Results 21 to 30 of about 83,871 (280)

On certain integral functionals of squared Bessel processes [PDF]

open access: yes, 2015
Let $X$ be a squared Bessel process. Following a Feynman-Kac approach, the Laplace transforms of joint laws of $(U, \int_0^{R_y}X_s^p\,ds)$ are studied where $R_y$ is the first hitting time of $y$ by $X$ and $U$ is a random variable measurable with ...
Çetin, Umut
core   +3 more sources

Conditional generalized analytic Feynman integrals and a generalized integral equation

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2000
We use a generalized Brownian motion process to define a generalized Feynman integral and a conditional generalized Feynman integral. We then establish the existence of these integrals for various functionals.
Seung Jun Chang   +2 more
doaj   +1 more source

On integral inequalities related to the weighted and the extended Chebyshev functionals involving different fractional operators

open access: yesJournal of Inequalities and Applications, 2020
The role of fractional integral operators can be found as one of the best ways to generalize classical inequalities. In this paper, we use different fractional integral operators to produce some inequalities for the weighted and the extended Chebyshev ...
Barış Çelik   +3 more
doaj   +1 more source

Stability of port-Hamiltonian systems with mixed time delays subject to input saturation

open access: yesNonlinear Analysis, 2023
In this paper, we investigate the stability of port-Hamiltonian systems with mixed time-varying delays as well as input saturation. Three types of time delays, including state delay, input delay, and output delay, are all assumed to be bounded.
Yufei Chen, Qihuai Liu
doaj   +1 more source

A Modified Analytic Function Space Feynman Integral and Its Applications

open access: yesJournal of Function Spaces, 2014
We analyze the generalized analytic function space Feynman integral and then defined a modified generalized analytic function space Feynman integral to explain the physical circumstances.
Seung Jun Chang   +2 more
doaj   +1 more source

On Some Constrained Optimization Problems

open access: yesMathematics, 2022
By using appropriate methods of variational analysis, the necessary conditions of optimality are established for new classes of constrained optimization problems involving multiple and curvilinear integral functionals.
Savin Treanţă   +3 more
doaj   +1 more source

Closure and commutability results for Gamma-limits and the geometric linearization and homogenization of multi-well energy functionals

open access: yes, 2013
Under a suitable notion of equivalence of integral densities we prove a $\Gamma$-closure theorem for integral functionals: The limit of a sequence of $\Gamma$-convergent families of such functionals is again a $\Gamma$-convergent family.
Jesenko, Martin, Schmidt, Bernd
core   +1 more source

Functional It\^{o} calculus and stochastic integral representation of martingales [PDF]

open access: yes, 2013
We develop a nonanticipative calculus for functionals of a continuous semimartingale, using an extension of the Ito formula to path-dependent functionals which possess certain directional derivatives.
Cont, Rama, Fournié, David-Antoine
core   +6 more sources

Lower semicontinuous functionals for Almgren's multiple valued functions [PDF]

open access: yes, 2011
We consider general integral functionals on the Sobolev spaces of multiple valued functions, introduced by Almgren. We characterize the semicontinuous ones and recover earlier results of Mattila as a particular case. Moreover, we answer positively to one
De Lellis, Camillo   +2 more
core   +3 more sources

Representations for Integral Functionals of Kernel Density Estimators

open access: yesAustrian Journal of Statistics, 2016
We establish a representation as a sum of independent random variables, plus a remainder term, for estimators of integral functionals of the density function, which have a certain simple structure.
David M. Mason
doaj   +1 more source

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