Results 31 to 40 of about 549,846 (111)

The structure of extended function groups

Cubo, 2021
Conformal (respectively, anticonformal) automorphisms of the Riemann sphere are provided by the Möbius (respectively, extended Möbius) transformations.
Rubén A. Hidalgo
doaj   +1 more source

Unveiling the “Gray Zone”: Characterizing Young People's Moderate STEM Identities

Journal of Research in Science Teaching, Volume 63, Issue 7, Page 691-711, September 2026.
ABSTRACT Understanding how students identify with STEM (Science, Technology, Engineering, Mathematics) is crucial for fostering broader and more equitable participation within these fields. While existing research has focused on students who either strongly identify with STEM or disengage from it, this study explores the moderate STEM identities of ...
Carme Grimalt‐Álvaro, Digna Couso, Henriette Tolstrup Holmegaard   +2 more
wiley   +1 more source

On Eulerian equilibria in K-order approximation of the gyrostat in the three-body problem

International Journal of Mathematics and Mathematical Sciences, 2006
We consider the noncanonical Hamiltonian dynamics of a gyrostat in the three-body problem. By means of geometric-mechanics methods we study the approximate Poisson dynamics that arises when we develop the potential in series of Legendre and truncate this
J. A. Vera, A. Vigueras
doaj   +1 more source

High Relative Accuracy Computations With Covariance Matrices of Order Statistics

Mathematical Methods in the Applied Sciences, Volume 49, Issue 11, Page 11794-11810, 30 July 2026.
ABSTRACT In many statistical applications, numerical computations with covariance matrices need to be performed. The error made when performing such numerical computations increases with the condition number of the covariance matrix, which is related to the number of variables and the strength of the correlation between the variables. In a recent work,
Juan Baz, Pedro Alonso, Juan Manuel Peña, Raúl Pérez‐Fernández   +3 more
wiley   +1 more source

Probabilidad y estadística matemática [PDF]

, 2011
Documento PDF, 139 páginasGuía de estudio para el curso Probabilidad y estadística matemática, código 3002, que se imparte en el Programa de Profesorado en la Enseñanza de la Matemática de la UNED.Universidad Estatal a Distancia de Costa ...
Hernández Solís, Luis A.
core  

NCG66/20: Programa de Doctorado en Estadística Matemática y Aplicada [PDF]

, 2012
Programa de Doctorado en Estadística Matemática y Aplicada.
Universidad de Granada
core   +1 more source

Inference on a Stochastic Bass Model for New Product Adoption

Applied Stochastic Models in Business and Industry, Volume 42, Issue 4, July/August 2026.
ABSTRACT This paper investigates stochastic versions of the classical Bass diffusion model, with a focus on the development and comparison of parameter estimation procedures. Two stochastic processes that generalize the classical Bass model, which is commonly used to describe sales dynamics in emerging markets, are considered.
Giuseppina Albano, Antonio Barrera, Virginia Giorno, Francisco Torres‐Ruiz   +3 more
wiley   +1 more source

Modeling Patterns of Population Exposure With a Multiscale Framework Utilizing LOTOS‐EUROS Chemical Transport Model, Mobility Surveys and Particulate Toxicity

GeoHealth, Volume 10, Issue 7, July 2026.
Abstract The present study proposes a high‐resolution, multi‐component framework to estimate human exposure to air pollution in tropical urban environments, addressing complex topography and limited historical mobility and exposure data. This framework is applied to the city of Medellín in the Aburrá Valley in Colombia. To assess population exposure to
Valeria Solórzano‐Araque, Andrés Yarce Botero, Jhon Edinson Hinestroza‐Ramirez, Fernando Fernandez‐Restrepo, Sebastian Carmona Estrada, Pablo Alberto Osorio‐Marulanda, Lisseth Cruz‐Ruiz, Santiago Isaza‐Cadavid, O. L. Quintero   +8 more
wiley   +1 more source

Analysis and reliability of separable systems

Operations Research Perspectives, 2021
The operation of a system, such as a vehicle, communication network or automatic process, heavily depends on the correct operation of its components.
Héctor Cancela, Gustavo Guerberoff, Franco Robledo, Pablo Romero   +3 more
doaj   +1 more source

Mangrove expansion in a large river delta is dependent on foreshore geomorphology

Journal of Applied Ecology, Volume 63, Issue 7, July 2026.
Our findings provide guidance for large‐scale mangrove restoration, particularly in tropical river deltas, by identifying sites where (1) mangroves can potentially expand in the future, and (2) conditions are favourable for active mangrove seedling planting. The presence of a mudflat in front of existing mangroves is not sufficient.
Maria‐Esther Espinoza‐Celi, Jean‐Philippe Belliard, Gregory S. Fivash, Luis Dominguez‐Granda, Ignace Pelckmans, John Ramos‐Veliz, Jorge Peñaherrera, Stijn Temmerman   +7 more
wiley   +1 more source