Tzanio V. Kolev
, Panayot S. Vassilevski:
AMG by element agglomeration and constrained energy minimization interpolation. Numer. Linear Algebra Appl. 13(9): 771-788 (2006)

AMG by element agglomeration and constrained energy minimization interpolation. Numer. Linear Algebra Appl. 13(9): 771-788 (2006)