Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

First-passage time statistics on surfaces of general shape: Surface PDE solvers using Generalized Moving Least Squares (GMLS)

Journal Article · · Journal of Computational Physics
 [1];  [2];  [1]
  1. Univ. of California, Santa Barbara, CA (United States)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Here, we develop numerical methods for computing statistics of stochastic processes on surfaces of general shape with drift-diffusion dynamics dXt = a(Xt)dt + b(Xt )dWt . We formulate descriptions of Brownian motion and general drift-diffusion processes on surfaces. We consider statistics of the form u(x) = Ex [$$∫^{τ}_{0}$$ g(Xt)dt] + Ex [f (Xτ)] for a domain Ω and the exit stopping time τ = inft {t>0 | XiΩ}, where f , g are general smooth functions. For computing these statistics, we develop high-order Generalized Moving Least Squares (GMLS) solvers for associated surface PDE boundary-value problems based on Backward- Kolmogorov equations. We focus particularly on the mean First Passage Times (FPTs) given by the case f = 0, g = 1 where u(x) = Ex [τ]. We perform studies for a variety of shapes showing our methods converge with high-order accuracy both in capturing the geometry and the surface PDE solutions. We then perform studies showing how statistics are influenced by the surface geometry, drift dynamics, and spatially dependent diffusivities.
Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States); Univ. of California, Santa Barbara, CA (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Advanced Scientific Computing Research (ASCR)
Grant/Contract Number:
NA0003525; SC0019246
OSTI ID:
1882875
Alternate ID(s):
OSTI ID: 2331464
Report Number(s):
SAND--2022-0041J; 702770
Journal Information:
Journal of Computational Physics, Journal Name: Journal of Computational Physics Vol. 453; ISSN 0021-9991
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (46)

Spectral Numerical Exterior Calculus Methods for Differential Equations on Radial Manifolds journal December 2017
Mean first passage times of ions between charged surfaces journal January 1990
First-passage time approach to controlling noise in the timing of intracellular events journal January 2017
First Passage Value preprint January 2014
Hydrodynamic Flows on Curved Surfaces: Spectral Numerical Methods for Radial Manifold Shapes text January 2018
Reachable Space Characterization of Markov Decision Processes with Time Variability preprint January 2019
Reproducing kernel particle methods journal April 1995
Mean First-Passage Times in Biology journal August 2016
Convergence and stabilization of stress-point integration in mesh-free and particle methods journal January 2008
The Elements of Statistical Learning book January 2001
A High-Order Kernel Method for Diffusion and Reaction-Diffusion Equations on Surfaces journal February 2013
A Radial Basis Function (RBF)-Finite Difference (FD) Method for Diffusion and Reaction–Diffusion Equations on Surfaces journal September 2014
Compatible meshfree discretization of surface PDEs journal June 2019
Multiquadrics—A scattered data approximation scheme with applications to computational fluid-dynamics—I surface approximations and partial derivative estimates journal January 1990
Multiquadrics—A scattered data approximation scheme with applications to computational fluid-dynamics—II solutions to parabolic, hyperbolic and elliptic partial differential equations journal January 1990
Rates and mean first passage times journal December 1997
Fourth order partial differential equations on general geometries journal July 2006
A simple embedding method for solving partial differential equations on surfaces journal January 2008
Stabilization of RBF-generated finite difference methods for convective PDEs journal March 2011
A grid based particle method for solving partial differential equations on evolving surfaces and modeling high order geometrical motion journal April 2011
A guide to RBF-generated finite differences for nonlinear transport: Shallow water simulations on a sphere journal June 2012
The orthogonal gradients method: A radial basis functions method for solving partial differential equations on arbitrary surfaces journal May 2012
A First-Passage Kinetic Monte Carlo method for reaction–drift–diffusion processes journal February 2014
Mesh-free semi-Lagrangian methods for transport on a sphere using radial basis functions journal August 2018
An RBF-FD closest point method for solving PDEs on surfaces journal October 2018
RBF-LOI: Augmenting Radial Basis Functions (RBFs) with Least Orthogonal Interpolation (LOI) for solving PDEs on surfaces journal November 2018
Meshfree methods on manifolds for hydrodynamic flows on curved surfaces: A Generalized Moving Least-Squares (GMLS) approach journal May 2020
Mean first passage time in a thermally fluctuating viscoelastic fluid journal April 2017
Strong defocusing of molecular reaction times results from an interplay of geometry and reaction control journal December 2018
Mean first passage times in variational coarse graining using Markov state models journal April 2019
A phase transition in the first passage of a Brownian process through a fluctuating boundary with implications for neural coding journal March 2013
Simple computation of reaction–diffusion processes on point clouds journal May 2013
American option valuation using first-passage densities journal November 2013
LIII. On lines and planes of closest fit to systems of points in space journal November 1901
Mean first-passage times in confined media: from Markovian to non-Markovian processes journal April 2015
Surfaces generated by moving least squares methods journal September 1981
On generalized moving least squares and diffuse derivatives journal September 2011
Smoothed particle hydrodynamics: theory and application to non-spherical stars journal December 1977
Impact of morphology on diffusive dynamics on curved surfaces journal March 2014
Solving Partial Differential Equations on Point Clouds journal January 2013
First Passage Statistics for the Capture of a Brownian Particle by a Structured Spherical Target with Multiple Surface Traps journal January 2017
A Kernel-Based Embedding Method and Convergence Analysis for Surfaces PDEs journal January 2018
A Simple Mesh Generator in MATLAB journal January 2004
An overview of the Trilinos project journal September 2005
Théorie de la spéculation journal January 1900
SymPy: symbolic computing in Python journal January 2017