Results 1 to 10 of about 663,196 (288)
Using the Evolution Operator to Classify Evolution Algebras [PDF]
Mathematical and Computational Applications, 2021 Evolution algebras are currently widely studied due to their importance not only “per se” but also for their many applications to different scientific disciplines, such as Physics or Engineering, for instance.
Desamparados Fernández-Ternero +2 more
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Factorizing the time evolution operator [PDF]
Physica Scripta, 2006 There is a widespread belief in the quantum physical community, and in textbooks used to teach Quantum Mechanics, that it is a difficult task to apply the time evolution operator Exp{-itH/h} on an initial wave function.
Arévalo Aguilar L M +17 more
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Integral Characterizations for Uniform Stability with Growth Rates in Banach Spaces
Axioms, 2021 The aim of this paper is to present some integral characterizations for the concept of uniform stability with growth rates in Banach spaces. In this sense, we prove necessary and sufficient conditions (of Barbashin and Datko type) for an evolution ...
Rovana Boruga (Toma) +2 more
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EKO: evolution kernel operators
The European Physical Journal C, 2022 AbstractWe present a new QCD evolution library for unpolarized parton distribution functions: . The program solves DGLAP equations up to next-to-next-to-leading order. The unique feature of is the computation of solution operators, which are independent of the boundary condition, can be stored and quickly applied to evolve several initial PDFs.
Alessandro Candido +2 more
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Branching Random Walks with One Particle Generation Center and Possible Absorption at Every Point
Mathematics, 2023 We consider a new model of a branching random walk on a multidimensional lattice with continuous time and one source of particle reproduction and death, as well as an infinite number of sources in which, in addition to the walk, only the absorption of ...
Elena Filichkina, Elena Yarovaya
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Mathematics, 2021 According to the spatial dimension, equation type, and time sequence, the latest progress in controllability of stochastic linear systems and some unsolved problems are introduced. Firstly, the exact controllability of stochastic linear systems in finite
Zhaoqiang Ge
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Polynomial stability of evolution operators in Banach spaces [PDF]
Opuscula Mathematica, 2011 The paper considers three concepts of polynomial stability for linear evolution operators which are defined in a general Banach space and whose norms can increase not faster than exponentially.
Megan Mihail +2 more
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Geometric Operator Quantum Speed Limit, Wegner Hamiltonian Flow and Operator Growth [PDF]
Quantum, 2023 Quantum speed limits (QSLs) provide lower bounds on the minimum time required for a process to unfold by using a distance between quantum states and identifying the speed of evolution or an upper bound to it.
Niklas Hörnedal +3 more
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Root Operators and “Evolution” Equations [PDF]
Mathematics, 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 vector.
Dattoli, Giuseppe, Torre, Amalia
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Large Time Decay of Solutions to a Linear Nonautonomous System in Exterior Domains
Mathematics, 2021 In this expository paper, we study Lq-Lr decay estimates of the evolution operator generated by a perturbed Stokes system in n-dimensional exterior domains when the coefficients are time-dependent and can be unbounded at spatial infinity.
Toshiaki Hishida
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