Results 91 to 100 of about 26,274 (211)

On an asymptotic property of a Volterra integral equation [PDF]

open access: yesProceedings of the American Mathematical Society, 1971
It is proved that if q ( t − s ) q(t - s) is bounded and f ( t , x ) f(t,x) is “small,” the solutions of the integral equation x ( t ) = a ( t ) + ∫
openaire   +2 more sources

Ventilatory Complexity Persists in Phox2b Mutant Mice Lacking the Retrotrapezoid Nucleus/Parafacial Respiratory Group (RTN/pFRG) and in Humans With Congenital Central Hypoventilation Syndrome

open access: yesJournal of Comparative Neurology, Volume 533, Issue 12, December 2025.
Phox2B mutant mice and patients with congenital central hypoventilation syndrome exhibit ventilatory variability and complexity comparable to those of controls, suggesting that the RTN/pFRG nucleus is not required for brainstem central pattern generators to generate complex breathing.
Christian Straus   +10 more
wiley   +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

Interaction strength and harvest intensity mediate predator–prey dynamics on coral reefs

open access: yesEcosphere, Volume 16, Issue 12, December 2025.
Abstract Understanding predator–prey relationships is fundamental to our knowledge of the stability and resilience of ecological systems. These dynamics are shaped by both ecological factors, like interaction strength, and anthropogenic factors, like harvest intensity, which can have large‐scale implications for community structure.
Sophia A. Rahnke   +3 more
wiley   +1 more source

Measuring competition coefficients in an ant community: Implications for intraspecific adaptation load

open access: yesEcology, Volume 106, Issue 12, December 2025.
Abstract Understanding the stable coexistence of species despite resource competition has been a central topic in ecology. Ant communities are particularly enigmatic as various species coexist despite resource overlap. Community ecology theory predicts stable species coexistence when intraspecific competition is stronger than interspecific competition,
Jumpei Uematsu   +2 more
wiley   +1 more source

An innovative iterative approach to solving Volterra integral equations of second kind

open access: yesActa Polytechnica
Many scientists have shown great interest in exploring the realm of second-kind integral equations, offering many techniques for solving them, including exact, approximate, and numerical methods.
Mohammed Abdulshareef Hussein   +2 more
doaj   +1 more source

Numerical solution of nonlinear stochastic Itô–Volterra integral equations based on Haar wavelets

open access: yesAdvances in Difference Equations, 2019
In this paper, an efficient numerical method is presented for solving nonlinear stochastic Itô–Volterra integral equations based on Haar wavelets.
Jieheng Wu, Guo Jiang, Xiaoyan Sang
doaj   +1 more source

Embedding Stieltjes-Volterra integral equations in Stieltjes integral equations [PDF]

open access: yesTransactions of the American Mathematical Society, 1977
J. A. Reneke has shown that the linear Stieltjes-Volterra integral equations studied by D. B. Hinton can be transformed into Stieltjes integral equations of the type studied by J. S. Mac Nerney. By taking advantage of the nonlinear nature of Mac Nerney’s results, Reneke was able to extend Hinton’s existence theorem to a nonlinear setting. In this paper,
openaire   +1 more source

Intercropping Broccoli‐Basil Reduces Aphid Growth: Spatio‐Temporal Modelling Across Scales and Lab Experiments

open access: yesJournal of Sustainable Agriculture and Environment, Volume 4, Issue 4, December 2025.
ABSTRACT Shifting from conventional to sustainable agriculture demands well‐designed experiments and robust analytical models to evaluate agroecological system performance and resilience. We modelled aphid population dynamics in broccoli monocultures and broccoli‐basil intercrops using spatio‐temporal approaches, informed by laboratory experiments on ...
Rayana M. R. Carvalho   +3 more
wiley   +1 more source

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