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
- S. E. Shaibu, E. J. Inam, E. A. Moses, U. A. Ofon, O. K. Fatunla, C. O. Obadimu, N. D. Ibuotenang, N. O. Offiong, V. F. Ekpo, T. J. Adeoye, E. L. Udokang, D. P. Fapojuwo, Prospects of nanosorption and photocatalysis in remediation of oil spills , Journal of the Nigerian Society of Physical Sciences: Volume 5, Issue 1, February 2023
- Mahouton Justine Carine ADJASSA, Gabin KOTO N'GOBI, Hagninou Elagnon Venance DONNOU, Clément Adéyèmi KOUCHADE, Basile Bruno KOUNOUHEWA, Generation of Electricity From a Hydraulic Turbine in the Djonou River (Benin) , Journal of the Nigerian Society of Physical Sciences: Volume 5, Issue 2, May 2023
- Merabti Nesrine Lamya, Iqbal M. Batiha, Imad Rezzoug, Adel Ouannas, Taki-Eddine Ouassaeif, On sentinel method of one-phase Stefan problem , Journal of the Nigerian Society of Physical Sciences: Volume 5, Issue 4, November 2023
- Josephine E. Ochigbo, Joel N. Ndam, Wipuni U. Sirisena, Optimal control with the effects of ivermectin and live stock availability on malaria transmission , Journal of the Nigerian Society of Physical Sciences: Volume 6, Issue 3, August 2024
- Segun Oladipo, Adesola A. Adeleke, Abosede A. Badeji, Katherine I. Babalola, Ayomide H. Labulo, Ibrahim Hassan, Sadiq T. Yussuf, Samuel O. Olalekan, Computational investigation and biological activity of selected Schiff bases , Journal of the Nigerian Society of Physical Sciences: Volume 6, Issue 3, August 2024
- Raja Aqib Shamim, Majid Khan Majahar Ali, Optimizing discrete dutch auctions with time considerations: a strategic approach for lognormal valuation distributions , Journal of the Nigerian Society of Physical Sciences: Volume 7, Issue 1, February 2025
- Felix Yakubu Eguda, Andrawus James, Sunday Babuba, The Solution of a Mathematical Model for Dengue Fever Transmission Using Differential Transformation Method , Journal of the Nigerian Society of Physical Sciences: Volume 1, Issue 3, August 2019
- B. Laxmi, K. Chand, P. Thakur, Hydrodynamic Casson hybrid nanofluid flow across a stretching sheet in the regime of velocity slip and temperature jump,including viscous dissipation, melting, Soret and Dufour effects , Journal of the Nigerian Society of Physical Sciences: Volume 7, Issue 4, November 2025
- Anwar Bataihah, On the effect of fixed-bandwidth kernel density estimation on the exponential distribution , Journal of the Nigerian Society of Physical Sciences: Volume 8, Issue 3, August 2026
- Segun L. Jegede, Adewale F. Lukman, Kayode Ayinde, Kehinde A. Odeniyi, Jackknife Kibria-Lukman M-Estimator: Simulation and Application , Journal of the Nigerian Society of Physical Sciences: Volume 4, Issue 2, May 2022
You may also start an advanced similarity search for this article.

