Results 1 to 10 of about 218,478 (262)

Root Operators and “Evolution” Equations [PDF]

open access: yesMathematics, 2015
Root-operator factorization à la Dirac provides an effective tool to deal with equations, which are not of evolution type, or are ruled by fractional differential operators, thus eventually yielding evolution-like equations although for a multicomponent ...
Giuseppe Dattoli, Amalia Torre
doaj   +4 more sources

Variational quantum evolution equation solver [PDF]

open access: yesScientific Reports, 2022
Variational quantum algorithms offer a promising new paradigm for solving partial differential equations on near-term quantum computers. Here, we propose a variational quantum algorithm for solving a general evolution equation through implicit time ...
Fong Yew Leong   +2 more
doaj   +2 more sources

Stability of well-posed stochastic evolution equation [PDF]

open access: yesHeliyon, 2019
The stability of a non-classical stochastic evolution equation with impulsive and nonlocal initial conditions is examined from a general perspective.
S.A. Bishop, S.A. Iyase, H.I. Okagbue
doaj   +2 more sources

Evolution equation for quantum coherence. [PDF]

open access: yesSci Rep, 2016
AbstractThe estimation of the decoherence process of an open quantum system is of both theoretical significance and experimental appealing. Practically, the decoherence can be easily estimated if the coherence evolution satisfies some simple relations. We introduce a framework for studying evolution equation of coherence.
Hu ML, Fan H.
europepmc   +5 more sources

Evolution of the Wilson–Cowan equations [PDF]

open access: yesBiological Cybernetics, 2021
The Wilson-Cowan equations were developed to provide a simplified yet powerful description of neural network dynamics. As such, they embraced nonlinear dynamics, but in an interpretable form. Most importantly, it was the first mathematical formulation to emphasize the significance of interactions between excitatory and inhibitory neural populations ...
Hugh R. Wilson, Jack D. Cowan
openaire   +3 more sources

Finite-Approximate Controllability of Riemann–Liouville Fractional Evolution Systems via Resolvent-Like Operators

open access: yesFractal and Fractional, 2021
This paper presents a variational method for studying approximate controllability and infinite-dimensional exact controllability (finite-approximate controllability) for Riemann–Liouville fractional linear/semilinear evolution equations in Hilbert spaces.
Nazim I. Mahmudov
doaj   +1 more source

ON PROPER TIME OF THE SOURCE OF A STRONG EARTHQUAKE

open access: yesГеодинамика и тектонофизика, 2023
The physics of earthquakes was contriubuted to by the concept of proper time of the source of a strong earthquake, which is different from universal (calendar) time. The earlier idea of proper time was implicit and has been considered only in relation to
A. V. Guglielmi   +3 more
doaj   +1 more source

Classifying evolution equations [PDF]

open access: yesNonlinear Analysis, 2001
A Lie point symmetry classification of evolution equations in 1+1 time-space dimensions was presented.
Basarab-Horwath, P.   +2 more
openaire   +1 more source

Electroweak evolution equations [PDF]

open access: yesJournal of High Energy Physics, 2005
15 pages, 3 ...
Ciafaloni, Paolo, Comelli, Denis
openaire   +2 more sources

Solvability of the abstract evolution equations in Ls-spaces with critical temporal weights

open access: yesOpen Mathematics, 2021
This paper deals with the abstract evolution equations in Ls{L}^{s}-spaces with critical temporal weights. First, embedding and interpolation properties of the critical Ls{L}^{s}-spaces with different exponents ss are investigated, then solvability of ...
Zhang Qinghua, Tan Zhizhong
doaj   +1 more source

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