Results 241 to 250 of about 663,196 (288)

Evolution's hidden architecture: a non-lipschitz theory of creation and catastrophe. [PDF]

BMC Ecol Evol
Durán-Olivencia MA.
europepmc   +1 more source

Improving the Precision of First-Principles Calculation of Parton Physics from Lattice Quantum Chromodynamics. [PDF]

Research (Wash D C)
Zhao Y.
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Intertwined evolution operators

Semigroup Forum, 2016
The authors introduce test function spaces of Banach-space-valued functions defined on an abelian group and study homomorphisms from the test functions to the underlying Banach space which are admissible in the sense that homomorphisms of translates are test functions. These homomorphisms induce linear mappings, so-called dualisms, in the test function
Lee, Wha-Suck, Sauer, Niko
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Evolution operators generated by non‐densely defined operators

Mathematische Nachrichten, 2005
AbstractIn this paper it is shown that an evolution operator is generated by a family of closed linear operators whose common domain is not necessarily dense in the underlying Banach space, under the stability condition proposed by the second author from the viewpoint of finite difference approximations. (© 2005 WILEY‐VCH Verlag GmbH & Co.
Oka, Hirokazu, Tanaka, Naoki
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FEL time-evolution operator

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1991
Abstract The FEL wave equation accounting for the longitudinal or/and transverse mode dynamics in the small-signal regime is reviewed within the context of a general operator approach to nonlocal integral-differential equations. The effects of the longitudinal and transverse variations of the optical field are accounted for by means of simple and ...
G. Dattoli, L. Giannessi, L. Mezi, A. Torre, R. Caloi   +4 more
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Spline-wavelet factorization for evolution operator

Journal of Interdisciplinary Mathematics, 2004
In this paper, the wavelet solution of heat equation is considered and compared with spline approximation.
CATTANI, Carlo, LASERRA, Ettore, TORTORIELLO, FRANCESCO SAVERIO   +2 more
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Operational Research and Evolution

Journal of the Operational Research Society, 1986
A recent paper presented an operational research solution to the problem of evolution, which applies to both social and biological systems alike. This paper discusses some of the broader methodological issues connected with evolutionary systems, and highlights the significance of this operational research contribution to the development of scientific ...
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Probabilistic Approximation of the Evolution Operator

Functional Analysis and Its Applications, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ibragimov, I. A., Smorodina, N. V., Faddeev, M. M.   +2 more
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Feynman's Operational Calculus and Evolution Equations

Acta Applicandae Mathematica, 1997
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DeFacio, Brian, Johnson, Gerald W., Lapidus, Michel L.   +2 more
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