Results 51 to 60 of about 2,313 (171)
Periodic Solutions to a Ring of Identical Cells With Delay via the Equivariant Degree Method
International Journal of Differential Equations, Volume 2026, Issue 1, 2026.We investigate the existence and multiplicity of bifurcating solutions in a Hopfield–Cohen–Grossberg network with n identical components and time delays. Applying the equivariant degree method, we derive sufficient conditions guaranteeing periodic solutions and their multiplicities. Two examples are provided to exemplify the theoretical results.
Shi Yu, Igor Freire
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Algebraic Connectivity Maximizing Regular Graphs: Special Case Analysis and Depth‐First Search
Concurrency and Computation: Practice and Experience, Volume 37, Issue 27-28, 25 December 2025.ABSTRACT The algebraic connectivity is an indicator of how well connected a graph is. It also characterizes the convergence speed of some dynamic processes over networks. In this paper, taking into account that homogeneous networks are modeled as regular graphs, we tackle the following problem: given a pair (n,k)$$ \left(n,k\right) $$ of positive ...
Masashi Kurahashi +3 more
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MicrobiologyOpen, Volume 14, Issue 6, December 2025.Optimized submerged fermentation of Clonostachys rosea under high aeration enhances production of submerged conidia and microsclerotia. Formulated propagules and antifungal metabolites, including sorbicillinoids, effectively control tomato gray mold, offering a promising strategy for biocontrol product development.
Gabriel Moura Mascarin +3 more
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Eigenvectors of block circulant and alternating circulant matrices,” Res [PDF]
, 2005 . The eigenvectors and eigenvalues of symmetric block circulant ma-trices had been found, and that method is extended to general block circulant matrices. That analysis is applied to Stephen J.
Garry J. Tee, Tee, Garry J.
core
Numerical Linear Algebra with Applications, Volume 32, Issue 6, December 2025.ABSTRACT In this work, we propose a novel preconditioned minimal residual method for a class of real, nonsymmetric multilevel block Toeplitz systems, which generalizes an ideal preconditioner established in [J. Pestana. Preconditioners for symmetrized Toeplitz and multilevel Toeplitz matrices. SIAM Journal on Matrix Analysis and Applications, 40(3):870–
Grigorios Tachyridis, Sean Y. Hon
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Low‐Rank Geostatistical Inversion for Spatiotemporal Heterogeneity of Aquitard Hydraulic Parameters
Water Resources Research, Volume 61, Issue 12, December 2025.Abstract Many hydrogeological processes are intricately linked to both the spatial heterogeneity and temporal dynamics of the involved parameters. The variability in hydrogeological parameters across both space and time domains is defined as the spatiotemporal heterogeneity.
Chao Zhuang +8 more
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Circulants, inversion of circulants, and some related matrix algebras
Linear Algebra and its Applications, 1984 AbstractThe spectral theory for circulants over R or C is discussed, followed by a discussion of inversion of circulants. The algebraic theory of one-generator matrix algebras and applications to circulants and some related algebras are presented. The theory of symmetric functions plays an important role.
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Circulating Matrix Metalloproteinase 3 due to Myocardial Ischemia
The Heart Surgery Forum, 2009 Experimental data suggest that matrix metalloproteinases (MMPs) such as MMP-3 have a central role in the remodeling period after a myocardial infarction (MI). The aim of this study was to use an experimental small-animal model to investigate the fluctuation in MMP-3 levels occurring in vivo after an acute MI.We studied 13 New Zealand white rabbits ...
Siminelakis, S. +6 more
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Transactions of the London Mathematical Society, Volume 12, Issue 1, December 2025.Abstract In subwavelength physics, a challenging problem is to characterise the spectral properties of finite systems of subwavelength resonators. In particular, it is important to identify localised modes as well as bandgaps and associated mobility edges.
Habib Ammari +2 more
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International Journal of Climatology, Volume 45, Issue 13, 15 November 2025.Ireland's rainfall monitoring network provides a large spatiotemporal climate dataset, with many stations reporting missing entries during the monitoring period (1981–2010). Filling these gaps is essential for producing climate reports; however, additional consideration is required during modeling to maintain computational feasibility.
Brian O'Sullivan, Gabrielle Kelly
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