T3Frame.minimal_ranks
=====================

.. py:method:: t3toolbox.frame_variations_format.T3Frame.minimal_ranks()

   .. code-block:: python

      def minimal_ranks(self) -> typ.Tuple[typ.Tuple[int, ...], typ.Tuple[int, ...]]:


   Structural minimal ranks ``(min_tucker_ranks, min_tt_ranks)`` for this frame's shape/ranks.

   **Structural**: computed from the rank tuples + shape, not the numerical core values (see
   :py:meth:`TuckerTensorTrain.get_minimal_ranks`).