Results 31 to 40 of about 281,793 (289)

A lecture on the Liouville vertex operators

open access: yes, 2003
We reconsider the construction of exponential fields in the quantized Liouville theory. It is based on a free-field construction of a continuous family or chiral vertex operators.
Barnes E. W.   +10 more
core   +2 more sources

Gabor representations of evolution operators [PDF]

open access: yes, 2015
We perform a time-frequency analysis of Fourier multipliers and, more generally, pseudodifferential operators with symbols of Gevrey, analytic and ultra-analytic regularity.
Cordero, Elena   +2 more
core   +2 more sources

The q-exponential operator

open access: yesApplied Mathematical Sciences, 2013
We define a q-exponential operator R(bDq) which turn out to be suitable for dealing with the Cauchy polynomials Pn(x,y) and the ...
Husam L. Saad, Abbas A. Sukhi
openaire   +1 more source

Exponential Stability of Operators and Operator Semigroups

open access: yesJournal of Functional Analysis, 1995
Extending earlier results of Datko, Pazy, and Littman on \(C_0\)- semigroups, and of Przyluski and Weiss on operators, the author proves the following: Let \(T\) be a bounded linear operator on a Banach space \(X\) and let \(r(T)\) denote its spectral radius.
openaire   +2 more sources

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Einstein Exponential Operational Laws Based on Fractional Orthotriple Fuzzy Sets and Their Applications in Decision Making Problems

open access: yesMathematics
The fractional orthotriple fuzzy set (FOFS) model is a recently created extension of fuzzy sets (FS) for coping with ambiguity in DM. The purpose of this study is to define new exponential and Einstein exponential operational (EO) laws for fractional ...
Muhammad Qiyas   +3 more
doaj   +1 more source

Positive Interpolation Operators with Exponential-Type Weights

open access: yesJournal of Applied Mathematics, 2013
We consider positive operators on the real line with property of interpolation, and we show the weighted -convergence of the operators. We will construct an analogical operator of one which is studied by Knopfmacher (1986).
Hee Sun Jung, Ryozi Sakai
doaj   +1 more source

Direct Estimate for Some Operators of Durrmeyer Type in Exponential Weighted Space

open access: yesDemonstratio Mathematica, 2014
In the present paper, we investigate the convergence and the approximation order of some Durrmeyer type operators in exponential weighted space. Furthermore, we obtain the Voronovskaya type theorem for these operators.
Krech Grażyna, Wachnicki Eugeniusz
doaj   +1 more source

Exponential dichotomies of evolution operators in Banach spaces

open access: yes, 2014
This paper considers three dichotomy concepts (exponential dichotomy, uniform exponential dichotomy and strong exponential dichotomy) in the general context of non-invertible evolution operators in Banach spaces.
B Sasu   +26 more
core   +1 more source

On commuting operator exponentials, II

open access: yesProceedings - Mathematical Sciences, 2013
The author treats the question of when the commutativity of the exponentials of normal operators imply that of the latter operators. The idea of proof is partly inspired by [\textit{M. H. Mortad}, Colloq. Math. 125, No. 1, 1--6 (2011; Zbl 1259.47002)]. Then the author generalizes his results to the case when one operator is unbounded and normal.
openaire   +2 more sources

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