Results 1 to 10 of about 2,707 (89)

A Gradient Descent Algorithm on the Grassman Manifold for Matrix Completion [PDF]

, 2009
26 pages, 15 ...
Keshavan, Raghunandan H., Oh, Sewoong
openaire   +3 more sources

Sobre la convergencia en el Grassmaniano

Selecciones Matemáticas, 2020
In this paper, we present a characterization of the convergence on the n-th order Grassmannian that permits us to show in a direct way that this set is compact and every vector bundle is measurable.
Helmuth Villavicencio
doaj   +1 more source

Geometry of semi-nonholonomic hypercomplexes SNGr(1, 4, 5) in a four-dimensional projective space

Lietuvos Matematikos Rinkinys, 2004
In this article the problem of intrinsic normalizations of plane distributions in an four-dimensional projective space is considered.
Kazimieras Navickis
doaj   +3 more sources

Optimal Mode Decomposition-Based Analysis of Electromechanical Oscillations of Power Systems Using Synchrophasors

IEEE Access, 2020
Synchrophasor-based electromechanical modes extraction offers essential information for monitoring the small-signal stability of power systems without models.
Deyou Yang, Jie Tian, Lixin Wang, Guowei Cai, Jin Ma, Bo Wang   +5 more
doaj   +1 more source

Grassman manifolds as subsets of Euclidean spaces

, 2021
Latex-reformatted version of the conference article "Grassman manifolds as subsets of Euclidean Spaces", in Differential Geometry, Proc. 5th Int. Colloq., Santiago de Compostela, Spain, 1984, Research Notes in Mathematics, 131, 85-102, Pitman Adv. Pub.
Machado, Armando, Salavessa, Isabel
openaire   +2 more sources

Generalized Semilocal Theories and Higher Hopf Maps [PDF]

, 1992
\def\mon{S^3\stackrel{S^1}{\rightarrow}S^2} \def\inst{S^7\stackrel{S^3}{\rightarrow}S^4} \def\octo{S^{15}\stackrel{S^7}{\rightarrow}S^8} In semilocal theories, the vacuum manifold is fibered in a non-trivial way by the action of the gauge group.
Abraham, Abrikosov, Abrikosov, Affleck, Brandenberger, Brézin, Coleman, Eguchi, Galicki, Gibbons, Gilmore, Gürsey, Hindmarsh, Hindmarsh, Hooft, Kibble, Klinkhamer, Manton, Mark Hindmarsh, Nash, Nielsen, Preskill, Preskill, Rajaraman, Richard Holman, Spergel, Spergel, Steenrod, Tanmay Vachaspati, Thomas W. Kephart, Turok, Turok, Vachaspati, Vachaspati, Vilenkin, Zel'dovich   +35 more
core   +2 more sources

Kinematical Hilbert Spaces for Fermionic and Higgs Quantum Field Theories [PDF]

, 1997
We extend the recently developed kinematical framework for diffeomorphism invariant theories of connections for compact gauge groups to the case of a diffeomorphism invariant quantum field theory which includes besides connections also fermions and Higgs
Ashtekar A, Ashtekar A, Ashtekar A, Ashtekar A, Ashtekar A, Ashtekar A, Barbero F, Choquet-Bruhat Y, DeWitt B, Glimm J, Higuchi A, Higuchi A, Jacobson T, Marolf D, Marolf D, Marolf D, Marolf D, T Thiemann, Thiemann T, Thiemann T, Thiemann T, Thiemann T, Thiemann T, Thiemann T, Yamasaki Y   +24 more
core   +3 more sources

Random Matrix Theory by the Supersymmetry Method Beyond the Sigma-Model

, 1997
The leading correction to the smoothed connected energy density-density correlation function is obtained for the large energy difference, within the context of the Gaussian Random Matrix Theory.
Ambjørn, Ambjørn, Ambjørn, Ambjørn, Ambjørn, Ambjørn, Andreev, Arnowitt, Beenakker, Beenakker, Beenakker, Berezin, Bohigas, Brézin, Brézin, Brézin, Brézin, Casati, Casati, Casati, David, Di Francesco, Dyson, Efetov, Fal'ko, Freilikher, Freilikher, Fyodorov, Fyodorov, Fyodorov, Fyodorov, Hackenbroich, Hikami, Hooft, Iida, Imry, Kravcov, Kravtsov, Lucˇić, Mehta, Mirlin, Müller-Groeling, Porter, Porter, Porter, Ramond, Seligman, Shuryak, Simons, Simons, Verbaarschot, Verbaarschot, Verbaarschot, Vladan Lucˇić, Wigner, Wigner, Wigner, Wolfram, Zirnbauer   +58 more
core   +1 more source

BRST quantization of quasi-symplectic manifolds and beyond

, 2003
We consider a class of \textit{factorizable} Poisson brackets which includes almost all reasonable Poisson structures. A particular case of the factorizable brackets are those associated with symplectic Lie algebroids.
A. A. Sharapov, Cannas da Silva A., Fedosov B. V., Fedosov B. V., Henneaux M., Rieffel M. A., S. L. Lyakhovich   +6 more
core   +1 more source

Weighted ℓ_1 minimization for sparse recovery with prior information [PDF]

, 2009
In this paper we study the compressed sensing problem of recovering a sparse signal from a system of underdetermined linear equations when we have prior information about the probability of each entry of the unknown signal being nonzero.
Avestimehr, A. Salman, Hassibi, Babak, Khajehnejad, M. Amin, Xu, Weiyu   +3 more
core   +1 more source