Results 91 to 100 of about 2,994 (165)

Reachable Set Estimation of Discrete Singular Systems with Time-Varying Delays and Bounded Peak Inputs

open access: yesMathematics
This paper studies the estimation of reachable sets for discrete-time singular systems with time-varying delays and bounded peak inputs. A novel linear matrix inequality condition for the reachable set estimation of the time-varying time-delay discrete ...
Hongli Yang   +2 more
doaj   +1 more source

A $p$-adic analog of Wirtinger's inequality.

open access: yesMichigan Mathematical Journal, 1996
In classical Fourier analysis, for a nonvanishing complex-valued \(C^1\)-function \(f\) on the unit circle one proves that \(f\) has no zeros on some arc whose length can be expressed in terms of Fourier coefficients of \(f\) and \(f'\). In the present paper, the following \(p\)-adic version is proved.
openaire   +2 more sources

Wirtinger-Beesack integral inequalities

open access: yesElectronic Journal of Differential Equations, 2005
Let \(I = (\alpha,\beta)\), \(-\infty\leq \alpha 0\), \(\varphi > 0\) on \(I\) and \(r\varphi''' \in AC^2(I)\). Put \(s=-(r\varphi''')'''\varphi^{-1}\). The aim of the paper is to establish the integral inequality \[ \int_I sh^2dt \leq \int_I r(h''')^2 dt \quad\text{for all} \;h \in H, \] where \(H \subset AC^2(I)\) is a convenient class of functions ...
openaire   +2 more sources

A Refinement of the Discrete Wirtinger Inequality

open access: yesJournal of Mathematical Analysis and Applications, 1996
In the present paper, the following refinement of Tang's discrete Wirtinger inequality [\textit{D. Tang}, Bull. Aust. Math. Soc. 43, No. 3, 467-474 (1991; Zbl 0751.26006)] is established: Theorem A. Let \(f(\theta)\) be a positive \(C^2\)-function on \((0,\ell)\) such that \(f'(\theta) f''(\theta) \neq 0\) and \(f'(\theta)^2 - f(\theta)f''(\theta ...
openaire   +1 more source

Finite-time stabilization of a perturbed chaotic finance model. [PDF]

open access: yesJ Adv Res, 2021
Ahmad I   +4 more
europepmc   +1 more source

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