Cosmological models with negative constant deceleration parameter in   Lyra geometry
  Bermann [ Nuovo Cimento B (1983), 74, 182 ] presented a law of variation of Hubble parameter that yields constant deceleration parameter models of the Universe. In this paper, we study some cosmological models with negative constant deceleration parameter within the framework of Lyra geometry. 
F. Rahaman, N. Begum, G. Bag, B. C. Bhui