Robust Estimation of Position-Dependent Anisotropic Diffusivity Tensors from Stochastic Trajectories
Domingues T, Coifman R, Haji-Akbari A. Robust Estimation of Position-Dependent Anisotropic Diffusivity Tensors from Stochastic Trajectories. The Journal Of Physical Chemistry B 2023, 127: 5273-5287. PMID: 37261948, DOI: 10.1021/acs.jpcb.3c00670.Peer-Reviewed Original ResearchTime discretizationStochastic trajectoriesMechanical observablesDiffusivity tensorAnisotropic diffusivity tensorPointwise estimatesRigorous generalizationRobust estimationCovariance estimatorDifferent functional formsLocal covarianceKernel-based approachEstimatorFunctional estimatesDiscretizationFunctional formOrthogonal functionsBulk systemKernel functionConfined systemSuch methodsObservablesTensorTransport propertiesCovariance-based estimator