Results 31 to 40 of about 1,463 (147)

Out of Equilibrium Thermal Field Theories - Finite Time after Switching on the Interaction - Wigner Transforms of Projected Functions [PDF]

, 2000
We study out of equilibrium thermal field theories with switching on the interaction occurring at finite time using the Wigner transforms (in relative space-time) of two-point functions.
A. J. Niemi, A. Niégawa, A. Niégawa, C. Greiner, C. Greiner, D. A. Brown, D. Boyanovsky, D. C. Langreth, E. A. Remler, E. Braaten, E. Calzetta, H. Defu, I. Dadić, I. Dadić, J. Baacke, J. Frenkel, J. Rammer, J. Schwinger, J.-P. Blaizot, K. Morawetz, K.-C. Chou, L. P. Kadanoff, L. V. Keldysh, M. E. Carrington, M. Le Bellac, M. Le Bellac, M. Tohyama, M. Tohyama, N. P. Landsman, O. Eboli, P. A. Henning, P. A. Henning, P. Danielewicz, P. F. Bedaque, P. Grangé, P. V. Landshoff, P.-G. Reinhard, R. Baier, R. Baier, R. Baier, R. D. Pisarski, R. E. A. C. Paley, T. Altherr, T. Altherr   +43 more
core   +5 more sources

Reformulated Zagreb Indices of Some Derived Graphs

Mathematics, 2019
A topological index is a numeric quantity that is closely related to the chemical constitution to establish the correlation of its chemical structure with chemical reactivity or physical properties.
Jia-Bao Liu, Bahadur Ali, Muhammad Aslam Malik, Hafiz Muhammad Afzal Siddiqui, Muhammad Imran   +4 more
doaj   +1 more source

On the maximum and minimum first reformulated Zagreb index of graphs with connectivity at most k

Filomat, 2011
The authors Milicevic et al. introduced the reformulated Zagreb indices [1], which is a generalization of classical Zagreb indices of chemical graph theory. In this paper, we mainly consider the maximum and minimum for the first reformulated index of graphs with connectivity at most k. The corresponding extremal graphs are characterized.
Su, Guifu, Xiong, Liming, Xu, Lan, Ma, Beibei   +3 more
openaire   +3 more sources

Extremal trees with respect to the first and second reformulated Zagreb index

Malaya Journal of Matematik, 2017
Let $G$ be a graph with edge set $E(G)$. The first and second reformulated Zagreb indices of $G$ are defined as $E M_1(G)=\sum_{e \in E(G)} \operatorname{deg}(e)^2$ and $E M_2(G)=\sum_{e \sim f} \operatorname{deg}(e) \operatorname{deg}(f)$,respectively, where $\operatorname{deg}(e)$ denotes the degree of the edge $e$, and $e \sim f$ means that the ...
null Ali Ghalavand, null Ali Reza Ashrafi   +1 more
openaire   +1 more source

Octonion Quantum Chromodynamics

, 2012
Starting with the usual definitions of octonions, an attempt has been made to establish the relations between octonion basis elements and Gell-Mann \lambda matrices of SU(3)symmetry on comparing the multiplication tables for Gell-Mann \lambda matrices of
A. Cayley, A.M. Polyakov, B. C. Chanyal, B. Julia, B.C. Chanyal, B.C. Chanyal, C. Castro, C.A. Manogue, D. Zwanzinger, G. ’t Hooft, J. Schwinger, J.C. Baez, K. Morita, K. Morita, K. Morita, L.E. Dickson, M. Günaydin, M. Günaydin, O. P. S. Negi, O.P.S. Negi, P. S. Bisht, P.A.M. Dirac, P.G. Tait, P.S. Bisht, Pushpa, Pushpa, R. Foot, R. Foot, R.P. Graves, S. Marques, T. Kugo, Tianjun Li, W.R. Hamilton   +32 more
core   +1 more source

Covariant canonical quantization of fields and Bohmian mechanics

, 2004
We propose a manifestly covariant canonical method of field quantization based on the classical De Donder-Weyl covariant canonical formulation of field theory.
70, Banks, Barbosa, Bohm, Bohm, Crnković, deBarros, Esposito, Fabris, Gaul, Grant, H. Nikolić, Holland, Horton, Hořava, Kanatchikov, Kanatchikov, Kanatchikov, Kastrup, Marto, Padmanabhan, Padmanabhan, Pinto-Neto, Pinto-Neto, Rieth, Shojai, Thiemann, Valentini   +27 more
core   +1 more source

The Extremal Graphs of Some Topological Indices with Given Vertex k-Partiteness

Mathematics, 2018
The vertex k-partiteness of graph G is defined as the fewest number of vertices whose deletion from G yields a k-partite graph. In this paper, we characterize the extremal value of the reformulated first Zagreb index, the multiplicative-sum Zagreb index,
Fang Gao, Xiaoxin Li, Kai Zhou, Jia-Bao Liu   +3 more
doaj   +1 more source

Pion photo- and electroproduction and the chiral MAID interface

, 2015
We discuss the extended on-mass-shell scheme for manifestly Lorentz-invariant baryon chiral perturbation theory. We present a calculation of pion photo- and electroproduction up to and including order $q^4$.
Hilt, M., Lehnhart, B. C., Scherer, S., Tiator, L.   +3 more
core   +2 more sources

Quantum space and quantum completeness

, 2018
Motivated by the question whether quantum gravity can "smear out" the classical singularity we analyze a certain quantum space and its quantum-mechanical completeness.
Jurić, Tajron
core   +1 more source

BGG complexes in singular blocks of category O

, 2019
Using translation from the regular block, we construct and analyze properties of BGG complexes in singular blocks of BGG category ${\mathcal{O}}$. We provide criteria, in terms of the Kazhdan-Lusztig-Vogan polynomials, for such complexes to be exact.
Mazorchuk, Volodymyr, Mrđen, Rafael
core   +1 more source