Almost Periodic Solutions of Recurrently Structured Impulsive Neural Networks

2022-01-01
©2022 L&H Scientific Publishing, LLC. All rights reserved.The model under discussion is an elaborated recurrent impulsive neural network. This is the first time in literature that the impacts are structured completely as the original neural network, such that physical sense of impacts has been explained. Moreover, the impact part comprises all types of impacts in neural networks, which were traditionally studied in conservative models. In the research, neuron membranes with negative as well as positive capacitance, are considered newly as parts of the neural networks. This was not studied before. The system is analyzed in matrix form to facilitate more transparent presentation. The existence and uniqueness of asymptotically stable discontinuous almost periodic solutions are investigated. An example with simulations is provided to illustrate the results.
Discontinuity, Nonlinearity, and Complexity

Suggestions

Almost periodic solutions of recurrently structured impulsive neural networks
Top, Gülbahar; Akhmet, Marat; Department of Mathematics (2022-3-28)
This thesis aims to conduct detailed and precise neural networks research with impulses at nonprescribed moments in terms of periodic and almost periodic solutions. Most of the actions in nature modeled by neural networks involve repetitions. Hence periodic and almost periodic motions become crucial. So in this thesis, the existence, uniqueness, and stability of the periodic and almost periodic motion are served for the neural networks with prescribed and nonprescribed impacts. This impulsive system is a n...
Almost Periodic Solutions of Recurrent Neural Networks with State-Dependent and Structured Impulses
Akhmet, Marat; Erim, Gülbahar (2023-01-01)
The subject of the present paper is recurrent neural networks with variable impulsive moments. The impact activation functions are specified such that the structure for the jump equations are in full accordance with that one for the differential equation. The system studied in this paper covers the works done before, not only because the impacts have recurrent form, but also impulses are not state-dependent. The conditions for existence and uniqueness of asymptotically stable discontinuous almost periodic s...
Hybrid wavelet-neural network models for time series data
Kılıç, Deniz Kenan; Uğur, Ömür; Department of Financial Mathematics (2021-3-3)
The thesis aims to combine wavelet theory with nonlinear models, particularly neural networks, to find an appropriate time series model structure. Data like financial time series are nonstationary, noisy, and chaotic. Therefore using wavelet analysis helps better modeling in the sense of both frequency and time. S&P500 (∧GSPC) and NASDAQ (∧ IXIC) data are divided into several components by using multiresolution analysis (MRA). Subsequently, each part is modeled by using a suitable neural network structure. ...
Spatio-temporal distribution of picophytoplankton (Pico-eukaryotes, Synechococcus and Prochlorococcus) abundance in the northeastern mediterranean
Kilic, Ece; Uysal, Zahit; Tugrul, Suleyman; Yucel, Nebil (2020-07-01)
© 2020 Parlar Scientific Publications. All rights reserved.Primary productivity mostly relies on marine cyanobacteria in the oligotrophic north-eastern Mediterranean (NEM). However, wide shelf basin is fed by nutrient-rich rivers (namely Goksu, Lamas, Seyhan, Ceyhan, Asi) leading to apparent increase in algal production at coastal regions. In the present study, variation of picophytoplankton (pico-eukaryotes, Synechococcus and Prochlorococcus) abundance of at different trophic levels of NEM were investigate...
Almost periodic solutions of second order neutral differential equations with functional response on piecewise constant argument
Akhmet, Marat (2013-01-01)
© 2013 L & H Scientific Publishing, LLC.We consider second order functional differential equations with generalized piecewise constant argument. Conditions for existence, uniqueness and stability of Bohr almost periodic solutions are defined. Appropriate examples which illustrate the results are provided.
Citation Formats
M. Akhmet and G. Erim, “Almost Periodic Solutions of Recurrently Structured Impulsive Neural Networks,” Discontinuity, Nonlinearity, and Complexity, vol. 11, no. 3, pp. 373–385, 2022, Accessed: 00, 2022. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85130452126&origin=inward.