Coarse spaces over the ages
arXiv:0911.5725 · doi:10.1007/978-3-642-11304-8_23
Abstract
The objective of this paper is to explain the principles of the design of a coarse space in a simplified way and by pictures. The focus is on ideas rather than on a more historically complete presentation. Also, space limitation does not allow even to mention many important methods and papers that should be rightfully included.
Minor changes. 8 pages, 4 figures, to appear in DD19 proceedings