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We propose the model describing the observed multiple fast radio bursts dueto the close encounters and collisions of neutron stars in the central clustersof the evolved galactic nuclei. The subsystem of neutron star cluster mayoriginate in the dense galactic nucleus evolutionary in the combined processesof stellar and dynamical evolution. The neutron stars in the compact clustercan produce the short living binaries with the highly eccentric orbits, andfinally collide after several orbital revolutions. Fast radio bursts may beproduced during the close periastron approach and at the process of the finalbinary merging. In the sufficiently dense star cluster the neutron starscollisions can be very frequent. Therefore, this model can explain in principlethe observed recurrent (multiple) fast radio bursts, analogous to the observedones from the source FRB 121102. Among the possible observational signatures ofthe proposed model may be the registration of the gravitational wave bursts bythe laser interferometers LIGO/VIRGO or by the next generation of gravitationalwave detectors.

Recurrent fast radio bursts from collisions of neutron stars in the evolved stellar clusters