6 citations · 14 across the 23 of their papers we have counts for
29 papers
Automorphisms of K3 surfaces, cyclotomic polynomials and orthogonal groups
Eva Bayer-Fluckiger
Let X be a complex projective K3 surface, and let T(X) be its transcendental lattice; the characteristic polynomials of the isometries of T(X) induced by automorphisms of X are pow…
Automorphisms of K3 surfaces, signatures, and isometries of lattices
Eva Bayer-Fluckiger
Every Salem numbers of degree 4,6,8,12,14 or 16 is the dynamical degree of an automorphism of a non-projective K3 surface. We define a notion of signature of an automorphism, and u…
Alexander polynomials and signatures of some high-dimensional knots
Eva Bayer-Fluckiger
We give necessary and sufficient conditions for an integer to be the signature of a (4q-1)-knot in the (4q+1)-sphere with a given square-free Alexander polynomial.
Norm tori of etale algebras and unramified Brauer groups
Eva Bayer-Fluckiger, Ting-Yu Lee
Let be a field, and let be an étale k-algebra of finite rank. If is a nonzero element in , let be the affine variety defined by the norm equation $N_{L/k}(x) =…
Embeddings of maximal tori in classical groups, odd degree descent and Hasse principles
Eva Bayer-Fluckiger, Tingyu Lee, Raman Parimala
The aim of this paper is to revisit the question of local-global principles for embeddings of étale algebras with involution into central simple algebras with involution over globa…
Isometries of lattices and automorphisms of K3 surfaces
Eva Bayer-Fluckiger
The aim of this paper is to give necessary and sufficient conditions for an integral polynomial to be the characteristic polynomial of a semi-simple isometry of some even unimodula…