Results 61 to 70 of about 325,405 (197)

Hypothesis Testing on Invariant Subspaces of the Symmetric Group, Part I - Quantum Sanov's Theorem and Arbitrarily Varying Sources

, 2013
We report a proof of the quantum Sanov Theorem by elementary application of basic facts about representations of the symmetric group, together with a complete characterization of the optimal error exponent in a situation where the null hypothesis is ...
Nötzel, J.
core   +1 more source

Geodesic stability, Lyapunov exponents and quasinormal modes [PDF]

, 2009
Geodesic motion determines important features of spacetimes. Null unstable geodesics are closely related to the appearance of compact objects to external observers and have been associated with the characteristic modes of black holes.
A. S. Barreto, Alex S. Miranda, B. Mashhoon, Emanuele Berti, Helvi Witek, J. R. Dorfman, Kostas D. Kokkotas, M. A. Podurets, M. A. Podurets, S. Chandrasekhar, S. L. Shapiro, Vilson T. Zanchin, Vitor Cardoso   +12 more
core   +2 more sources

Analytic study of self-gravitating polytropic spheres with light rings

, 2018
Ultra-compact objects describe horizonless solutions of the Einstein field equations which, like black-hole spacetimes, possess null circular geodesics (closed light rings).
Hod, Shahar
core   +1 more source

A Solution for Multi-Alignment by Transformation Synchronisation

, 2015
The alignment of a set of objects by means of transformations plays an important role in computer vision. Whilst the case for only two objects can be solved globally, when multiple objects are considered usually iterative methods are used.
Bernard, Florian, Gemmar, Peter, Goncalves, Jorge, Hertel, Frank, Husch, Andreas, Thunberg, Johan   +5 more
core   +1 more source

Hyperbolic evolution equations, Lorentzian holonomy, and Riemannian generalised Killing spinors

, 2017
We prove that the Cauchy problem for parallel null vector fields on smooth Lorentzian manifolds is well posed. The proof is based on the derivation and analysis of suitable hyperbolic evolution equations given in terms of the Ricci tensor and other ...
Leistner, Thomas, Lischewski, Andree
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Black hole boundaries

, 2005
Classical black holes and event horizons are highly non-local objects, defined in relation to the causal past of future null infinity. Alternative, quasilocal characterizations of black holes are often used in mathematical, quantum, and numerical ...
A., A., A., A., Aminneborg S., Andersson L., Ashtekar A., Ashtekar A., Ashtekar A., Ashtekar A., Ashtekar A., Ashtekar A., Ashtekar A., Bardeen J.M., Baumgarte T.W., Bernstein D., Booth I., Booth I., Brown J.D., Chruciel P.T., D., D., E., Fairhurst S., Geroch R., Gonçalves S.M.C.V., Husain V., Ivan Booth, Kriele M., M., M., Pawlowski T., T., W., Wald R.M.   +34 more
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On the automatic link between affect and tendencies to approach and avoid: Chen and Bargh (1999) revisited.

Frontiers in Psychology, 2015
Within the literature on emotion and behavioral action, studies on approach-avoidance take up a prominent place. Several experimental paradigms feature successful conceptual replications but many original studies have not yet been replicated directly. We
Mark eRotteveel, Mark eRotteveel, Alex eGierholz, Gijs eKoch, Cherelle eVan Aalst, Yair ePinto, Yair ePinto, Dora eMatzke, Helen eSteingroever, Josine eVerhagen, Titia Francisca Beek, Ravi eSelker, Adam eSasiadek, Eric-Jan eWagenmakers, Eric-Jan eWagenmakers   +14 more
doaj   +1 more source

Generic Null Objects in Spanish

Revista Española de Lingüística
This paper explores the grammatical constraints operating on Spanish generic null objects (e.g. Esta película sorprende Ø ‘this film surprises’), as well as their syntactic representation.
Carlos Martínez-García
doaj  

Reliability of Partitioning Metric Space Data

Mathematics
The process of sorting or categorizing objects or information about these objects into clusters according to certain criteria is a fundamental procedure in data analysis.
Yariv N. Marmor, Emil Bashkansky
doaj   +1 more source

Brazilian Portuguese null objects and Spanish differential object marking

, 2021
Animacy features have been known to trigger syntactic phenomena. In this paper, I focus on differential object marking (DOM), and the null object in Brazilian Portuguese, where such features are relevant. I assume that animacy corresponds to a specification of Person features, and lack of animacy implies that no Person features are encoded in a DP ...
openaire   +1 more source