ut3_tucker_weights_sharing_residual
===================================

.. py:function:: t3toolbox.backend.sharing.ut3_tucker_weights_sharing_residual(weights_data, sharing)

   .. code-block:: python

      def ut3_tucker_weights_sharing_residual(
              weights_data:   typ.Tuple[
                  NDArray,             # tucker_weight_supercore, shape=(d,)+stack+(n,)
                  NDArray,             # tt_weight_supercore,     shape=(d+1,)+stack+(r,)
                  typ.Tuple[NDArray, NDArray],  # (tucker_edge_mask, tt_edge_mask), HOST bool, static
              ],
              sharing:        typ.Sequence,   # len=d, static; one hashable group label per mode
      ) -> NDArray:  # shape = stack_shape; max relative MASKED Tucker-weight deviation per stack element


   The uniform twin of :py:func:`t3_tucker_weights_sharing_residual`: the comparison runs on the
   MASKED Tucker weight vectors (padding is don't-care), and unequal group rank masks raise
   (structural -- unequal ranks cannot carry one shared weight).