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Now showing items 31-36 of 36
Analytical and rheological studies of modified gel dosimeters exposed to X-ray beams
(2016)
The need to know the dose of X-rays to be applied to patients suffering diseases such as cancer requires accurate and stable dosimetric devices. Currently, the use of gelatin-based dosimeters has yielded excellent results ...
Lie subalgebras of the matrix quantum pseudodifferential operators
(2016)
We give a complete description of the anti-involutions that preserve the principal gradation of the algebra of matrix quantum pseudodifferential operators and we describe the Lie subalgebras of their minus fixed points.
Interpolation of geometric structures compatible with a pseudo Riemannian metric
(2016)
Let (M, g) be a pseudo Riemannian manifold. We consider four geometric structures on M compatible with g: two almost complex and two almost product structures satisfying additionally certain integrability conditions. For ...
Matrix Gegenbauer polynomials : the 2×2 fundamental cases
(2016)
In this paper, we exhibit explicitly a sequence of 2 × 2 matrix valued orthogonal polynomials
with respect to a weight W p,n , for any pair of real numbers p and n such that 0 < p < n. The entries of these polynomiales ...
Critical exponents and scaling invariance in the absence of a critical point
(2016)
The paramagnetic-to-ferromagnetic phase transition is classified as a critical phenomenon due to the power-law behaviour shown by thermodynamic observables when the Curie point is approached. Here we report the observation ...
La articulación entre saberes matemáticos extraescolares y escolares en el trabajo docente en EDJA
(2016)
Esta comunicación se enmarca en un trabajo de investigación sobre la
enseñanza de las matemáticas en el nivel primario de la modalidad de jóvenes y adultos. En esta indagación se busca comprender las prácticas docentes y ...