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The Gierer-Meinhardt system in the entire space with non-local proliferation rates
University College Dublin, Ireland; Institute of Mathematics Simion Stoilow of the Romanian Academy, Romania.
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science (from 2013).ORCID iD: 0000-0002-9743-8636
The University of Tokyo, Japan.
2025 (English)In: Journal of Differential Equations, ISSN 0022-0396, E-ISSN 1090-2732, Vol. 444, article id 113559Article in journal (Refereed) Published
Abstract [en]

In this work, we present a novel stationary Gierer-Meinhardt system incorporating non-local proliferation rates, defined as follows: [Formula presented] This system emerges in various contexts, such as biological morphogenesis, where two interacting chemicals, identified as an activator and an inhibitor, are described, and in ecological systems modeling the interaction between two species, classified as specialists and generalists. The non-local interspecies interactions are represented by the terms J⁎up,J⁎um where the ⁎-symbol denotes the convolution operation in RN with a kernel J∈C1(RN∖0). In the system, we assume that 0<ρ∈C0,γ(RN) with γ∈(0,1), while the parameters satisfy λ,μ,q,m,s>0 and p>1. Under various integrability conditions on the kernel J, we establish the existence and non-existence of classical positive solutions in the function space Cloc2,δ(RN). These results further highlight the influence of the non-local terms, particularly the proliferation rates, in the proposed model. 

Place, publisher, year, edition, pages
Academic Press Inc. , 2025. Vol. 444, article id 113559
Keywords [en]
Gierer-Meinhardt system, Steady state solutions, Non-local interactions, Existence and non-existence of classical solutions
National Category
Mathematical Analysis
Research subject
Mathematics
Identifiers
URN: urn:nbn:se:kau:diva-106036DOI: 10.1016/j.jde.2025.113559ISI: 001515289900001Scopus ID: 2-s2.0-105008329252OAI: oai:DiVA.org:kau-106036DiVA, id: diva2:1979069
Available from: 2025-06-30 Created: 2025-06-30 Last updated: 2025-06-30Bibliographically approved

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Kavallaris, Nikos I.

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1617181920212219 of 36
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