Results 11 to 20 of about 692,743 (288)

INCOMPLETE EXPONENTIAL SUMS OVER EXPONENTIAL FUNCTIONS [PDF]

open access: yesThe Quarterly Journal of Mathematics, 2014
We extend some methods of bounding exponential sums of the type $\displaystyle\sum_{n\le N}e^{2 iag^n/p}$ to deal with the case when $g$ is not necessarily a primitive root. We also show some recent results of Shkredov concerning additive properties of multiplicative subgroups imply new bounds for the sums under consideration.
openaire   +2 more sources

LMI-Based Results on Robust Exponential Passivity of Uncertain Neutral-Type Neural Networks with Mixed Interval Time-Varying Delays via the Reciprocally Convex Combination Technique

open access: yesComputation, 2021
The issue of the robust exponential passivity analysis for uncertain neutral-type neural networks with mixed interval time-varying delays is discussed in this work. For our purpose, the lower bounds of the delays are allowed to be either positive or zero
Nayika Samorn   +3 more
doaj   +1 more source

Stability of Exponential Functional Equations with Involutions

open access: yesJournal of Function Spaces, 2014
Let S be a commutative semigroup if not otherwise specified and f:S→ℝ. In this paper we consider the stability of exponential functional equations |f(x+σ(y))-g(x)f(y)|≤ϕ(x) or  ϕ(y), |f(x+σ(y))-f(x)g(y)|≤ϕ(x) or ϕ(y) for all x,y∈S and where σ:S→S is an ...
Jaeyoung Chung, Soon-Yeong Chung
doaj   +1 more source

Impulsive Stability of Stochastic Functional Differential Systems Driven by G-Brownian Motion

open access: yesMathematics, 2020
This paper is concerned with the p-th moment exponential stability and quasi sure exponential stability of impulsive stochastic functional differential systems driven by G-Brownian motion (IGSFDSs).
Lijun Pan, Jinde Cao, Yong Ren
doaj   +1 more source

Exponential Synchronization of Inertial Complex-Valued Fuzzy Cellular Neural Networks with Time-Varying Delays via Periodically Intermittent Control

open access: yesInternational Journal of Computational Intelligence Systems, 2022
This paper mainly studies the exponential synchronization issue for the inertial complex-valued fuzzy cellular neural networks (ICVFCNNs) with time-varying delays via periodically intermittent control. To achieve exponential synchronization, we use a non-
Pan Wang, Xuechen Li, Tianwei Zhang
doaj   +1 more source

Exponential Stability of Impulsive Stochastic Functional Differential Systems

open access: yesAbstract and Applied Analysis, 2012
This paper is concerned with stabilization of impulsive stochastic delay differential systems. Based on the Razumikhin techniques and Lyapunov functions, several criteria on pth moment and almost sure exponential stability are established.
Zheng Wu, Hao Huang, Lianglong Wang
doaj   +1 more source

Global Exponential Stability of Fractional Order Complex-Valued Neural Networks with Leakage Delay and Mixed Time Varying Delays

open access: yesFractal and Fractional, 2022
This paper investigates the global exponential stability of fractional order complex-valued neural networks with leakage delay and mixed time varying delays.
M. Hymavathi   +5 more
doaj   +1 more source

Ulam’s Type Stability of Involutional-Exponential Functional Equations

open access: yesAbstract and Applied Analysis, 2014
Let S be a commutative semigroup, f,g:S→C and σ:S→S an involution. In this paper we consider the stability of involution-exponential functional equations fx+σy-gxfy≤ϕxresp.,  ϕy, |f(x+σy)-f(x)g(y)|≤ϕ(x) [resp.,  ϕ(y)] for all x,y∈S, where ϕ:S→R ...
Jaeyoung Chung
doaj   +1 more source

Razumikhin-type theorem on time-changed stochastic functional differential equations with Markovian switching

open access: yesOpen Mathematics, 2019
This work is mainly concerned with the exponential stability of time-changed stochastic functional differential equations with Markovian switching. By expanding the time-changed Itô formula and the Razumikhin theorem, we obtain the exponential stability ...
Zhang Xiaozhi, Yuan Chenggui
doaj   +1 more source

A Wiener-Hopf Type Factorization for the Exponential Functional of Levy Processes [PDF]

open access: yes, 2012
For a L\'evy process $\xi=(\xi_t)_{t\geq0}$ drifting to $-\infty$, we define the so-called exponential functional as follows \[{\rm{I}}_{\xi}=\int_0^{\infty}e^{\xi_t} dt.\] Under mild conditions on $\xi$, we show that the following factorization of ...
Milan, Juan Carlos Pardo   +2 more
core   +2 more sources

Home - About - Disclaimer - Privacy