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RADICAL EXTENSIONS AND CROSSED HOMOMORPHISMS
(2001)
If Q./F is a Galois extension with Galois group G and /x(fi) denotes the group of roots of unity in Q, we use the group Z1{G,fi(Q)) of crossed homomorphisms to study radical extensions inside Q. Furthermore, we characterise ...
International Journal of Pure and Applied Mathematics
(2008)
I.M. Isaacs has proven a very interesting theorem concerning solvability of polynomials by real radicals. His result deals with an irreducible polynomial over the field of rational numbers which has a real radical element ...
FORMULANDO CONJETURAS MATEMÁTICAS EN ACTIVIDADES DE APRENDIZAJE ASISTIDAS CON TECNOLOGÍA
(2008)
¿Qué tipo de actividades deberían incluir los programas de desarrollo profesional para revisar y ampliar los conocimientos matemáticos y pedagógicos de los profesores de bachillerato? Proponemos una ruta para involucrar a ...
FÓRMULAS DE TIPO-WEYL PARA DOMINIOS EXTERIORES
(2003)
Se presenta un recuento histórico de comportamientos asintóticos de tipo-Weyl para dominios exteriores
Eigenfunction expansions and spectral projections for isotropic elasticity outside an obstacle
(2004)
We consider the operator ??? grad div acting on an exterior domain ? in Rn (with? >0 and n = 2, 3) subject to Dirichlet boundary conditions. The spectral resolution for the operator is written in terms of an expansion of ...