shared

t3toolbox.shared_geometry.shared(base, sharing)

def shared(
        base,                       # MANIFOLD / COREWISE / UNIFORM_MANIFOLD / UNIFORM_COREWISE
        sharing:    typ.Sequence,   # len=d; one hashable group label per mode
) -> SharedGeometry:

The shared (SF-T3) geometry over a base geometry: optimize with the Tucker factors tied within each sharing group. Equal wrappers compare equal (a stable jit aux). Uniform bases take/return the uniform objects (UniformTuckerTensorTrain / UT3Frame / UT3Tangent) and run the packed compile-once fitting path.

Parameters:

sharing (t3toolbox.backend.common.typ.Sequence)

Return type:

SharedGeometry