User profiles for Yury Gryazin

Gryazin, Yury

Idaho State University
Verified email at isu.edu
Cited by 212

Parallel FFT algorithms for high-order approximations on three-dimensional compact stencils

R Gonzales, Y Gryazin, YT Lee - Parallel Computing, 2021 - Elsevier
Gryazin et al., 2000; Gryazin, 2014; Gryazin, 2014). As an example of the diversity of applications
of the developed general method, the direct parallel implementation of a compact fourth…

[HTML][HTML] Preconditioned Krylov subspace methods for sixth order compact approximations of the Helmholtz equation

Y Gryazin - ISRN Computational Mathematics, 2014 - hindawi.com
We consider an efficient iterative approach to the solution of the discrete Helmholtz equation
with Dirichlet, Neumann, and Sommerfeld-like boundary conditions based on a compact …

Scalable high-resolution algorithms for landmine imaging problem

YA Gryazin, YT Lee… - Detection and Sensing of …, 2019 - spiedigitallibrary.org
The goal of this paper is to describe a novel parallel high-resolution 3D numerical method
for the solution of high-frequency electromagnetic wave propagation. The sequential …

High-order approximation compact schemes for forward subsurface scattering problems

YA Gryazin - Radar Sensor Technology XVIII, 2014 - spiedigitallibrary.org
We develop an efficient iterative approach to the solution of the discrete three-dimensional
Helmholtz equation with variable coefficients and PML boundary conditions based on …

Parallel Direct Regularized Solver for Power Circuit Applications

YA Gryazin, RB Spielman - … of the Future Technologies Conference (FTC) …, 2021 - Springer
In this paper, a new direct parallel linear solver for a variety of pulsed power applications is
presented. This algorithm is the core of the electrical circuit simulator Screamer considered in …

[PDF][PDF] Optimal, Static Hedging for Collateralized Mortgage Obligations

M Landrigan, Y Gryazin - The Journal of Fixed Income, 2009 - researchgate.net
In order to do OAS or SVM analysis one starts with a term-structure model that generates a
set of calibrated interest rate scenarios.(We use the two-factor Gaussian G2++ as in Brigo and …

Parallel high-resolution compact partial FFT-type direct algorithms for subsurface scattering problems

RL Gonzales II, YA Gryazin - … Biological, Radiological, Nuclear …, 2022 - spiedigitallibrary.org
This paper introduces a direct parallel partial FFT-type algorithm for the numerical solutions
of the two- and three-dimensional Helmholtz equations. The governing equations are …

Scalable FFT-Krylov subspace method for landmine imaging problem

YT Lee, Y Gryazin - Chemical, Biological, Radiological …, 2022 - spiedigitallibrary.org
The objective of this paper is to present an efficient parallel implementation of the iterative
compact high-order approximation numerical solver for 3D Helmholtz equation on multicore …

[PDF][PDF] Scalable Algorithms for High Order Approximations on Compact Stencils

Y Gryazin, R Gonzales, YT Lee - CoRR, 2019 - researchgate.net
The recent development of parallel technologies on modern desktop computers makes
parallelization of the proposed numerical approaches a priority in algorithmic research. The main …

A note on the convergence rate in regularized stochastic programming

E Gordienko, Y Gryazin - Kybernetika, 2021 - dml.cz
We deal with a stochastic programming problem that can be inconsistent. To overcome the
inconsistency we apply Tikhonov's regularization technique, and, using recent results on the …