Results 21 to 30 of about 166,092,251 (286)

The Perron Problem for C-Semigroups [PDF]

open access: yes, 2004
<p>Characterizations of Perron-type for the exponential stability of exponentially bounded C-semigroups are given. Also, some applications for the asymptotic behavior of the integrated semigroups are obtained.</p>
Prada, Petre   +2 more
core   +1 more source

Bearing Fault Diagnosis Based on Natural Adaptive Moment Estimation Algorithm and Improved Octave Convolution

open access: yesIEEE Access, 2020
Fault diagnosis of rolling bearing has been the focus of research. Bearing signals are often accompanied by similar information, resulting in redundancy between data.
Mei Ying Qiao   +3 more
doaj   +1 more source

Fractional calculus approach to study temperature distribution within a spinning satellite

open access: yesAlexandria Engineering Journal, 2016
This paper deals with the temperature distribution within spinning satellites and problem is formulated in terms of fractional differential equation.
Jyotindra C. Prajapati   +2 more
doaj   +1 more source

Time domain characterization of the Cole-Cole dielectric model

open access: yesJournal of Electrical Bioimpedance, 2020
The Cole-Cole model for a dielectric is a generalization of the Debye relaxation model. The most familiar form is in the frequency domain and this manifests itself in a frequency dependent impedance.
Holm Sverre
doaj   +1 more source

Exponential arcs in manifolds of quantum states

open access: yesFrontiers in Physics, 2023
The manifold under consideration consists of the faithful normal states on a sigma-finite von Neumann algebra in standard form. Tangent planes and approximate tangent planes are discussed. A relative entropy/divergence function is assumed to be given. It
Jan Naudts
doaj   +1 more source

Generalized Probability Functions

open access: yesAdvances in Mathematical Physics, 2009
From the integration of nonsymmetrical hyperboles, a one-parameter generalization of the logarithmic function is obtained. Inverting this function, one obtains the generalized exponential function.
Alexandre Souto Martinez   +2 more
doaj   +1 more source

Recursion Relations for Chromatic Coefficients for Graphs and Hypergraphs

open access: yesDiscussiones Mathematicae Graph Theory, 2022
We establish a set of recursion relations for the coefficients in the chromatic polynomial of a graph or a hypergraph. As an application we provide a generalization of Whitney’s broken cycle theorem for hypergraphs, as well as deriving an explicit ...
Durhuus Bergfinnur, Lucia Angelo
doaj   +1 more source

Estimation in functional regression for general exponential families [PDF]

open access: yesThe Annals of Statistics, 2012
This paper studies a class of exponential family models whose canonical parameters are specified as linear functionals of an unknown infinite-dimensional slope function. The optimal minimax rates of convergence for slope function estimation are established.
Dou, Winston Wei   +2 more
openaire   +4 more sources

Moments of orthogonal polynomials and exponential generating functions

open access: yesThe Ramanujan Journal, 2022
Starting from the moment sequences of classical orthogonal polynomials we derive the orthogonality purely algebraically. We consider also the moments of ($q=1$) classical orthogonal polynomials, and study those cases in which the exponential generating function has a nice form.
Ira M. Gessel, Jiang Zeng
openaire   +3 more sources

Approximation on a class of Phillips operators generated by q-analogue

open access: yesJournal of Inequalities and Applications, 2020
The main purpose of this article is to introduce a new generalization of q-Phillips operators generated by Dunkl exponential function. We establish some approximation results for these operators. We also determine the order of approximation, and the rate
Abdullah Alotaibi
doaj   +1 more source

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