Results 31 to 40 of about 2,437,992 (325)

Thermality and heat content of horizons from infinitesimal coordinate transformations [PDF]

, 2013
Thermal properties of a static horizon (like the entropy S, heat content TS, etc.) can be obtained either from the surface term of the Einstein–Hilbert action or by evaluating the Noether charge, corresponding to the diffeomorphisms generated by the ...
Bibhas Ranjan Majhi, T. Padmanabhan
semanticscholar   +1 more source

Double Hodge Theory for a Particle on Torus

Advances in High Energy Physics, 2017
We investigate all possible nilpotent symmetries for a particle on torus. We explicitly construct four independent nilpotent BRST symmetries for such systems and derive the algebra between the generators of such symmetries. We show that such a system has
Vipul Kumar Pandey, Bhabani Prasad Mandal   +1 more
doaj   +1 more source

Nonlocal symmetries of Frobenius sinh-Gordon systems

Advances in Difference Equations, 2018
In this paper, we consider a weakly coupled sinh-Gordon equation which takes values in a commutative Frobenius subalgebra of gl(2,C) $gl(2,\mathbb {C})$.
Huijuan Zhou, Chuanzhong Li, Xinyue Li, Fushan Li   +3 more
doaj   +1 more source

Shear Transformation Zones: State determined or protocol dependent? [PDF]

, 2014
The concept of a Shear Transformation Zone (STZ) refers to a region in an amorphous solid that undergoes a plastic event when the material is put under an external mechanical load.
O. Gendelman, Prabhat K. Jaiswal, I. Procaccia, Bhaskar Sen Gupta, Jacques Zylberg   +4 more
semanticscholar   +1 more source

Affine Transformations of Itô Diffusions and their Transition Densities

Walailak Journal of Science and Technology, 2011
For a given Itô diffusion, we derive the forward Kolmogorov equation (FKE) associated with the adjoint operator of the infinitesimal generator of an affine transformation of the given Itô diffusion. The fundamental solution obtained by solving the FKE is,
Sanae RUJIVAN
doaj   +1 more source

Gauge Structure of Vacuum String Field Theory

, 2003
We study the gauge structure of vacuum string field theory expanded around the D-brane solution, namely, the gauge transformation and the transversality condition of the massless vector fluctuation mode.
H Hata, H Kogetsu, H. Hata, H. Hata, H. Hata, H. Hata, I. Kishimoto, K. Okuyama, L. Rastelli, L. Rastelli, L. Rastelli, L. Rastelli, L. Rastelli, L. Rastelli, S Teraguchi, V.A. Kostelecký, Y. Imamura, Y. Okawa   +17 more
core   +1 more source

Darboux Transformations, Infinitesimal Symmetries and Conservation Laws for Nonlocal Two-Dimensional Toda Lattice

, 2002
The technique of Darboux transformation is applied to nonlocal partner of two-dimensional periodic A_{n-1} Toda lattice. This system is shown to admit a representation as the compatibility conditions of direct and dual overdetermined linear systems with ...
Benjamin T B, Benjamin T B, Bobenko A I, Bogoyavlenskii O I, Bogoyavlenskii O I, Case K M, Davis R E, Degasperis A, Degasperis A, Hirota R, Joseph R I, Joseph R I, Kubota T, Matsuno Y, Matveev V B, Matveev V B, Mikhailov A V, Mikhailov A V, N V Ustinov, Nakamura A, Novikov S P, Ono H, Salle M A   +22 more
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Causal symmetries [PDF]

, 2002
Based on the recent work \cite{PII} we put forward a new type of transformation for Lorentzian manifolds characterized by mapping every causal future-directed vector onto a causal future-directed vector. The set of all such transformations, which we call
Alfonso Garc a-Parrado, Bergqvist G, Bonanos S, García-Parrado A, García-Parrado A, Hall G S, Harris S G, Hilgert J, Jos M M Senovilla, Mars M, Pozo J M, Senovilla J M M, Senovilla J M M   +12 more
core   +4 more sources

Invariant Variation Problems [PDF]

, 2005
The problems in variation here concerned are such as to admit a continuous group (in Lie's sense); the conclusions that emerge from the corresponding differential equations find their most general expression in the theorems formulated in Section 1 and ...
LeBorgne, T, Lester, D, Meheust, Y, Turuban, R   +3 more
core   +2 more sources

Infinitesimal invariance transformations [PDF]

Il Nuovo Cimento A, 1972
We consider the infinitesimal invariance of a Lagrangian density up to a divergence. The condition for such an infinitesimal invariance is formulated as a set of differential identities. An example demonstrates the type of calculations involved in applications of these conditions.
openaire   +1 more source