decay

Estimate spectral coefficient decay rates to guide dimension-adaptive refinement.

Specification

• Alias: None

• Arguments: None

Description

Estimate spectral coefficient decay rates from a rate estimation technique similar to Richardson extrapolation. These decay rates are used to guide dimension-adaptive refinement, where slower decay rates result in higher dimension preference.

Examples

method,
        polynomial_chaos
          sparse_grid_level = 3
          dimension_adaptive p_refinement decay
            max_iterations  = 20
            convergence_tol = 1.e-4