@TechReport{	  it:2006-051,
  author	= {Erik B{\"a}ngtsson and Bj{\"o}rn Lund},
  title		= {A Comparison Between Two Solution Techniques to Solve the
		  Equations of Linear Isostasy},
  institution	= {Department of Information Technology, Uppsala University},
  department	= {Division of Scientific Computing},
  year		= {2006},
  number	= {2006-051},
  month		= dec,
  abstract	= {In this paper we compare two models to compute the
		  isostatic response of the Earths lithosphere to an external
		  load. The lithosphere is modeled as a linear elastic solid.
		  The two models differ in the mathematical formulation of
		  the problem, their applicability in the incompressible
		  limit, the choice of the finite elements used for
		  discretization, and the solution strategy for the arising
		  algebraic problem. The efficiency and accuracy of both
		  models are compared via extensive numerical experiments in
		  2D and 3D.}
}