Recent content by jssdenton

  1. J

    Numerically solving system of four PDEs

    I think I see what you are saying, but aren't there two sets of spatial coordinates in 2D--the x,y layer for the first system, and the x,y layer for the second system? I am not sure how to formulate the D[] functions, Laplacian, or initial/boundary conditions with this in mind. I had tried to...
  2. J

    Numerically solving system of four PDEs

    Sure. Here is a link to a pdf of the article. http://hopf.chem.brandeis.edu/members_content/yanglingfa/paper/t2.pdf
  3. J

    Numerically solving system of four PDEs

    As I understand it, there should be 4 equations, with x_1, y_1, x_2, y_2 . I was using x, y, d, and c to represent those functions because I was worried about bungling subscripts.
  4. J

    Numerically solving system of four PDEs

    Hi Forum, I'm trying to use Mathematica to graphically explore a system of four PDEs, as defined in Yang et al. (2002). Spatial Resonances and Superposition Patterns in a Reaction-Diffusion Model with Interacting Turing Modes. Physical Review Letters 88(20). The equations are: \frac{\partial...
  5. J

    Constraints on matrix-variate normal distributions

    Hello, all. I'm wondering about matrix-variate normal distributions. I know they normally assume an n x p random matrix, X, and associated row and column covariance matrices Omega and Sigma, but I'm wondering how the probability density function changes if X is comprised of a square...
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