activity
20092022
most citedEuclidean Ideals in Quadratic Imaginary Fields

2 citations · 5 across the 8 of their papers we have counts for

collaborators

8 papers

math.NT2022★ 1 cited

Some dynamics in real quadratic fields with applications to inhomogeneous minima

Nick Ramsey

Let be a real quadratic field. We use a symbolic coding of the action of a fundamental unit on the real -torus associated to to study the family of subsets of norm…

math.DS2022

Perturbing Subshifts of Finite Type

Nick Ramsey

Given an SFT and a finite set of finite words, let denote the subshift of that avoids . We establish a general criterion under which we can bound…

math.DS2019★ 1 cited

Perturbing subshifts of finite type: two words

Nick Ramsey

We bound the change in entropy incurred by an irreducible subshift of finite type upon perturbing it by forbidding a pair of admissible words. Lind has proven such bounds in the on…

math.NT2009

via distributions on weight space

Nick Ramsey

We introduce a certain ring of rigid-analytic distributions on -adic weight space (modulo torsion) and show that it is canonically isomorphic to Colmez's ring …

math.NT2009★ 2 cited

Euclidean Ideals in Quadratic Imaginary Fields

Hester Graves, Nick Ramsey

We classify all quadratic imaginary number fields that have a Euclidean ideal class. There are seven of them, they are of class number at most two, and in each case the unique clas…

math.NT2009★ 1 cited

The overconvergent Shimura lifting

Nick Ramsey

We construct a rigid-analytic map from the the author's half-integral weight cuspidal eigencurve to its integral weight counterpart that interpolates the classical Shimura lifting.