Results 101 to 110 of about 17,865 (205)

The iterative solution of the problem of orbit determination using Chebyshev series [PDF]

A method of orbit determination is investigated which employs Picard iteration and Chebyshev series. The method is applied to the problem of determining the orbit of an earth satellite from range and range-rate observations contaminated by noise.
Feagin, T.
core   +1 more source

Haplotype‐Based Analysis of OCA2 Variants in Oculocutaneous Albinism

Pigment Cell &Melanoma Research, Volume 39, Issue 3, May 2026.
This study defines multi‐allele haplotypes, comprised of rare disease variants combined with common eQTL, sQTL and GWAS variants, for oculocutaneous albinism type 2 (OCA2). These haplotypes have implications for variant pathogenicity assessments and phenotypic variability.
Meredith F. Gillis, Madeleine R. Ames, Linnea Lundh, Valer Gotea, Laura Elnitski, Frank Donovan, NISC Comparative Sequencing Program, Adebowale Adeyemo, Charles Rotimi, Brian Brooks, Wadih Zein, William Gahl, William S. Oetting, David R. Adams, Stacie K. Loftus   +14 more
wiley   +1 more source

On the Influence of Mineral Dust on Glacial Albedo at Nevado Huascarán (Cordillera Blanca, Peru)

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 7, 16 April 2026.
Abstract In addition to warming and hydrological changes, glacier retreat is influenced by mineral dust and other light absorbing impurities. However, very little is known about the presence of mineral dust in the tropical Andes, making it difficult to model the radiative impact of dust on glacial surfaces.
Austin M. Weber, Emilie Beaudon, M. Roxana Sierra‐Hernández, Mary Davis, Don Kenny, Tal Y. Shutkin, Lonnie G. Thompson   +6 more
wiley   +1 more source

Stability of Fixed Points of Partial Contractivities and Fractal Surfaces

Axioms
In this paper, a large class of contractions is studied that contains Banach and Matkowski maps as particular cases. Sufficient conditions for the existence of fixed points are proposed in the framework of b-metric spaces.
María A. Navascués
doaj   +1 more source

Numerical results of fractional order difference system for norovirus disease with feedback neural networking

Boundary Value Problems
In this article, we study and analyze a novel discrete SEAIRF compartmental model in the Caputo sense to investigate the complex transmission dynamics of Norovirus, a highly infectious pathogen known for its strong environmental persistence. We carefully
Manar A. Alqudah, Aziz Khan, Fatemah Mofarreh, Thabet Abdeljawad   +3 more
doaj   +1 more source

Study of circulating liquid fuel in a 1D critical system with thermal feedback

Nuclear Engineering and Technology
This research focuses on the description and modeling of a one-dimensional molten salt reactor (MSR), in the presence of thermal feedback. Following the example of previous works, a simple one-dimensional system is proposed, describing a molten salt ...
Mathis Caprais, Daniele Tomatis, André Bergeron   +2 more
doaj   +1 more source

Solving stiff problems using generalized picard iteration

, 2012
The main point of the talk is an alternative approach to the construction of numerical methods for stiff problems. It can be interpreted as a generalization of fixed-point iterations for implementation of implicit collocation methods. The algorithms proposed combine easy implementation and low cost of iterations with superior convergence properties on ...
Bobkov, V. V., Faleichik, B. V., Mandrik, P. A., Repnikov, V. I.   +3 more
openaire   +1 more source

Equivalence of the convergences of T-Picard, T-Mann and T-Ishikawa iterations for the class of T-Zamfirescu operators

Le Matematiche, 2014
In this paper, we prove the equivalence between the convergences of T-Picard iteration, T-Mann iteration and T-Ishikawa iteration for the class ofT-Zamfirescu operators in normed linear spaces.
Priya Raphael, Shaini Pulickakunnel
doaj  

Picard-like iterations for nonlinear equations involving -accretive operators

Journal of Inequalities and Applications, 2002
Let be an arbitrary real normed linear space and let be a -Lipschitz strongly -accretive operator. It is proved that Picard-like iteration processes converge strongly to the unique solutions of the operator equations and where is an arbitrary but ...
Moore Chika
doaj  

Picard-type iterations for solving Fredholm integral equations

, 2021
The theoretical solution of Fredholm integral equations involves the calculus of the inverse of an operator. However, for practical purposes, the calculus of this inverse could be not possible or very complicated. For this reason, our aim in this talk is to use iterative methods for approaching such inverse and therefore the solution of the given ...
Gutiérrez, José M., Hernández Verón, Miguel A.   +1 more
openaire   +1 more source