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  • On free group generated by two Heisenberg translations 
    KALANE, SAGAR B.; Tiwari, Devendra (Springer Nature, 2022-06)
    Let A and B be two Heisenberg translations of PU(2,1). In this paper, we will discuss the groups ⟨A,B⟩ generated by two non-commuting Heisenberg translations and determine when they are free. The main result of the paper ...