ut3_zeros#

t3toolbox.backend.ut3_constructors.ut3_zeros(shape, tucker_ranks=None, tt_ranks=None, stack_shape=(), use_jax=False)#
def ut3_zeros(
        shape:        typ.Sequence[int],               # (N0,...,N(d-1))
        tucker_ranks=None,                             # int | len-d seq | (d,)+stack array;   None -> all 1
        tt_ranks=None,                                 # int | len-(d+1) seq | (d+1,)+stack array; None -> all 1
        stack_shape:  typ.Tuple[int, ...] = (),
        use_jax:      bool = False,                    # constructor: chooses the SUPERCORE type
) -> UT3Data:

Uniform Tucker tensor train of zeros. tucker_ranks/tt_ranks may vary per stack element.

Parameters:

  • shape (t3toolbox.backend.common.typ.Sequence[int])

  • stack_shape (t3toolbox.backend.common.typ.Tuple[int, Ellipsis])

  • use_jax (bool)

Return type:

UT3Data