Buscar
Mostrando ítems 1-10 de 39
Automorphisms in a class of Jordan Bernstein algebras of order 2
(Marcel Dekker Inc., 1997)
On the nilpotence of the multiplication operator in commutative right nil algebras
(2002)
We study conditions under which the identity ((xx)x)x = 0 in a commutative nonassociative algebra A implies Rx is nil-potent where Rx is the multiplication operator Rx(y) = xy for all y in A. The separate conditions that ...
Intertwining operators for L2(E)
(Marcel Dekker Inc., 1998)
Let (E, Q) be a finite dimensional quadratic vector space over a finite field. For the natural representation π of the isometry group G of (E, Q) in the space L2(E) of all complex valued functions on E, we analyse when the ...
A note on generic splitting of quadratic forms
(Marcel Dekker Inc., 1999)
Let F be a field of any characteristic. For n ≥ 0, let J(n) = {q̄ ∈ Wq(F)| deg(q) ≥ n}. The degree conjecture asserts that for each n ≥ 0 (DC) J(n) = InWq(F) Let p be any n-fold quadratic Pfister form over F and F(p) the ...
Semiprimality and nilpotency of nonassociative rings satisfying x(yz)=y(zx)
(2008)
In this article we study nonassociative rings satisfying the polynomial identity x(yz)=y(zx), which we call "cyclic rings." We prove that every semiprime cyclic ring is associative and commutative and that every cyclic ...
A criterion for an abelian variety to be non-simple
(Elsevier B.V., 2017)
We give a criterion in terms of period matrices for an arbitrary polarized abelian
variety to be non-simple. Several examples are worked out.
Direct image of parabolic line bundles
(Elsevier B.V., 2018)
© 2017 Elsevier B.V. Given a vector bundle E, on an irreducible projective variety X, we give a necessary and sufficient criterion for E to be a direct image of a line bundle under a surjective étale morphism. The criterion ...