Results 31 to 40 of about 754 (137)

On the Wavelet Collocation Method for Solving Fractional Fredholm Integro-Differential Equations

Mathematics, 2022
An efficient algorithm is proposed to find an approximate solution via the wavelet collocation method for the fractional Fredholm integro-differential equations (FFIDEs).
Haifa Bin Jebreen, Ioannis Dassios
doaj   +1 more source

Coexistence of poorer competitors for all available resources requires greater niche overlap

Ecosphere, Volume 17, Issue 7, July 2026.
Abstract The need for niche differentiation among resource competitors to coexist is a universally accepted principle in ecology. However, this principle is derived from models with one or two resources or no resource dynamics at all. Graphical analysis of a consumer‐resource model including three resources shows that a consumer that is not the best ...
Mark A. McPeek
wiley   +1 more source

Existence and Uniqueness of Generalised Fractional Cauchy-Type Problem

Universal Journal of Mathematics and Applications, 2020
In this paper, we study the existence and uniqueness of Generalized Fractional Cauchy-type problem involving Hilfer-Hadamard-type fractional derivative for a nonlinear fractional differential equation.
Ahmad Y. A. Salamoonı, D.d. Pawar
doaj   +1 more source

Uncertainty Quantification of Analytical Solutions for the Nonlinear Space and Time Fractional Order ϕ4$$ {\phi}^4 $$ Equation Under Fuzziness

Engineering Reports, Volume 8, Issue 7, July 2026.
Analytical fuzzy soliton solutions of a modified space–time fractional ϕ4$$ {\phi}^4 $$ model are derived using EHFM, capturing memory effects and uncertainty. Results reveal diverse wave structures and show how fractional order and fuzziness significantly influence soliton amplitude, localization, and propagation, with heightened sensitivity near the ...
Mohsin Khalid, Neha Andaleeb Khalid, Baboucarr Ceesay, Zafar Iqbal   +3 more
wiley   +1 more source

BioPest: An Integrated Deep Learning Driven Predator–Prey Framework for Early Pest Detection and Biological Control

Engineering Reports, Volume 8, Issue 7, July 2026.
This study integrates EfficientNetV2‐based classification and counting of 12 pest species with a hybrid Neural ODE predator–prey model for biological pest control. Deep learning (DL) population estimates are used to initialize the ODE system, which is empirically validated against real insect population time‐series data.
M. Monzu Uddin, Mohammad Sakib, S. Akter, M. Humayun Kabir   +3 more
wiley   +1 more source

Discovering data‐driven microbial growth models with symbolic regression

Methods 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, Dovydas Kičiatovas, Inga‐Katariina Aapalampi, Teemu Kuosmanen, Teppo Hiltunen, Ville Mustonen   +5 more
wiley   +1 more source

Numerical Solutions of a Class of Nonlinear Volterra Integral Equations

Abstract and Applied Analysis, 2014
We consider numerical solutions of a class of nonlinear (nonstandard) Volterra integral equations. We first prove the existence and uniqueness of the solution of the Volterra integral equation in the context of the space of continuous functions over a ...
H. S. Malindzisa, M. Khumalo
doaj   +1 more source

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

African 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, Izak P. J. Smit, Judith Botha, Robert M. Pringle, Ramiro D. Crego   +4 more
wiley   +1 more source

Audit‐Ready Machine Learning for Short‐Horizon Equity Prediction: A Dual‐Target Benchmark With Fold‐Isolated Preprocessing

Engineering Reports, Volume 8, Issue 6, June 2026.
This study introduces a rigorous, walk‐forward protocol to evaluate next‐day return and volatility‐proxy forecasting across matched model families. By enforcing fold‐isolated preprocessing and causal feature construction on US mega‐caps, the study eLectively mitigates performance inflation.
Abdul Kadar Muhammad Masum, Md. Abul Kalam Azad, Mirza Nadim Saad, Al‐Amain, Mohammad Azam Khan, A. B. M. Yasir Arafat   +5 more
wiley   +1 more source

Existence and Stability Analysis of Nonlinear Volterra-Fredholm Integral Equations

Proceedings of the International Conference on Applied Innovations in IT
The aim of this paper is to prove the existence and uniqueness of a solution for a Volterra-Fredholm nonlinear integral equation in two variables under certain conditions, for example, Using the Lipschitz condition with Banach's space contraction ...
Shahab A. Hassan, Noor H. Abdullah, Waleed A. Saeed   +2 more
doaj   +1 more source