Results 51 to 60 of about 822,876 (350)

Unified study on characteristic spectrum representation of signals and spectral decomposition for stationary random signals

Tongxin xuebao, 2018
The unified relationship between the signal characteristic spectrum representation and the spectral decomposition for the stationary random signal was deeply studied.
Hongyu WANG, Tianshuang QIU
doaj   +2 more sources

How to differentiate a quantum stochastic cocycle. [PDF]

, 2010
Two new approaches to the infinitesimal characterisation of quantum stochastic cocycles are reviewed. The first concerns mapping cocycles on an operator space and demonstrates the role of H\"older continuity; the second concerns contraction operator ...
Lindsay, J Martin, J Martin Lindsay, Lindsay, J. Martin   +2 more
core   +1 more source

A Problem for a Factorized Equation with a Pseudoparabolic Differential Operator

Russian Mathematics, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Three-dimensional integro-multipoint boundary value problem for loaded Volterra-hyperbolic integro-differential equations of Bianchi type

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2012
In this paper the combined three-dimensional non-local boundary value problem with integro-multipoint conditions for loaded volterra-hyperbolic integro-differential equation of Bianchi type is explored.
Ilgar G Mamedov
doaj   +3 more sources

Some sufficient conditions of existence and trajectory controllability for impulsive and initial value fractional order functional differential equations

Results in Control and Optimization, 2023
For a class of impulsive fractional differential equation with fractional order r∈(1,2)by means of solution operator Sr(t), we develop the mild solution and deal with the existence results of mild solution for the considered equation with state-dependent
Ganga Ram Gautam, Manoj Kumar, Arpit Dwivedi, Gunjan Rani, Namrata Arya, Jaimala Bishnoi   +5 more
doaj   +1 more source

Quantum stochastic operator cocycles via associated semigroups. [PDF]

, 2005
A recent characterisation of Fock-adapted contraction operator stochastic cocycles on a Hilbert space, in terms of their associated semigroups, yields a general principle for the construction of such cocycles by approximation of their stochastic ...
Wills, S. J., Stephen J. Wills, J. Martin Lindsay, Lindsay, J. Martin   +3 more
core  

Finite element heterogeneous multiscale methods for the wave equation [PDF]

, 2013
Wave phenomena appear in a wide range of applications such as full-waveform seismic inversion, medical imaging, or composite materials. Often, they are modeled by the acoustic wave equation.
Stohrer, Christian
core   +1 more source

The Samarskii-Ionkin type problem for the fourth order parabolic equation with fractional differential operator

Computers and Mathematics with Applications, 2011
In the present work the Samarskii-Ionkin type non-local problem with Caputo fractional order differential operator is studied. The considered problem generalizes some previous known problems formulated for some fourth order parabolic equations.
A. Berdyshev, A. Cabada, B. J. Kadirkulov   +2 more
semanticscholar   +1 more source

Heterogeneity in the Global Practice of Central Nervous System Staging in Pediatric Acute Lymphoblastic Leukemia

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Central nervous system (CNS) involvement in childhood acute lymphoblastic leukemia (ALL) is assessed by cell counting and cytomorphology from cerebrospinal fluid (CSF) and is used for treatment stratification worldwide. The ratio of “CNS2” patients in clinical trials ranges from 3% to 40%, with unclear prognostic significance ...
Laura Almási, Bernadett Borbála Huszti, Gábor Barna, Marko Kavcic, Janez Jazbec, Lennart Lenk, Vera Münch, Sophia Polychronopoulou, Ágnes Márk, Maria Thastrup, Lüder H. Meyer, Kjeld Schmiegelow, Cornelia Eckert, Christina Halsey, Dániel J. Erdélyi   +14 more
wiley   +1 more source

Psi_B-energy operator and cross-power spectral density [PDF]

, 2014
In this paper we consider the hermitian extension of the cross-Psi_B-energy operator that we will denote by Psi_H. In addition, cross energy terms are formalized through multivariate signals representation.
CHONAVEL, Thierry, CEXUS, Jean-Christophe, BOUDRAA, Abdel-Ouahab   +2 more
core   +1 more source