Results 61 to 70 of about 11,797 (246)

Facilitative interspecific interactions in marine vertebrates across scales: from individuals to ecosystems

Biological Reviews, Volume 101, Issue 1, Page 519-538, February 2026.
ABSTRACT Facilitative interspecific interactions (FIIs) confer benefits to at least one participant without detriment to others. Although often less emphasised than antagonistic interactions in ecological studies, this review highlights the significant ecological role of FIIs across biological scales – from individual behaviours to population ...
Eduardo Döbber Vontobel, Sophie Smout, Jorge L. Rodrigues Filho, Ronaldo Angelini, Mauricio Cantor, Fábio G. Daura‐Jorge   +5 more
wiley   +1 more source

An Inverse Source Technique as a Preliminary Tool to Localize Persons in Indoor Spaces

Mathematical Methods in the Applied Sciences, Volume 49, Issue 1, Page 304-320, 15 January 2026.
ABSTRACT This paper considers an inverse heat source localization problem with applications to indoor person localization from temperature measurements. In particular, this inverse problem consists in the reconstruction of the intensity and position of heat sources from observed temperature data.
Simonetta Boria, Nadaniela Egidi, Lorella Fatone, Josephin Giacomini, Pierluigi Maponi, Riccardo Piombin   +5 more
wiley   +1 more source

A third-order numerical method for solving fractional ordinary differential equations

AIMS Mathematics
In this paper, we developed a novel numerical method for solving general nonlinear fractional ordinary differential equations (FODEs). First, we transformed the nonlinear FODEs into the equivalent Volterra integral equations.
Xiaopeng Yi , Chongyang Liu, Huey Tyng Cheong, Kok Lay Teo, Song Wang   +4 more
doaj   +1 more source

Forced Periodic Reactor Operation Applied to Methanol Synthesis

ChemCatChem, Volume 18, Issue 2, 28 January 2026.
Forced periodic operation of methanol synthesis is studied theoretically and experimentally considering an industrial Cu/ZnO/Al2O3 catalyst. The nonlinear frequency response method and rigorous mathematical optimization predict attractive forcing parameters.
Lothar Kaps, Wieland Kortuz, Johannes Leipold, Carsten Seidel, Matthias Felischak, Tanya Wolff, Menka Petkovska, Dalibor Marinković, Daliborka Nikolić, Achim Kienle, Andreas Seidel‐Morgenstern   +10 more
wiley   +1 more source

Lavrentiev Regularization of Integral Equations of the First Kind in the Space of Continuous Functions

Известия Иркутского государственного университета: Серия "Математика", 2016
The regularization method of linear integral Volterra equations of the first kind is considered. The method is based on the perturbation theory. In order to derive the estimates of approximate solutions and regularizing operator norms we use the Banach ...
I. Muftahov, D. Sidorov, N. Sidorov
doaj  

Boundedness of solutions of matrix nonlinear volterra difference equations

Discrete Dynamics in Nature and Society, 2002
Nonlinear discrete-time Volterra equations in a Euclidean space are considered. Conditions for the boundedness of solutions are established by virtue of recent estimates for the norm of the resolvent of Volterra operators.
Michael I. Gil', Rigoberto Medina
doaj   +1 more source

Projected iterations of fixed point type to solve nonlinear partial Volterra integro--differential equations [PDF]

, 2020
M. Berenguer, D. Gámez
openalex   +1 more source

Phytochemical diversity and seasonality are associated with a critical transition in plant–herbivore network structure

Ecology, Volume 107, Issue 1, January 2026.
Abstract Understanding critical transitions in ecological systems is fundamental for addressing various natural phenomena, from population outbreaks to sudden ecosystem collapses. Ecological interactions are key drivers of these transitions, and theory suggests that the networks formed by these interactions can undergo their own critical transition. By
Leandro G. Cosmo, Kate P. Maia, Paulo R. Guimarães Jr., Martin Pareja   +3 more
wiley   +1 more source

Abstract Hyperbolic Volterra Integrodifferential Equations

Journal of Integral Equations and Applications, 1998
The authors study the global solvability in a Banach space \(X\) of the integrodifferential equation \[ u'(t) = A(t)u(t) + \int_0^t g(t,s,u(s)) ds + f(t),\quad t \geq 0, \] with ``boundary'' condition \(S(t)u(t)\in D\) and initial condition \(u(0)=\phi\).
Lin, Yuhua, Tanaka, Naoki
openaire   +3 more sources

Is an ecosystem perspective sufficient to understand meta‐ecosystem processes? A critical reflection

Oikos, Volume 2026, Issue 1, January 2026.
Meta‐ecosystems are the largest and probably most complex structures investigated in ecology. Because of their complexity they are often separated into their respective sub‐systems and then studied in isolation. This is often done without analysing whether an understanding of the individual ecosystems can lead to a proper understanding of the meta ...
Jurg W. Spaak, Mirco Bundschuh, Martin H. Entling, Ralf B. Schäfer, Ralf Schulz   +4 more
wiley   +1 more source