Results 31 to 40 of about 4,147,379 (313)
The space generated by metric and torsion tensors, derivation of Einstein-Hilbert equation
Pracì Mìžnarodnogo Geometričnogo Centru, 2014 This paper is devoted to the derivation of field equations in space with the geometric structure generated by metric and torsion tensors. We also study the geometry of the space are generated jointly and agreed by the metric tensor and the torsion tensor.
Николай Иванович Яременко
doaj +1 more source
Randomized CP tensor decomposition [PDF]
Machine Learning: Science and Technology, 2017 The CANDECOMP/PARAFAC (CP) tensor decomposition is a popular dimensionality-reduction method for multiway data. Dimensionality reduction is often sought after since many high-dimensional tensors have low intrinsic rank relative to the dimension of the ...
N. Benjamin Erichson +3 more
semanticscholar +1 more source
Neutrino and antineutrino quasielastic interactions with nuclei [PDF]
, 2010 We investigate the interaction of neutrinos and antineutrinos with nuclei. We explore in particular the role played by the multinucleon excitations which can contaminate the quasielastic cross section.
Chanfray, G. +3 more
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Fast spectral algorithms from sum-of-squares proofs: tensor decomposition and planted sparse vectors [PDF]
Symposium on the Theory of Computing, 2015 We consider two problems that arise in machine learning applications: the problem of recovering a planted sparse vector in a random linear subspace and the problem of decomposing a random low-rank overcomplete 3-tensor.
Samuel B. Hopkins +3 more
semanticscholar +1 more source
Slow-roll inflationary senario in the maximally extended background [PDF]
, 2015 During the inflationary epoch,geometry of the universe may be described by quasi-de Sitter space. On the other hand,maximally extended de Sitter metric in the comoving coordinates accords with a special FLRW model with positive spatial curvature,so in ...
Abbassi, A. H., Asgari, A. A.
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Thermal Wightman Functions and Renormalized Stress Tensors in the Rindler Wedge [PDF]
, 1995 The Wightman functions in the Rindler portion of Minkowski space-time are presented for any value of the temperature and for massless spin fields up to s=1 and the renormalized stress tensor relative to Minkowski vacuum is discussed. A gauge ambiguity in
Allen +33 more
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Implementable tensor methods in unconstrained convex optimization
Mathematical programming, 2019 In this paper we develop new tensor methods for unconstrained convex optimization, which solve at each iteration an auxiliary problem of minimizing convex multivariate polynomial.
Y. Nesterov
semanticscholar +1 more source
Spectral norm of a symmetric tensor and its computation [PDF]
Mathematics of Computation, 2018 We show that the spectral norm of a $d$-mode real or complex symmetric tensor in $n$ variables can be computed by finding the fixed points of the corresponding polynomial map.
S. Friedland, Li Wang
semanticscholar +1 more source
, 2018 This paper is concerned with the approximation of tensors using tree-based tensor formats, which are tensor networks whose graphs are dimension partition trees. We consider Hilbert tensor spaces of multivariate functions defined on a product set equipped
Nouy, Anthony
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Generalized Slow Roll for Tensors
, 2014 The recent BICEP2 detection of degree scale CMB B-mode polarization, coupled with a deficit of observed power in large angle temperature anisotropy, suggest that the slow-roll parameter $\epsilon_H$, the fractional variation in the Hubble rate per efold,
Hu, Wayne
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