We present a multifrequency radio continuum study of seven giant low surface brightness ( GLSB ) galaxies using the Giant Metrewave Radio Telescope ( GMRT ) .
GLSB galaxies are optically faint , dark-matter dominated systems that are poorly evolved and have large H i gas disks .
Our sample consists of GLSB galaxies that show signatures of nuclear activity in their optical spectra .
We detect radio emission from the nuclei of all the seven galaxies .
Five galaxies have nuclear spectral indices that range from 0.12 to -0.44 and appear to be core-dominated ; the two galaxies have a steeper spectrum .
Two of the galaxies , UGC 2936 and UGC 4422 show significant radio emission from their disks .
In our 610 MHz observations of UGC 6614 , we detect radio lobes associated with the radio-loud active galactic nucleus ( AGN ) .
The lobes have a spectral index of -1.06 \pm 0.12 .
The star formation rates estimated from the radio emission , for the entire sample range from 0.15 to 3.6 M _ { \odot } yr ^ { -1 } .
We compare the radio images with the near-ultraviolet ( NUV ) images from GALEX and near-infrared ( NIR ) images from 2MASS .
The galaxies present a diversity of relative NUV , NIR and radio emission , supporting an episodic star formation scenario for these galaxies .
Four galaxies are classified members of groups and one is classified as isolated .
Our multiwavlength study of this sample suggests that the environment plays an important role in the evolution of these galaxies .