serif::solver::preconditioner::strategies::surface Namespace Reference

Classes
struct	CalibratedSurfaceMass
	Calibrate a signed multiple of the native reference mass diagonal with bounded deterministic probes. More...
struct	FittedSurfaceH1
	Fit a signed positive mass-plus-stiffness operator on a nodal stellar surface. More...
struct	ReferenceSurfaceMass
	Use the native reference boundary mass without fitting candidate-dependent physical scales. More...
struct	SurfaceH1Fit
	Keep a positive backend operator while preserving the sign of the physical shape response. More...
struct	SurfaceH1Moments
	Accumulated inner products of mass, stiffness, and physical target actions. More...
struct	SurfaceMassFit
	Retain the scalar least-squares evidence and the signed surrogate and inverse multipliers. More...

Enumerations
enum class	CalibrationTarget { surface_jacobian , material_schur }
	Choose the physical shape response, with or without approximate material relaxation. More...
enum class	CalibrationObjective { operator_action , right_preconditioned_action }
	Fit the shape operator itself, or its action after applying the reference mass inverse. More...

Functions
std::expected< SurfaceMassFit, Failure >	try_fit_surface_mass (double numerator, double denominator, CalibrationObjective objective)
	Solve either scalar calibration objective without discarding the physical sign.
std::expected< SurfaceH1Fit, Failure >	try_fit_surface_h1_coefficients (const SurfaceH1Moments &moments, FittedSurfaceH1 options={})
	Solve the two signed constrained least-squares problems with positive mass and nonnegative stiffness.

Enumeration Type Documentation

CalibrationObjective

enum class serif::solver::preconditioner::strategies::surface::CalibrationObjective

strong

Fit the shape operator itself, or its action after applying the reference mass inverse.

Enumerator
operator_action
right_preconditioned_action

CalibrationTarget

enum class serif::solver::preconditioner::strategies::surface::CalibrationTarget

strong

Choose the physical shape response, with or without approximate material relaxation.

Enumerator
surface_jacobian
material_schur

Function Documentation

try_fit_surface_h1_coefficients()

std::expected< SurfaceH1Fit, Failure > serif::solver::preconditioner::strategies::surface::try_fit_surface_h1_coefficients ( const SurfaceH1Moments & moments, FittedSurfaceH1 options = {} )

nodiscard

Solve the two signed constrained least-squares problems with positive mass and nonnegative stiffness.

Reject nonfinite moments before constructing the normalized Gram problem.

Compare a feasible positive backend operator against the signed physical target.

try_fit_surface_mass()

std::expected< SurfaceMassFit, Failure > serif::solver::preconditioner::strategies::surface::try_fit_surface_mass ( double numerator, double denominator, CalibrationObjective objective )

nodiscard

Solve either scalar calibration objective without discarding the physical sign.