Results 31 to 40 of about 139,844 (158)
Attitudes des élèves en mathématiques : quand le contexte fait ressortir l'importance des émotions
La Revue LEeE, 2021 Cet article a pour objectif de mieux comprendre le fonctionnement des attitudes des élèves dans la résolution de problèmes mathématiques. Plus spécifiquement, il vise à voir dans quelle mesure ces attitudes peuvent jouer un rôle différent selon le ...
Philippe A. Genoud
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Non‐negative Gaussian estimation of variance components in random effects models
Canadian Journal of Statistics, EarlyView.Abstract When used to estimate variance components (VCs), confidence intervals (CIs) can be truncated at zero, have a point estimate not in the quoted CI, be empty with positive probability, or be all‐inclusive. This is because they have conflicting dual roles, since they are considered to cover the parameter with a specified probability while also ...
André Plante, Michael Plante
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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
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Communications on Pure and Applied Mathematics, EarlyView.ABSTRACT The leading‐order asymptotic behavior of the solution of the Cauchy initial‐value problem for the Benjamin–Ono equation in L2(R)$L^2(\mathbb {R})$ is obtained explicitly for generic rational initial data u0$u_0$. An explicit asymptotic wave profile uZD(t,x;ε)$u^\mathrm{ZD}(t,x;\epsilon)$ is given, in terms of the branches of the multivalued ...
Elliot Blackstone +3 more
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Logique et mathématiques chez Hegel. Les formalisations de la logique en question
Mosaïque, 2013 Quoi qu’on n’ignore pas les développements importants et positifs que Hegel consacre à la mathématique de l’infini, aux calculs différentiel et intégral, son discours est dans l’ensemble très sévère à l’égard des mathématiques. Pour l’expliquer,
Claire Pagès
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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
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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
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Weak compactness and Orlicz spaces [PDF]
, 2008 We give new proofs that some Banach spaces have Pe{\l}czy\'nski's property $(V)$
Lefèvre, Pascal +3 more
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Front Propagation Through a Perforated Wall
Communications on Pure and Applied Mathematics, EarlyView.ABSTRACT We consider a bistable reaction– diffusion equation ut=Δu+f(u)$u_t=\Delta u +f(u)$ on RN${\mathbb {R}}^N$ in the presence of an obstacle K$K$, which is a wall of infinite span with many holes. More precisely, K$K$ is a closed subset of RN${\mathbb {R}}^N$ with smooth boundary such that its projection onto the x1$x_1$‐axis is bounded and that ...
Henri Berestycki +2 more
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GlossaContexte : Les compétences en mathématiques sont essentielles, celles-ci étant omniprésentes dans les pays industrialisés. Les difficultés en mathématiques perdurent à l’âge adulte chez les personnes présentant un trouble spécifique des apprentissages en
Marion Lavest +2 more
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