3 citations · 4 across the 4 of their papers we have counts for
5 papers
A composition law and refined notions of convergence for periodic continued fractions
Bradley W. Brock, Bruce W. Jordan, Lawren Smithline
We define an equivalence relation on periodic continued fractions with partial quotients in a ring , a group law on these equivalence classes, and…
Linear independence in linear systems on elliptic curves
Bradley W. Brock, Bruce W. Jordan, Bjorn Poonen +2
Let be an elliptic curve, with identity , and let be a cyclic subgroup of odd order , over an algebraically closed field with . For…
Purely inseparable Richelot isogenies
Bradley W. Brock, Everett W. Howe
We show that if is a supersingular genus- curve over an algebraically-closed field of characteristic , then there are infinitely many Richelot isogenies starting from …
Periodic continued fractions over -integers in number fields and Skolem's -adic method
Bradley W. Brock, Noam D. Elkies, Bruce W. Jordan
We generalize the classical theory of periodic continued fractions (PCFs) over to rings of -integers in a number field. Let ${\mathcal B}=\{β, {β^*}…
On Generalized Hadamard Matrices and Difference Matrices:
Bradley W. Brock, Robert Compton, Warwick de Launey +1
We give some very interesting matrices which are orthogonal over groups and, as far as we know, referenced, but in fact undocumented. This note is not intended to be published but…