Results 61 to 70 of about 1,611 (185)

Discovering data‐driven microbial growth models with symbolic regression

open access: yesMethods in Ecology and Evolution, Volume 17, Issue 7, Page 2135-2148, July 2026.
Abstract Connecting mathematical models with empirically measured microbial growth has remained challenging, as numerous competing models based on different theoretical approaches can fit observations. Therefore, we develop a method to automatically propose growth models from microbial data alone. We validate this approach using an available dataset of
T. Anthony Sun   +5 more
wiley   +1 more source

Inferring Interspecific Interactions Among African Savannah Herbivores Using Detectability‐Corrected Co‐Abundance Patterns

open access: yesAfrican Journal of Ecology, Volume 64, Issue 5, July 2026.
ABSTRACT Competition and facilitation are fundamental concepts in ecology, but evidence for the strength and direction of interspecific interactions within trophic levels is difficult to obtain, particularly in large assemblages of free‐ranging animals.
Harry B. M. Wells   +4 more
wiley   +1 more source

Multispecies Niche Overlap: Moving Beyond Pairwise Metrics to Understand Community‐Wide Similarities in Resource Use

open access: yesEcology and Evolution, Volume 16, Issue 6, June 2026.
Measures of niche overlap are important tools in various ecological and evolutionary studies. Here we create and apply a multispecies overlap metric to both simulated and empirical communities, illustrating how this methodology may capture interactions and structure of niche space in ways that traditional, pairwise metrics overlook.
Cody M. Kent   +2 more
wiley   +1 more source

Approximate Solution of Intuitionistic Fuzzy Volterra Integral Equation of Separable-Type Kernel Using Elzaki Adomian Decomposition Method

open access: yesInternational Journal of Mathematics and Mathematical Sciences
An intuitionistic fuzzy number, which incorporates both membership and nonmembership functions at a same time, allows for a more accurate representation of uncertainty.
Zain Khan   +2 more
doaj   +1 more source

Asymptotic analysis of a volterra integral equation

open access: yesApplied Mathematics Letters, 1988
A Volterra integral equation of the form \(u(t)=\epsilon \int^{t}_{0}[\pi (t-s)]^{-1/2}F(u(s),s)ds\) is considered where \(F(0,t)\sim c_ 0t^{-r_ 0}\) and \(F_ u(0,t)\sim -c_ 1t^{-r_ 1}\) as \(t\to +\infty\) and \(r_ ...
openaire   +2 more sources

Singular Integral Equations of the Volterra Type [PDF]

open access: yesTransactions of the American Mathematical Society, 1914
Equations of the form (1) sometimes arise,1: however, for which the conditions of Evans's theorem are not satisfied. Various cases in which this is true are considered in the present paper. In each instance an attempt is made not merely to prove the existence of a continuous solution, but also to determine its behavior for large values of x.
openaire   +1 more source

Solving Volterra-Fredholm integral equations by non-polynomial spline functions

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы
 It depends on our information, non-polynomial spline functions have not been applied for solving Volterra- Fredholm integral equations of the second kind yet.
S.H. Salim, K.H.F. Jwamer, R.K. Saeed
doaj   +1 more source

A Finite Difference Method for Smooth Solution of a System of Linear Volterra Integral Equations [PDF]

open access: yesمدل‌سازی پیشرفته ریاضی
In this paper, we propose a finite difference numerical method for the smooth solution of a system of linear Volterra integral equations. This method is a generalization of the finite difference method proposed in [11] and [12] for scalar linear Volterra
Mehdi Jalalvand   +2 more
doaj   +1 more source

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