Large-scale dynamics of neutron stars

In order to correctly interpret observations of neutron stars (NSs) and constrain the properties of
superdense matter, it is necessary to have an adequate theory describing the large-scale NS
dynamics. In the first part of the talk I will discuss the key ingredient of such a theory, the
superfluidity of nucleons in the inner layers of NSs, as well as the corresponding
(magneto)hydrodynamic equations. In the second part of the talk, I will briefly review several
possible methods for studying the internal structure of NSs and discuss some problems and
advances associated with these methods.