Instability
===============================

Instability of neutrino oscillation means the growth of the flavor conversions.

The caveat is that we do not require instability to have flavor conversions. The examples are MSW transitions which is linear.

.. admonition:: Where do we get the perturbations?
   :class: warning

   Initial or boundary conditions.


.. toctree::
   :maxdepth: 2

   bipolar.rst
   multi-zenith-angle.rst
   multi-azimuth-angle.rst