activity
20112026
most citedA fast simple algorithm for computing the potential of charges on a line

25 citations · 57 across the 12 of their papers we have counts for

collaborators

12 papers

cs.MS2026

Algorithm librla: A library of randomized linear algebra routines

Adrianna Gillman, Zydrunas Gimbutas

The library \texttt{librla} is a randomized linear algebra library that is specifically designed for the intermediate-sized matrices (of dimension up to roughly 10,000) that arise…

quant-ph2026

Precise 2D electric field density simulations for superconducting quantum devices

Zydrunas Gimbutas, Wei-Ren Syong, Nhi Nguyen +5

Dielectric loss due to two-level systems is a limiting factor for superconducting qubit relaxation times. These losses arise mostly from nanometer-scale interfacial defect regions…

math.NA2026

A parametrix for the surface Stokes equation

Tristan Goodwill, Jeremy Hoskins, Zydrunas Gimbutas +1

We introduce an integral equation formulation of the surface Stokes equations, constructed using two-dimensional Stokeslets. The resulting integral equations are Fredholm integral…

math.NA2019★ 25 cited

A fast simple algorithm for computing the potential of charges on a line

Zydrunas Gimbutas, Nicholas F. Marshall, Vladimir Rokhlin

We present a fast method for evaluating expressions of the form where are…

math.NA2019★ 3 cited

Evaluation of Abramowitz functions in the right half of the complex plane

Zydrunas Gimbutas, Shidong Jiang, Li-Shi Luo

A numerical scheme is developed for the evaluation of Abramowitz functions in the right half of the complex plane. For , the scheme utilizes series expan…

math.NA2016★ 4 cited

A Fast Summation Method for Oscillatory Lattice Sums

Ryan Denlinger, Zydrunas Gimbutas, Leslie Greengard +1

We present a fast summation method for lattice sums of the type which arise when solving wave scattering problems with periodic boundary conditions. While there are a variety of ef…

physics.flu-dyn2015★ 2 cited

Simple and efficient representations for the fundamental solutions of Stokes flow in a half-space

Zydrunas Gimbutas, Leslie Greengard, Shravan Veerapaneni

We derive new formulas for the fundamental solutions of slow, viscous flow, governed by the Stokes equations, in a half-space. They are simpler than the classical representations o…

math-ph2014

The Decoupled Potential Integral Equation for Time-Harmonic Electromagnetic Scattering

Felipe Vico, Leslie Greengard, Miguel Ferrando +1

We present a new formulation for the problem of electromagnetic scattering from perfect electric conductors. While our representation for the electric and magnetic fields is based…

math-ph2014

A fast multipole method for the evaluation of elastostatic fields in a half-space with zero normal stress

Zydrunas Gimbutas, Leslie Greengard

In this paper, we present a fast multipole method (FMM) for the half-space Green's function in a homogeneous elastic half-space subject to zero normal stress, for which an explicit…

math.NA2014★ 11 cited

Randomized methods for rank-deficient linear systems

Josef Sifuentes, Zydrunas Gimbutas, Leslie Greengard

We present a simple, accurate method for solving consistent, rank-deficient linear systems, with or without addi- tional rank-completing constraints. Such problems arise in a varie…

physics.class-ph2012★ 12 cited

A consistency condition for the vector potential in multiply-connected domains

Charles L. Epstein, Zydrunas Gimbutas, Leslie Greengard +2

A classical problem in electromagnetics concerns the representation of the electric and magnetic fields in the low-frequency or static regime, where topology plays a fundamental ro…

math.NA2011

Fast multi-particle scattering: a hybrid solver for the Maxwell equations in microstructured materials

Zydrunas Gimbutas, Leslie Greengard

A variety of problems in device and materials design require the rapid forward modeling of Maxwell's equations in complex micro-structured materials. By combining high-order accura…