BIHARMONIC OBSTACLE PROBLEM: GUARANTEED AND COMPUTABLE ERROR BOUNDS FOR APPROXIMATE SOLUTIONS
Статья
Computational Mathematics and Mathematical Physics.
Том 60.
2020.
С. 1823-1838
Abstract—: A new way of producing custom blocks for external electron beam therapy is described. The blocks are made of steel or lead grit uniformly distributed in epoxy resin. The proposed technique is user-friendly, inexpensive, and based on non-toxic materials. © 2020, Allerton Press, Inc.