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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 ...
FRACCIONES PARCIALES: ELEMENTOS PARA UNA DISCUSIÓN EN EL AULA
(2005)
Estudios recientes sugieren que las propuestas curriculares para los diferentes niveles básicos de instrucción se elaboren tomando en cuenta una presentación estructurada ascendente de los temas a discutir. Así mismo, se ...