activity
20122019
most citedSimulation of Fractional Brownian Surfaces via Spectral Synthesis on Manifolds

11 citations · 14 across the 5 of their papers we have counts for

collaborators

6 papers

math.DS2019

Critical speeding up as an early warning signal of regime switching

Mathew Titus, Zach Gelbaum, James Watson

The use of critical slowing down as an early warning indicator for regime switching in observations from stochastic environments and noisy dynamical models has been widely studied…

math.FA2019★ 2 cited

Multi-Scale Analysis on Complex Networks using Hermitian Graph Wavelets

Zach Gelbaum, Mathew Titus, James Watson

We construct and study a class of spectral graph wavelets by analogy with Hermitian wavelets on the real line. We provide a localization result that significantly improves upon tho…

cs.CG2013★ 11 cited

Simulation of Fractional Brownian Surfaces via Spectral Synthesis on Manifolds

Zachary Gelbaum, Mathew Titus

Using the spectral decomposition of the Laplace-Beltrami operator we simulate fractal surfaces as random series of eigenfunctions. This approach allows us to generate random fields…

math.PR2013

On the Largest Eigenvalue of Products from the β-Laguerre Ensemble

Zachary Gelbaum

We determine the limiting distribution of the largest eigenvalue of products from the -Laguerre ensemble. This limiting distribution is given by a Tracy-Widom law with parameter…

math.PR2012★ 1 cited

Fractional Brownian Fields over Manifolds

Zachary Gelbaum

Extensions of the fractional Brownian fields are constructed over a complete Riemannian manifold. This construction is carried out for the full range of the Hurst parameter $α\in(0…

math.PR2012

White Noise Representation of Gaussian Random Fields

Zachary Gelbaum

We obtain a representation theorem for Banach space valued Gaussian random variables as integrals against a white noise. As a corollary we obtain necessary and sufficient condition…