graphlow.core.MeshGeometry.isoAM_with_neumann

MeshGeometry.isoAM_with_neumann(with_moment_matrix: bool = True, consider_volume: bool = False, normal_weight: float = 10.0, normal_interp_mode: Literal['mean', 'conservative'] = 'conservative', eps: float = 1e-12) → tuple[T, T, T | None]

Compute IsoAM with a Neumann boundary model.

Parameters:

with_moment_matrixbool, default=True

If True, also returns the inverse moment matrix.

consider_volumebool, default=False

If True, includes volume-related terms (for volume meshes).

normal_weightfloat, default=10.0

Weight for the Neumann boundary normal term.

normal_interp_mode{“mean”, “conservative”}, default=”conservative”

Mode used to interpolate normals.

epsfloat, default=1e-12

Numerical epsilon used for normalization.

Returns:

isoamT

IsoAM operator of shape (dims, n_points, n_points).

weighted_normalsT

Weighted normals for Neumann boundary condition, shape (n_points, dims).

moment_invT or None

Inverse moment matrix of shape (n_points, dims, dims) if requested; otherwise None.