Results 101 to 110 of about 320 (204)

An efficient spectral algorithm for non-linear astrophysical Lane–Emden problem using pseudo-Chebyshev wavelets with error analysis

Franklin Open
Mother wavelets play a crucial role in wavelet analysis, leading to the development of several well-known families such as Haar, Morlet, Legendre, and Chebyshev wavelets.
Susheel Kumar, Satish Kumar, Sudhir Kumar Mishra, Shyam Lal   +3 more
doaj   +1 more source

Quasi‐4‐Day Waves During the 2018/2019 SSW and Their Coupling to the Ionosphere Based on Whole Atmosphere Data Assimilation

Space Weather, Volume 24, Issue 3, March 2026.
Abstract A strong westward zonal wavenumber‐2 quasi‐4‐day wave (Q4DW) during the 2018/2019 Northern Hemisphere sudden stratospheric warming (SSW) is both captured by Aura Microwave Limb Sounder (MLS) observations and our new whole neutral atmosphere data assimilation system.
Wenxuan Wang, Xiankang Dou, Sheng‐Yang Gu, Yusong Qin, Yuxuan Liu, Hao Chen, Bao Zhang   +6 more
wiley   +1 more source

NUMERICAL SOLUTION OF LINEAR FREDHOLM AND VOLTERRA INTEGRAL EQUATION OF THE SECOND KIND BY USING LEGENDRE WAVELETS [PDF]

Journal of Sciences, Islamic Republic of Iran, 2002
In this paper, we use the continuous Legendre wavelets on the interval [0,1] constructed by Razzaghi M. and Yousefi S. [6] to solve the linear second kind integral equations. We use quadrature formula for the calculation of the products of any functions,
doaj  

Gearbox Compound Fault Diagnosis in Edge-IoT Based on Legendre Multiwavelet Transform and Convolutional Neural Network. [PDF]

Sensors (Basel), 2023
Zheng X, Chen L, Yu C, Lei Z, Feng Z, Wei Z.   +5 more
europepmc   +1 more source

Effects of habitat quality and fine‐scale spatial structure on epiphytic lichen and bryophyte communities

Journal of Ecology, Volume 114, Issue 3, March 2026.
Host‐tree identity, particularly bark physico‐chemical traits, emerged as the dominant driver of epiphytic lichen and bryophyte community composition in this closed‐canopy temperate forest system, while microclimate plays a subordinate role. Spatial structure and proximity contributed additional effects for both groups, but for lichens, habitat ...
Theresa Möller, Stefan Kaufmann, Markus Hauck   +2 more
wiley   +1 more source

Addressing ecological challenges from a quantum computing perspective

Methods in Ecology and Evolution, Volume 17, Issue 3, Page 632-649, March 2026.
Abstract With increased access to data and the advent of computers, the use of statistical tools and numerical simulations is becoming commonplace for ecologists. These approaches help improve our understanding of ecological phenomena and their underlying mechanisms in increasingly complex environments.
Maxime Clenet, Maxime Dion, F. Guillaume Blanchet   +2 more
wiley   +1 more source

Solving optimal control problems with integral equations or integral equations - differential with the help of cubic B-spline scaling functions and wavelets

پژوهش‌های ریاضی, 2020
Introduction Optimal control problems (OCPs) appear in a wide class of applications. In the classical control problems, the state-space equations are expressed as differential equations.
Hamid Mesgarani, Hamid Safdari, Abolfazl Ghasemian   +2 more
doaj  

A Mixture Transition Distribution Modeling for Higher‐Order Circular Markov Processes

Journal of Time Series Analysis, Volume 47, Issue 2, Page 304-320, March 2026.
ABSTRACT This study considers the stationary higher‐order Markov process for circular data by employing the mixture transition distribution modeling. The underlying circular transition distribution is based on Wehrly and Johnson's bivariate joint circular models.
Hiroaki Ogata, Takayuki Shiohama
wiley   +1 more source

Population Genomic Structure of Sorghum Landraces Across Landscape, Environment and Culture

Molecular Ecology, Volume 35, Issue 5, March 2026.
ABSTRACT The spread of staple crops to diverse environments over time and their current genetic structure may reflect historical dispersal by humans, sustained human preference for particular traits and adaptation to local environments. Sorghum is a drought‐tolerant crop native to Africa cultivated by hundreds of millions of smallholders globally. Here
Eleanna E. Vasquez Cerda, Emily S. Bellis, Aayudh Das, Emma R. Slayton, Geoffrey P. Morris, Jesse R. Lasky   +5 more
wiley   +1 more source

Solving linear systems of fractional integro-differential equations by Haar and Legendre wavelets techniques

Partial Differential Equations in Applied Mathematics
In this study, we present two highly effective approaches aimed at solving linear systems of equations, specifically focusing on the Fredholm and Volterra equations in fractional integro-differential formula.
Seham Sh. Tantawy
doaj   +1 more source