11. Is the speed of light ( i . e . phase velocity ) in a medium with Laplace operator . 12. Several discretizations of the Laplace operator exist ( see Discrete Laplace operator ) for the different types of geometry representations. 13. Several discretizations of the Laplace operator exist ( see Discrete Laplace operator ) for the different types of geometry representations. 14. Where " ? " is a positive constant, and ? or " 2 denotes the Laplace operator . 15. The Laplace Beltrami operator is the differential operator that corresponds to Laplace operator for the Riemannian manifold " X ". 16. Which is to say that the operation of taking the Newtonian potential of a function is a partial inverse to the Laplace operator . 17. In the theory of partial differential equations, "'elliptic operators "'are differential operators that generalize the Laplace operator . 18. :The Unicode standard lists under U + 2206 : INCREMENT = Laplace operator , but makes no such reference under U + 0394. 19. When the manifold is Euclidean space, the Laplace operator is often denoted as " 2 and so Poisson's equation is frequently written as 20. The most studied isospectral problem in infinite dimensions is that of the Laplace operator on a domain in "'R "'2.
