Resultats globals: 4 registres trobats en 0.02 segons.
Articles, 4 registres trobats
Articles 4 registres trobats  
1.
22 p, 1.6 MB Una estrategia para la formación del profesorado : el caso del cálculo diferencial elemental / Lucas, Catarina Oliveira (Instituto Politécnico Gaya (Portugal)) ; Ruiz-Olarría, Alicia (Universidad Autónoma de Madrid) ; Gascón, Josep (Universitat Autònoma de Barcelona. Departament de Matemàtiques)
Presentamos un trabajo enmarcado en la teoría antropológica de lo didáctico que aborda la relación entre los resultados de la investigación didáctica sobre el estudio escolar de cierto dominio de las matemáticas y el problema docente relativo al qué enseñar y cómo hacerlo en relación con dicho dominio. [...]
This is a paper framed within the anthropological theory of the didactic that addresses the relationship between the results of didactic research on the school study of a certain domain of mathematics and the teaching problem of what to teach and how to do it in relation to that domain. [...]

2023 - 10.5565/rev/ensciencias.5640
Enseñanza de las ciencias, Vol. 41 Núm. 2 (2023) , p. 71-92 (Investigaciones Didácticas)  
2.
33 p, 487.6 KB The Kato Square Root Problem follows from an extrapolation property of the Laplacian / Egert, Moritz (Université Paris-Sud. Laboratoire de Mathématiques d'Orsay) ; Haller-Dintelmann, Robert (Technische Universität Darmstadt. Fachbereich Mathematik) ; Tolksdorf, Patrick (Technische Universität Darmstadt. Fachbereich Mathematik)
On a domain Ω ⊆ _ Rd we consider second-order elliptic systems in divergence-form with bounded complex coefficients, realized via a sesquilinear form with domain H1/0 (Ω) ⊆ V ⊆ H1 (Ω). Under very mild assumptions on Ω and V we show that the solution to the Kato Square Root Problem for such systems can be deduced from a regularity result for the fractional powers of the negative Laplacian in the same geometric setting. [...]
2016 - 10.5565/PUBLMAT_60216_05
Publicacions matemàtiques, Vol. 60 Núm. 2 (2016) , p. 451-483 (Articles)  
3.
26 p, 431.0 KB Layer potentials beyond singular integral operators / Rosén, A.
We prove that the double layer potential operator and the gradient of the single layer potential operator are L2 bounded for general second order divergence form systems. As compared to earlier results, our proof shows that the bounds for the layer potentials are independent of well posedness for the Dirichlet problem and of De Giorgi-Nash local estimates. [...]
2013 - 10.5565/PUBLMAT_57213_08
Publicacions matemàtiques, Vol. 57, Núm. 2 (2013) , p. 429-454  
4.
28 p, 241.9 KB On Lp estimates for square roots of second order elliptic operators on Rn / Auscher, Pascal
We prove that the square root of a uniformly complex elliptic operator L = − div(A∇) with bounded measurable coefficients in Rn satisfies the estimate kL 1/2fkp . k∇fkp for sup(1, 2n n+4 − ε) < p < 2n n−2 + ε, which is new for n ≥ 5 and p < 2 or for n ≥ 3 and p > 2n n−2. [...]
2004 - 10.5565/PUBLMAT_48104_08
Publicacions matemàtiques, V. 48 N. 1 (2004) , p. 159-186  

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