  During the last decade, the relation between activity cycle periods with
stellar parameters has received special attention. The construction of reliable
registries of activity reveals that solar type stars exhibit activity cycles
with periods from few years to decades and, in same cases, long and short
activity cycles coexist suggesting that two dynamos could operate in these
stars. In particular, Epsilon Eridani is an active young K2V star (0.8 Gyr),
which exhibits a short and long-term chromospheric cycles of near 3 and 13-yr
periods. Additionally, between 1985 and 1992, the star went through a broad
activity minimum, similar to the solar Maunder Minimum-state. Motivated by
these results, we found in Epsilon Eridani a great opportunity to test the
dynamo theory. Based on the model developed in Sraibman & Minotti (2019), in
this work we built a non linear axisymmetric dynamo for Epsilon Eridani. The
time series of the simulated magnetic field components near the surface
integrated in all the stellar disc exhibits both the long and short-activity
cycles with periods similar to the ones detected from observations and also
time intervals of low activity which could be associated to the broad Minimun.
The short activity cycle associated to the magnetic reversal could be explained
by the differential rotation, while the long cycle is associated to the
meridional mass flows induced by the Lorentz force. In this way, we show that a
single non-linear dynamo model derived from first principles with accurate
stellar parameters could reproduce coexisting activity cycles.
