@article {Thompson:November 1996:0046-5755:159,
	author = "Thompson A.A.",
	author = "Thompson A.C.",
	title = "The Divergence Theorem and the Laplacian in Minkowski Space",
	journal = "Geometriae Dedicata",
	volume = "63",
	year = "November 1996",
	abstract = "<P>Let (X,B) be a Minkowski space (finite-dimensional Banach space) with unit ball B. Using a Minkowski definition of unit normal to a hypersurface, a Minkowski analogue of Euclidean divergence is defined. We show that the divergence theorem holds. Using the Minkowski divergence, a Minkowski Laplacian is defined. We prove that this Laplacian is a second-order, constant-coefficient, elliptic, differential operator. Furthermore, the symbol of this Laplacian is computed and used to associate a natural Euclidean structure with (X,B). </P>",
	pages = "159-170(12)",
	url = "http://www.ingentaconnect.com/content/klu/geom/1996/00000063/00000002/00091612"
}