activity
20172026
most citedNodal Statistics On Quantum Graphs

18 citations · 44 across the 16 of their papers we have counts for

collaborators

16 papers

cond-mat.soft2026

Wave Transport in Fourier Quasicrystals Revealed by Water Waves

Angélique Campaniello, Lior Alon, Rémi Carminati +2

Fourier quasicrystals are aperiodic structures whose diffraction spectrum consists not of a dense set of Bragg peaks, as in ordinary quasicrystals, but of isolated ones scattered a…

math-ph2025

Nodal Count for Orthogonally Invariant Ensembles

Lior Alon, Dan Mikulincer, John Urschel

We investigate the nodal count of eigenvectors of random matrices interpreted as operators on signed complete graphs. Our focus is on orthogonally invariant ensembles, with particu…

math.AG2025

Periodic Hypersurfaces and Lee-Yang Polynomials

Lior Alon, Mario Kummer

We study periodic measures on whose Fourier transform is confined to a proper double cone, in the sense of Meyer's notion of lighthouse measures. Lee--Yang polynomia…

math-ph2025

Smooth critical points of eigenvalues on the torus of magnetic perturbations of graphs

Lior Alon, Gregory Berkolaiko, Mark Goresky

Motivated by the nodal distribution universality conjecture for discrete operators on graphs and by the spectral analysis of their maximal abelian covers, we consider a family of H…

math-ph2024★ 3 cited

Higher Dimensional Fourier Quasicrystals from Lee-Yang Varieties

Lior Alon, Mario Kummer, Pavel Kurasov +1

In this paper, we construct Fourier quasicrystals with unit masses in arbitrary dimensions. This generalizes a one-dimensional construction of Kurasov and Sarnak. To do this, we em…

math-ph2024

Average Nodal Count and the Nodal Count Condition for Graphs

Lior Alon, John Urschel

The nodal edge count of an eigenvector of the Laplacian of a graph is the number of edges on which it changes sign. This quantity extends to any real symmetric matrix s…

math-ph2024★ 1 cited

Nodal count for a random signing of a graph with disjoint cycles

Lior Alon, Mark Goresky

Let be a simple, connected graph on vertices, and further assume that has disjoint cycles. Let be a real symmetric matrix supported on (for example, a discrete…

math-ph2023

Gap distributions of Fourier quasicrystals via Lee-Yang polynomials

Lior Alon, Cynthia Vinzant

Recent work of Kurasov and Sarnak provides a method for constructing one-dimensional Fourier quasicrystals (FQ) from the torus zero sets of a special class of multivariate polynomi…

math.CV2023★ 5 cited

Every real-rooted exponential polynomial is the restriction of a Lee-Yang polynomial

Lior Alon, Alex Cohen, Cynthia Vinzant

A Lee-Yang polynomial is a polynomial that has no zeros in the polydisc and its inverse $ (\mathbb{C}\setminus\overline{\mathbb{D}})^{n…

math-ph2022

Morse theory for discrete magnetic operators and nodal count distribution for graphs

Lior Alon, Mark Goresky

Given a discrete Schrödinger operator on a finite connected graph of vertices, the nodal count denotes the number of edges on which the -th eigenvector chan…

math.CO2022★ 2 cited

Generic Laplace eigenfunctions on metric graphs

Lior Alon

It is known that up to certain pathologies, a compact metric graph with standard vertex conditions has a Baire-generic set of choices of edge lengths such that all Laplacian eigenv…

math-ph2021★ 7 cited

Universality of nodal count distribution in large metric graphs

Lior Alon, Ram Band, Gregory Berkolaiko

An eigenfunction of the Laplacian on a metric (quantum) graph has an excess number of zeros due to the graph's non-trivial topology. This number, called the nodal surplus, is an in…

math-ph2020★ 5 cited

Quantum graphs -- Generic eigenfunctions and their nodal count and Neumann count statistics

Lior Alon

In this thesis, we study Laplacian eigenfunctions on metric graphs, also known as quantum graphs. We restrict the discussion to standard quantum graphs. These are finite connected…

math-ph2019★ 3 cited

Neumann Domains on Quantum Graphs

Lior Alon, Ram Band

The Neumann points of an eigenfunction on a quantum (metric) graph are the interior zeros of . The Neumann domains of are the sub-graphs bounded by the Neumann points.…

math.SP2018

Neumann Domains on Graphs and Manifolds

Lior Alon, Ram Band, Michael Bersudsky +1

The nodal set of a Laplacian eigenfunction forms a partition of the underlying manifold or graph. Another natural partition is based on the gradient vector field of the eigenfuncti…

math-ph2017★ 18 cited

Nodal Statistics On Quantum Graphs

Lior Alon, Ram Band, Gregory Berkolaiko

It has been suggested that the distribution of the suitably normalized number of zeros of Laplacian eigenfunctions contains information about the geometry of the underlying domain.…