Results 21 to 30 of about 129,406 (153)
Entrer dans un genre procédural : l’écriture d’un programme de construction en géométrie
Annales de Didactique et de Sciences Cognitives, 2019 The discovery of a procedural genre: the writing of a program of construction in geometry. The writing of a program of geometrical construction is a particular kind of task in so far as it requires the respect of some strict expectations in addition to ...
Karine Millon-Faure +2 more
doaj +1 more source
Highly transitive actions of free products [PDF]
, 2012 We characterize free products admitting a faithful and highly transitive action. In particular, we show that the group $\PSL_2(\Z)\simeq (\Z/2\Z)*(\Z/3\Z)$ admits a faithful and highly transitive action on a countable set.Comment: 15 pages, 4 figures ...
Bestvina +4 more
core +3 more sources
The Bannai-Ito algebra and some applications [PDF]
, 2014 The Bannai-Ito algebra is presented together with some of its applications. Its relations with the Bannai-Ito polynomials, the Racah problem for the sl_{−1}(2) algebra, a superintegrable model with reflections and a Dirac-Dunkl equation on the 2-sphere ...
De Bie, Hendrik +4 more
core +3 more sources
Femmes et mathématiques au Chili [PDF]
Synergies Chili, 2016 Cet article propose un panorama de la féminisation de la recherche en mathématiques au Chili, ainsi qu’un programme de recherche qui permette l’étude sociologique de ce champ scientifique.
María Isabel Cortez, Jeanne Hersant
doaj
Integrable and superintegrable quantum systems in a magnetic field
, 2003 Integrable quantum mechanical systems with magnetic fields are constructed in two-dimensional Euclidean space. The integral of motion is assumed to be a first or second order Hermitian operator. Contrary to the case of purely scalar potentials, quadratic
Berube, Josee, Winternitz, Pavel
core +1 more source
Canadian Journal of Statistics, EarlyView.Abstract We establish the consistency and the asymptotic distribution of the least squares estimators of the coefficients of a subset vector autoregressive process with exogenous variables (VARX). Using a martingale central limit theorem, we derive the asymptotic normal distribution of the estimators. Diagnostic checking is discussed using kernel‐based
Pierre Duchesne +2 more
wiley +1 more source
Scaling limits for the uniform infinite quadrangulation [PDF]
, 2010 The uniform infinite planar quadrangulation is an infinite random graph embedded in the plane, which is the local limit of uniformly distributed finite quadrangulations with a fixed number of faces. We study asymptotic properties of this random graph. In
Département De Mathématiques +2 more
core
Explicit Shimura's conjecture for Sp3 on a computer
, 2006 We compute by a different method the generating series in Shimura's conjecture for Sp3, proved by Andrianov in 1967.
Panchishkin, Alexei, Vankov, Kirill
core +2 more sources
A Markov approach to credit rating migration conditional on economic states
Canadian Journal of Statistics, EarlyView.Abstract We develop a model for credit rating migration that accounts for the impact of economic state fluctuations on default probabilities. The joint process for the economic state and the rating is modelled as a time‐homogeneous Markov chain. While the rating process itself possesses the Markov property only under restrictive conditions, methods ...
Michael Kalkbrener, Natalie Packham
wiley +1 more source
Addressing ecological challenges from a quantum computing perspective
Methods in Ecology and Evolution, EarlyView.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 +2 more
wiley +1 more source