Results 51 to 60 of about 1,064,326 (320)
IEEE Open Journal of Signal Processing, 2021 Discrete complex exponentials are almost periodic signals, not always periodic; when periodic, the frequency determines the period, but not viceversa, the period being a chaotic function of the frequency, expressible in terms of Thomae's function.
Alfredo Restrepo +2 more
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Advances in Difference Equations, 2008 We investigate the existence of almost-periodic weak solutions of second-order neutral delay-differential equations with piecewise constant argument of the form (x(t)+x(t−1))′′=qx(2[(t+1)/2])+f(t), where [⋅] denotes the greatest ...
Chuanyi Zhang, Li Wang
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Global Asymptotic Almost Periodic Synchronization of Clifford-Valued CNNs with Discrete Delays
Complex, 2019 In this paper, we are concerned with Clifford-valued cellular neural networks (CNNs) with discrete delays. Since Clifford algebra is a unital associative algebra and its multiplication is noncommutative, to overcome the difficulty of the noncommutativity
Yongkun Li, Jianglian Xiang
semanticscholar +1 more source
An almost existence theorem for non-contractible periodic orbits in cotangent bundles [PDF]
, 2012 Assume M is a closed connected smooth manifold and H:T^*M->R a smooth proper function bounded from below. Suppose the sublevel set {H=d the level set {H=s} carries a periodic orbit z of the Hamiltonian system (T^*M,\omega_0,H) representing \alpha ...
Salomão, Pedro A. S., Weber, Joa
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On nth-order differential operators with Bohr-Neugebauer type property
International Journal of Mathematics and Mathematical Sciences, 1987 Suppose B is a bounded linear operator in a Banach space. If the differential operator dndtn−B has a Bohr-Neugebauer type property for Bochner almost periodic functions, then, for any Stepanov almost periodic continuous function g(t) and any Stepanov ...
Aribindi Satyanarayan Rao
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Action Correlations in Integrable Systems
, 1999 In many problems of quantum chaos the calculation of sums of products of periodic orbit contributions is required. A general method of computation of these sums is proposed for generic integrable models where the summation over periodic orbits is reduced
Bogomolny, E.
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Almost Periodic Time Scales and Almost Periodic Functions on Time Scales [PDF]
Journal of Applied Mathematics, 2015 We propose some new concepts of almost periodic time scales and almost periodic functions on time scales and give some basic properties of these new types of almost periodic time scales and almost periodic functions on time scales. We also give some comments on a recent paper by Wang and Agarwal (2014) concerning a new almost periodic time scale.
Li, Yongkun, Li, Bing
openaire +3 more sources
Pediatric Blood &Cancer, EarlyView.ABSTRACT Blinatumomab has been shown to be highly effective for patients with pediatric B‐ALL and has recently become standard of care therapy. Due to its past use in the clinical trial setting, there is limited information available about real‐world administration.
Katelyn Oranges +12 more
wiley +1 more source
Periodicity of resonant tunneling current induced by the Stark resonances in semiconductor nanowire
, 2013 The modification of the electronic current resulting from Stark resonances has been studied for the semiconductor nanowire with the double-barrier structure.
Adamowski, Janusz +3 more
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Purpose Retinoblastoma (RB) is the most common pediatric ocular cancer, yet population‐based data on survival and risk factors remain limited. This study aimed to describe survival in a large national RB cohort and identify predictors of death and complications.
Samuel Sassine +14 more
wiley +1 more source