Results 61 to 70 of about 198,875 (210)

Dirac eigenvalues and eigenvectors at finite temperature

, 2000
We investigate the eigenvalues and eigenvectors of the staggered Dirac operator in the vicinity of the chiral phase transition of quenched SU(3) lattice gauge theory. We consider both the global features of the spectrum and the local correlations. In the
A. Schäfer, Akemann it, Banks, Berbenni-Bitsch, Bernard, Boyd, Brézin, Chandrasekharan, Chandrasekharan, Damgaard, Farchioni, Guhr, H. Hehl, Janik, Janik, Jansen, Leutwyler, M. Göckeler, Meisinger, Osborn, Osborn, Osborn, P.E.L. Rakow, Shuryak, Stephanov, T. Wettig, Thouless, Verbaarschot, W. Söldner   +28 more
core   +1 more source

Improved method for correcting sample Mahalanobis distance without estimating population eigenvalues or eigenvectors of covariance matrix

International Journal of Data Science and Analysis, 2019
The recognition performance of the sample Mahalanobis distance (SMD) deteriorates as the number of learning samples decreases. Therefore, it is important to correct the SMD for a population Mahalanobis distance (PMD) such that it becomes equivalent to ...
Yasuyuki Kobayashi
semanticscholar   +1 more source

Molecular van der Waals Space and Topological Indices from the Distance Matrix

Molecules, 2004
A comparative study of 36 molecular descriptors derived from the topologicaldistance matrix and van der Waals space is carried out within this paper.
Seiman Corina, Dan Dragos, Ciprian Ciubotariu, Tudor Olariu, Vicentiu Vlaia, Mihai Medeleanu, Dan Ciubotariu   +6 more
doaj   +1 more source

The Rabi Oscillation in Subdynamic System for Quantum Computing

Advances in Mathematical Physics, 2015
A quantum computation for the Rabi oscillation based on quantum dots in the subdynamic system is presented. The working states of the original Rabi oscillation are transformed to the eigenvectors of subdynamic system. Then the dissipation and decoherence
Bi Qiao, Gu Jiayin
doaj   +1 more source

An Example of Symmetry Exploitation for Energy-related Eigencomputations

, 2009
One of the most used approaches in simulating materials is the tight-binding approximation. When using this method in a material simulation, it is necessary to compute the eigenvalues and eigenvectors of the Hamiltonian describing the system. In general,
Bientinesi, Paolo, Di Napoli, Edoardo, Petschow, Matthias   +2 more
core  

Using Nikiforov-Uvarov Method to Find the Single-Particle Nuclear States for Harmonic-Oscillator Potential

Science Journal of University of Zakho, 2018
In this study the energy spectrum and Eigenvectors with a special type of central potential will be obtained by using Nikiforov-Uvarov method. The method covers a new algebraic technique to  make an exact diagonalization to find the eigenvalues and ...
Aziz H. Rahim, Nzar R. Abdullah
doaj  

A Pedestrian Introduction to Gamow Vectors

, 2002
The Gamow vector description of resonances is compared with the S-matrix and the Green function descriptions using the example of the square barrier potential.
Groom D. E., Khalfin L. A., M. Gadella, R. de la Madrid   +3 more
core   +1 more source

APPLICATION OF THE RANDOM MATRIX THEORY ON THE CROSS-CORRELATION OF STOCK ‎PRICES [PDF]

International Journal of Mathematical Modelling & Computations, 2016
The analysis of cross-correlations is extensively applied for understanding of interconnections in stock markets. Variety of methods are used in order to search stock cross-correlations including the Random Matrix Theory (RMT), the Principal Component ...
F. Sotoude Vanoliya, A. Pourdarvish Heydari   +1 more
doaj  

An integral method for solving nonlinear eigenvalue problems

, 2010
We propose a numerical method for computing all eigenvalues (and the corresponding eigenvectors) of a nonlinear holomorphic eigenvalue problem that lie within a given contour in the complex plane.
A. Jentzen, A. Jentzen, B. Øksendal, C.T.H. Baker, D.B. Hernández, D.J. Higham, D.J. Higham, E. Buckwar, E. Buckwar, E. Buckwar, E. Buckwar, E. Hairer, G.G. Dahlquist, G.N. Milstein, G.N. Milstein, H.J. Stetter, J.M.C. Clark, L. Arnold, M. Hutzenthaler, M. Wiktorsson, M.B. Giles, M.B. Giles, M.N. Spijker, P.D. Lax, P.E. Kloeden, P.E. Kloeden, R. Kruse, R. Winkler, R.D. Grigorieff, Raphael Kruse, T. Rydén, W.J. Beyn, X. Mao   +32 more
core   +1 more source

Generalization of the Analytical Exponential Model for Homogeneous Reactor Kinetics Equations

Journal of Applied Mathematics, 2012
Mathematical form for two energy groups of three-dimensional homogeneous reactor kinetics equations and average one group of the precursor concentration of delayed neutrons is presented.
Abdallah A. Nahla, Mohammed F. Al-Ghamdi
doaj   +1 more source