Results 51 to 60 of about 165,991,386 (194)
Tourism Research Frontiers: beyond the boundaries of Knowledge
PASOS Revista de Turismo y Patrimonio Cultural, 2015 This critical book review scrutinizes the recent project of Donna Chambers & Tijana Rakic, entitled Tourism research frontiers. As the name indicates, this book explores the needs of finding new themes of investigations in tourism fields in a every ...
Maximiliano Emanuel Korstanje
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A Generalized Phase-Field System
Journal of Mathematical Analysis and Applications, 1999 The authors consider the problem \((\Omega\) bounded domain in \(\mathbb{R}^N\) with \(C^2\)-boundary) \[ \begin{aligned} {\partial u\over\partial t}+l {\partial \varphi\over\partial t}=\Delta u+f(x,t), \quad & (x,t)\in Q:=\Omega \times(0,T),\\ {\partial\varphi \over\partial t}=\Delta\varphi+ F(x,t,\varphi) +u,\quad & (x,t)\in Q,\\ {\partial u\over ...
Moroşanu, Costică, Motreanu, Dumitru
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Matrix and tensor witnesses of hidden symmetry algebras
Journal of High Energy Physics, 2023 Permutation group algebras, and their generalizations called permutation centralizer algebras (PCAs), play a central role as hidden symmetries in the combinatorics of large N gauge theories and matrix models with manifest continuous gauge symmetries ...
Sanjaye Ramgoolam, Lewis Sword
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String generated by massless fields
Physics Letters B, 1987 Abstract It is shown that relativistic field equations for massless particles of spin j = 1 2 , 1 and 2 possess a class of solutions which generate in a natural manner the string's coordinates Xμ(τ, σ), which satisfy the string field equation and the string constraint equations.
FURLAN, PAOLO, Raczka R.
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Journal of NeuroEngineering and Rehabilitation, 2017 Background The possibility to modify the usually pathological patterns of coordination of the upper-limb in stroke survivors remains a central issue and an open question for neurorehabilitation.
Tommaso Proietti +3 more
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Relativistic Rotating Electromagnetic Fields
Advances in High Energy Physics, 2020 In this work, we consider axially symmetric stationary electromagnetic fields in the framework of special relativity. These fields have an angular momentum density in the reference frame at rest with respect to the axis of symmetry; their Poynting vector
H. Vargas-Rodríguez +4 more
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Least squares estimation of regression coefficients of singular random fields observed on a sphere [PDF]
, 2001 We present some results on the rate of convergence to the normal law of the least square estimates of the regression coefficient of random fields with long range dependence observed on a ...
Anh, Vo +5 more
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De Sitter vacua in no-scale supergravity
Journal of High Energy Physics, 2018 No-scale supergravity is the appropriate general framework for low-energy effective field theories derived from string theory. The simplest no-scale Kähler potential with a single chiral field corresponds to a compactification to flat Minkowski space ...
John Ellis +3 more
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The cosmological bootstrap: weight-shifting operators and scalar seeds
Journal of High Energy Physics, 2020 A key insight of the bootstrap approach to cosmological correlations is the fact that all correlators of slow-roll inflation can be reduced to a unique building block — the four-point function of conformally coupled scalars, arising from the exchange of ...
Daniel Baumann +4 more
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Layers of generality and types of generalization in pattern activities [PDF]
, 2010 Pattern generalization is considered one of the prominent routes for in-troducing students to algebra. However, not all generalizations are al-gebraic. In the use of pattern generalization as a route to algebra, we —teachers and educators— thus have to ...
Radford, Luis
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