Results 71 to 80 of about 113,253 (227)

Effects of landscape fragmentation on floodplain fishes as revealed by species–habitat networks

Conservation Biology, Volume 40, Issue 1, February 2026.
Abstract How species interact with habitat patches is influenced primarily by habitat configuration (e.g., connectivity) and species’ functional traits. As levels of fragmentation increase, identifying the intricate connections between these components is crucial for biodiversity conservation.
Chen Zhang, Jorge García‐Girón, Ziyu Yang, Ziyu Liu, Shuxin Li, Wenhui You, Yihao Ge, Xin Gao, Yunzhi Yan   +8 more
wiley   +1 more source

On a nonlocal problem for impulsive differential equations with mixed maxima

Vestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2022
A nonlocal boundary value problem for a first order system of ordinary integro-differential equations with impulsive effects and mixed maxima is investigated. The boundary value problem is given by the integral condition.
Yuldashev, T.K.
doaj   +1 more source

Statistics of non-linear stochastic dynamical systems under L\'evy noises by a convolution quadrature approach

, 2011
This paper describes a novel numerical approach to find the statistics of the non-stationary response of scalar non-linear systems excited by L\'evy white noises.
Cottone G Di Paola M Marino F, Dybiec B, Gikhman I I, Giulio Cottone, Grigoriu M, Lin Y K, Masud A, Metzler R, Protter Philip E, Risken H, Roberts J B, Samko S G, Sobczyk K, Wedig W V, Young D M   +14 more
core   +1 more source

On the Noisy Road to Open Quantum Dynamics: The Place of Stochastic Hamiltonians

Annalen der Physik, Volume 538, Issue 1, January 2026.
Stochastic Hamiltonian formulations of open quantum dynamics are revisited, highlighting their roots in stochastic calculus. The connections among stochastic Hamiltonians, stochastic Schrödinger equations, and master‐equation approaches are made explicit.
Pietro De Checchi, Federico Gallina, Barbara Fresch, Giulio G. Giusteri   +3 more
wiley   +1 more source

On an explicit finite difference method for fractional diffusion equations

, 2003
A numerical method to solve the fractional diffusion equation, which could also be easily extended to many other fractional dynamics equations, is considered.
Gorenflo Rudolf, Gorenflo Rudolf, L. Acedo, Morton K., Podlubny Igor, S. B. Yuste   +5 more
core   +1 more source

Estimating scale‐dependent covariate responses using two‐dimensional diffusion derived from the stochastic partial differential equation method

Methods in Ecology and Evolution, Volume 17, Issue 1, Page 207-218, January 2026.
Abstract Species distribution models (SDMs) are widely used to standardize spatially unbalanced data, project climate impacts and identify habitat for conservation. SDMs typically estimate the impact of local environmental conditions by estimating a dome‐shaped or non‐parametric ‘environmental response function’.
Max Lindmark, Sean C. Anderson, James T. Thorson   +2 more
wiley   +1 more source

Analytic solutions of fractional differential equations by operational methods

, 2012
We describe a general operational method that can be used in the analysis of fractional initial and boundary value problems with additional analytic conditions. As an example, we derive analytic solutions of some fractional generalisation of differential
Garra, Roberto, Polito, Federico
core   +1 more source

CMiNet: An R package and user‐friendly Shiny App for constructing consensus microbiome networks

Methods in Ecology and Evolution, Volume 17, Issue 1, Page 52-66, January 2026.
Abstract Microbial networks offer critical insights into community structure, ecological interactions and host–microbe dynamics. However, constructing reliable microbiome networks remains challenging due to variability among existing inference methods, limited overlap between inferred networks and the absence of a gold standard (a universally accepted ...
Rosa Aghdam, Claudia Solís‐Lemus
wiley   +1 more source

Stability for linear second order vector integro-differential equations

Results in Applied Mathematics
Explicit sufficient conditions for uniform exponential stability of two-dimensional linear vector integro-differential equations have been established.
Leonid Berezansky, Alexander Domoshnitsky   +1 more
doaj   +1 more source

Spectral function of the Anderson impurity model at finite temperatures

, 2010
Using the functional renormalization group (FRG) and the numerical renormalization group (NRG), we calculate the spectral function of the Anderson impurity model at zero and finite temperatures.
A. C. Hewson, Aldo Isidori, David Roosen, J. Berges, Lorenz Bartosch, P. Kopietz, Peter Kopietz, Walter Hofstetter   +7 more
core   +1 more source