Browsing by Subject "finite difference"

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    • Positive polynomials on riesz spaces 

      Cruickshank, James; Loane, John; Ryan, Raymond A. (Springer Nature, 2016-08-24)
      We prove some properties of positive polynomial mappings between Riesz spaces, using finite difference calculus. We establish the polynomial analogue of the classical result that positive, additive mappings are linear. And ...

    • A two-weight scheme for a time-dependent advection-diffusion problem 

      Chadha, Naresh M.; Madden, Niall (2011)
      We consider a family of two-weight finite difference schemes for a time-dependent advection-diffusion problem. For a given uniform grid-spacing in time and space, and for a fixed value of advection and diffusion parameters, ...