activity
20132026
most citedSpectra of Discrete Schrödinger Operators with Primitive Invertible Substitution Potentials

26 citations · 34 across the 10 of their papers we have counts for

collaborators

11 papers

math.SP2026

Continuum Fibonacci Schrödinger Operators in the Strongly Coupled Regime

David Damanik, Mark Embree, Jake Fillman +2

We study Schrödinger operators on the real line whose potentials are generated by the Fibonacci substitution sequence and a rule that replaces symbols by compactly supported potent…

math.DS2025

(Don't) Mind the Gap

Natalie Priebe Frank, May Mei, Kitty Yang

Infinite sequences are of tremendous theoretical and practical importance, and in the Information Age sequences of 0s and 1s are of particular interest. Over the past century, the…

nlin.CG2023

The Game of Life on the Robinson Triangle Penrose Tiling: Still Life

Seung Hyeon Mandy Hong, May Mei

We investigate Conway's Game of Life played on the Robinson triangle Penrose tiling. In this paper, we classify all four-cell still lifes.

math.SP2022

Discontinuities of the Integrated Density of States for Laplacians Associated with Penrose and Ammann-Beenker Tilings

David Damanik, Mark Embree, Jake Fillman +1

Aperiodic substitution tilings provide popular models for quasicrystals, materials exhibiting aperiodic order. We study the graph Laplacian associated with four tilings from the mu…

math.NT2019★ 1 cited

Fixed Points of Augmented Generalized Happy Functions II: Oases and Mirages

Breeanne Baker Swart, Susan Crook, Helen G. Grundman +3

An augmented generalized happy function maps a positive integer to the sum of the squares of its base digits plus . For and , a …

math.SP2017★ 2 cited

Spectral Properties of Continuum Fibonacci Schrödinger Operators

Jake Fillman, May Mei

We study continuum Schrödinger operators on the real line whose potentials are comprised of two compactly supported square-integrable functions concatenated according to an element…

math.NT2016

Fixed Points of Augmented Generalized Happy Functions

Breeanne Baker Swart, Kristen A. Beck, Susan Crook +4

An augmented generalized happy function maps a positive integer to the sum of the squares of its base digits plus . In this paper, we study various properties of…

math.NT2015★ 4 cited

Numbers and the Heights of their Happiness

May Mei, Andrew Read-McFarland

A generalized happy function, maps a positive integer to the sum of its base digits raised to the power. We say that is a base , power, heigh…

math.NT2014

Augmented generalized happy functions

Breeanne Baker Swart, Kristen A. Beck, Susan Crook +4

An augmented happy function, maps a positive integer to the sum of the squares of its base- digits and a non-negative integer . A positive integer is in a cyc…

math-ph2013★ 1 cited

Tridiagonal substitution Hamiltonians

May Mei, William Yessen

We consider a family of discrete Jacobi operators on the one-dimensional integer lattice with Laplacian and potential terms modulated by a primitive invertible two-letter substitut…

math-ph2013★ 26 cited

Spectra of Discrete Schrödinger Operators with Primitive Invertible Substitution Potentials

May Mei

We study the spectral properties of discrete Schrödinger operators with potentials given by primitive invertible substitution sequences (or by Sturmian sequences whose rotation ang…