• Article  

      Spectral multipliers for Markov chains 

      Alexopoulos, Georgios K. (2004)
      We prove an analog to the classical Mikhlin-Hörmander multiplier theorem for Markov chains.
    • Article  

      Spectral multipliers on lie groups of polynomial growth 

      Alexopoulos, Georgios K. (1994)
      Let L be a left invariant sub-Laplacian on a connected Lie group G of polynomial volume growth, and let (Eγγ ≥ 0) be the spectral resolution of L and m a bounded Borel measurable function on [0, ∞). In this article we give ...