Results 211 to 220 of about 71,517 (254)

Differential Equations on Functions from R into Real Banach Space

open access: yesDifferential Equations on Functions from R into Real Banach Space
openaire  

Functional equations for the functions of real variables

Moscow University Computational Mathematics and Cybernetics, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
S S Marchenkov, Marchenkov S S
exaly   +2 more sources

Real-Time Equation-of-Motion CCSD Cumulant Green’s Function

Journal of Chemical Theory and Computation, 2022
Many-body excitations in X-ray photoemission spectra have been difficult to simulate from first principles. We have recently developed a cumulant-based one-electron Green's function method using the real-time coupled-cluster-singles equation-of-motion approach (RT-EOM-CCS) that provides a general framework for treating these problems.
F. D. Vila   +4 more
openaire   +2 more sources

REAL THETA-FUNCTION SOLUTIONS OF THE KADOMTSEV–PETVIASHVILI EQUATION

Mathematics of the USSR-Izvestiya, 1989
This paper is devoted to the problem of extracting the smooth real solutions of the Kadomtsev-Petviashvili equation from the class of quasi- periodic complex meromorphic solutions constructed by I. M. Krichever. Necessary and sufficient conditions for smoothness and reality of the solutions are found.
Dubrovin, Boris, Natanzon, Sergei
openaire   +2 more sources

Functional equation of Dhombres type in the real case

Publicationes Mathematicae Debrecen, 2011
We consider continuous solutions f : R+ ! R+ = (0,1) of the functional equation f(xf(x)) = o(f(x)) where o is a given continuous map R+ ! R+. If o is an increasing homeomorphism the solutions are completely described, if not there are only partial results. In this paper we bring some necessary conditions upon a possible range Rf .
LUDWIG REICH   +2 more
openaire   +1 more source

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