.. _MPI:          https://www.mpi-forum.org

.. _PETSc:        https://petsc.org

.. _SLEPc:        https://slepc.upv.es

.. _Python:       https://www.python.org

.. _NumPy:        https://numpy.org

.. _mpi4py:       https://github.com/mpi4py/mpi4py

.. _slepc4py:     https://gitlab.com/slepc/slepc