@article {Olaf:May :1019-7168:353,
	author = "Olaf Hansen",
	title = "A fast collocation method for the radiosity equation, based on the hierarchical algorithm of Hanrahan and Salzman: the 1d case",
	journal = "Advances in Computational Mathematics",
	volume = "22",
	number = "4",
	year = "May ",
	abstract = "In this paper we study a collocation method with piecewise constant trial functions for the solution of the planar radiosity equation. The matrix of the collocation method is approximated by a method which was developed by Hanrahan et al. [9,10]. We prove that the modified collocation method results in a reduction of work while the order of convergence stays the same. Numerical examples demonstrate the theoretical results.",
	pages = "353-375",
	url = "http://www.ingentaconnect.com/content/klu/acom/2005/00000022/00000004/05253962",
	doi = "doi:10.1007/s10444-003-3962-7",
	keyword = "radiosity equation, collocation method, hierarchical method"
}