Characterisation of Singular Domains in Threshold-Dependent Biological Networks
Keywords:
Discontinuous System, Singular Domain, Threshold-Dependent Network, Biological System, Piecewise Linear ModelsAbstract
Threshold-dependent networks behave like piecewise smooth system which belongs to a class of systems with discontinuous right hand side. It can be studied with piecewise linear differential equations. At threshold values and their intersections, known as switching boundaries and surfaces, the state of such networks is not defined because of singularity at such points. These states are termed singular states or domains of the network. This study is to characterise, in terms of number, singular domains of any order in a network and the total number of such domains. It shall also propose new definitions for walls which are switching domains of order one. The new definition, which derives from Fillipov’s First Order Theory on characterisation of (sliding) wall, shall be shown to prove better than existing ones as it can reveal intrinsic behaviours in such networks.
Published
How to Cite
Issue
Section
Copyright (c) 2022 Benitho Ngwu, Godwin C. E. Mbah, Chika O. Mmaduakor, Sunday Isienyi, Oghenekevwe R. Ajewole, Felix D. Ajibade

This work is licensed under a Creative Commons Attribution 4.0 International License.
How to Cite
Similar Articles
- Samson Olaniyi, Furaha M. Chuma, Sulaimon F. Abimbade, Asymptotic stability analysis of a fractional epidemic model for Ebola virus disease in Caputo sense , Journal of the Nigerian Society of Physical Sciences: Volume 7, Issue 1, February 2025
- Sathish Kumar Kannaiyan, Rengaraj R, Venkata krishnan G R, Gayathri P K, Lavanya G, Hemapriya D, Antimicrobial activity of green synthesized tri-metallic oxide Ni/Cr/Cu nanoparticles , Journal of the Nigerian Society of Physical Sciences: Volume 3, Issue 3, August 2021
- Kenneth Christopher Ugwoke, Nnanna Nwojo Agwu, Saleh Abdullahi, Artificial potential field path length reduction using Kenneth-Nnanna-Saleh algorithm , Journal of the Nigerian Society of Physical Sciences: Volume 7, Issue 3, August 2025
- K. N. Babu, S. Meenakshi, Even vertex odd edge root square mean labeling of some cycle-related graphs , Journal of the Nigerian Society of Physical Sciences: Volume 8, Issue 3, August 2026
- Omowumi F. Lawal, Tunde T. Yusuf, Afeez Abidemi, On mathematical modelling of optimal control of typhoid fever with efficiency analysis , Journal of the Nigerian Society of Physical Sciences: Volume 6, Issue 4, November 2024
- T. M. J. Abdulkadhim, S. A. A. Alsaati, M. H. Shinen, Theoretical Investigation of Diameter Effects and Edge Configuration on the Optical Properties of Graphdiyne Nanotubes in the Presence of Electric Field , Journal of the Nigerian Society of Physical Sciences: Volume 5, Issue 2, May 2023
- Samy A. Khalil, Performance Evaluation and Statistical Analysis of Solar Energy Modeling: A Review and Case Study , Journal of the Nigerian Society of Physical Sciences: Volume 4, Issue 4, November 2022
- G. R. Venkatakrishnan, R. Rengaraj, K. K. Sathish, R. K. Dinesh, T. Nishanth, Implementation of Modified Differential Evolution Algorithm for Hybrid Renewable Energy System , Journal of the Nigerian Society of Physical Sciences: Volume 3, Issue 3, August 2021
- O. E. Ojo, M. K. Kareem, O. Samuel, C. O. Ugwunna, An Internet-of-Things based Real-time Monitoring System for Smart Classroom , Journal of the Nigerian Society of Physical Sciences: Volume 4, Issue 2, May 2022
- Akindeji Opeyemi Fajana, Adam Muhammed Olawale, Hammed Ajibola Oyesomi, Quantitative reservoir evaluation and hydrocarbon volumetrics :an integrated petrophysical and 3-D static modeling approach in ‘Hamphidex’ field, Niger-Delta, Nigeria , Journal of the Nigerian Society of Physical Sciences: Volume 7, Issue 2, May 2025
You may also start an advanced similarity search for this article.

