="_blank" rel="nofollow" title="openaire.eu/search/publication?pid=10.4171%2Fzaa%2F792">openaire</a> </small>   <div id="more_8" style="display:none"><a href="/sci_redir.php?doi=10.4171%2Fzaa%2F792" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="https://hdl.handle.net/11587/100313" target="_blank" rel="nofollow" title="hdl.handle.net/11587/100313">hdl.handle.net</a><br> <a href="https://hdl.handle.net/11587/333005" target="_blank" rel="nofollow" title="hdl.handle.net/11587/333005">hdl.handle.net</a><br> <a href="http://www.ems-ph.org/journals/show_pdf.php?issn=0232-2064&vol=16&iss=4&rank=1" target="_blank" rel="nofollow" title="ems-ph.org/journals/show_pdf.php?issn=0232-2064&vol=16&iss=4&rank=1">ems-ph.org</a><br> <a href="javascript:navigator.clipboard.writeText('10.4171/zaa/792'); alert('Copied the doi');">copy doi</a> <small>(10.4171/zaa/792)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_8')">+4 more sources</a></small><br></div><div class="r"><p class="r_title"><a href="https://doi.org/10.2140/agt.2015.15.3059" target="_blank" rel="nofollow">Fiberwise homogeneous fibrations of the 3-dimensional space forms by geodesics</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16">, 2015 </span><br><span class="r_content">A fibration of a Riemannian manifold is fiberwise homogeneous if there are isometries of the manifold onto itself, taking any given fiber to any other one, and preserving fibers.</span><br><span class="r_sub"><i>Nuchi, Haggai</i></span><br><small><a href="https://core.ac.uk/works/17212534" target="_blank" rel="nofollow" title="core.ac.uk/works/17212534">core</a> </small>   <div id="more_9" style="display:none"><a href="/sci_redir.php?doi=10.2140%2Fagt.2015.15.3059" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.2140/agt.2015.15.3059'); alert('Copied the doi');">copy doi</a> <small>(10.2140/agt.2015.15.3059)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_9')">+1 more source</a></small><br></div><div class="r"><p class="r_title"><a href="https://doi.org/10.1007/978-981-10-2636-2_29" target="_blank" rel="nofollow">Anti de Sitter Holography via Sekiguchi Decomposition</a> </p><span class="r_subtitle"><img src="/img/openaccess.ico" alt="open access: yes" title="open access: yes" width="16" height="16">, 2016 </span><br><span class="r_content">In the present paper we start consideration of anti de Sitter holography in the general case of the (q+1)-dimensional anti de Sitter bulk with boundary q-dimensional Minkowski space-time.</span><br><span class="r_sub"><i>C Fronsdal<span id="ma_10" style="display:none">, E Angelopoulos, E Witten, H Nicolai, J Sekiguchi, M Flato, N Aizawa, P Breitenlohner, R Hotta, S Ferrara, SS Gubser, VK Dobrev, VK Dobrev, W Schmid</span>   <small><a href="#" style="color:#808080;" onClick="return toggle_div(this, 'ma_10')">+13 more</a></small></i></span><br><small><a href="https://core.ac.uk/works/37684342" target="_blank" rel="nofollow" title="core.ac.uk/works/37684342">core</a> </small>   <div id="more_10" style="display:none"><a href="/sci_redir.php?doi=10.1007%2F978-981-10-2636-2_29" target="_blank" rel="nofollow">openaccessbutton.org (pdf)</a><br><a href="javascript:navigator.clipboard.writeText('10.1007/978-981-10-2636-2_29'); alert('Copied the doi');">copy doi</a> <small>(10.1007/978-981-10-2636-2_29)</small><br></div><small><a href="#" onClick="return toggle_div(this, 'more_10')">+1 more source</a></small><br></div><div class="r"><div style="margin-bottom:2px;overflow:hidden"><div style="display: inline-block; float: left; font-size: small; padding-right: 16px; margin-top: -1px; padding-bottom: 1px;"><a href="/q-differential_geometry_of_homogeneous_manifolds/" class="suggestion"onclick="show_loader();"><b>differential geometry of homogeneous manifolds</b></a><br/><a href="/q-fos%3A_mathematics/" class="suggestion"onclick="show_loader();"><b>fos: mathematics</b></a><br/><a href="/q-homogeneous_spaces/" class="suggestion"onclick="show_loader();"><b>homogeneous spaces</b></a><br/></div><div style="display: inline-block; float: left; font-size: small; padding-right: 16px; margin-top: -1px; padding-bottom: 1px;"><a href="/q-ricci_tensor/" class="suggestion"onclick="show_loader();"><b>ricci tensor</b></a><br/><a href="/q-mathematics/" class="suggestion"onclick="show_loader();"><b>mathematics</b></a><br/><a href="/q-12._responsible_consumption/" class="suggestion"onclick="show_loader();"><b>12. responsible consumption</b></a><br/></div><div style="display: inline-block; 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