Exploració per tema "Àlgebra abstracta"
Ara es mostren els items 1-7 de 7
-
Cohomología local con soporte un ideal monomial (D-módulos y combinatoria)
(Edicions UPC, 2000)
Text en actes de congrés
Accés restringit per política de l'editorialWe study, by using the theory of algebraic D-modules, the local cohomology modules supported on a monomial ideal I of the polynomial ring R = k[x1, . . . , xn], where k is a field of characteristic zero. We compute the ... -
Commutative semifields of rank 2 over their middle nucleus
(Springer, 2001)
Comunicació de congrés
Accés restringit per política de l'editorialThis article is about finite commutative semifields that are of rank 2 over their middle nucleus, the largest subset of elements that is a finite field. These semifields have a direct correspondence to certain flocks of ... -
Polynomials in finite geometries
(Cambridge University Press, 1999)
Comunicació de congrés
Accés obertA method of using polynomials to describe objects in finite geometries is outlined and the problems where this method has led to a solution are surveyed. These problems concern nuclei, affine blocking sets, maximal arcs ... -
Rainbow-free 3-colorings in abelian groups
(2009-07-27)
Article
Accés obertA 3–coloring of an abelian group G is rainbow–free if there is no 3–term arithmetic progression with its members having pairwise distinct colors. We describe the structure of rainbow–free colorings of abelian groups. ... -
Square-free discriminants of Frobenius rings
(2010-09)
Article
Accés obertLet E be an elliptic curve over Q. It is well known that the ring of endomorphisms of $E_p$, the reduction of E modulo a prime p of ordinary reduction, is an order of the quadratic imaginary field $Q(\pi_p)$ generated ... -
Symplectic spreads and permutation polynomials
(Springer, 2004)
Comunicació de congrés
Accés restringit per política de l'editorialEvery symplectic spread of PG(3, q), or equivalently every ovoid of Q(4, q), is shown to give a certain family of permutation polynomials of GF(q) and vice-versa. This leads to an algebraic proof of the existence of the ... -
The polynomial method in Galois geometries
(Nova Science Publishers, 2012)
Capítol de llibre
Accés restringit per política de l'editorialThe polynomial method refers to the application of polynomials to combinatorial problems. The method is particularly effective for Galois geometries and a number of problems and conjectures have been solved using the ...