Results 31 to 40 of about 1,471 (144)

Zagreb indices of block-edge transformation graphs and their complements

Indonesian Journal of Combinatorics, 2017
In this paper, we obtain expressions for first and second Zagreb indices and coindices of block-edge transformation graphs G^{ab}. Analogous expressions are obtained also for the complements of G^{ab}.
Bommanahal Basavanagoud, Shreekant Patil
doaj   +1 more source

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

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

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

Norm-variation of ergodic averages with respect to two commuting transformations

, 2017
We study double ergodic averages with respect to two general commuting transformations and establish a sharp quantitative result on their convergence in the norm.
Durcik, Polona, Kovač, Vjekoslav, Thiele, Christoph, Škreb, Kristina Ana   +3 more
core   +1 more source

A numerical comparison of solvers for large-scale, continuous-time algebraic Riccati equations and LQR problems

, 2020
In this paper, we discuss numerical methods for solving large-scale continuous-time algebraic Riccati equations. These methods have been the focus of intensive research in recent years, and significant progress has been made in both the theoretical ...
Benner, Peter, Bujanović, Zvonimir, Kürschner, Patrick, Saak, Jens   +3 more
core   +1 more source

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

Exploring Graph Product Operations Through Eccentricity Connectivity Coindex: A Comprehensive QSPR Analysis of Octane Isomers

Journal of Mathematics, Volume 2026, Issue 1, 2026.
In this article, the first eccentricity connectivity coindex is introduced as ECI¯G=∑uv∉EGε2u+ε2v, in which ε(u) denotes the eccentricity of the vertex u in the simple connected graph G. Then, the exact expressions are obtained for the first eccentricity connectivity coindex of some graph products.
Suha Wazzan, Gul Ozkan Kizilirmak, Zafar Ullah   +2 more
wiley   +1 more source