I. S. Litvinchev Operations Research Letters , v.27, N1 , 01.2000 , p. 29-37, language: английский  Аннотация Ellipsoids that contain all optimal primal solutions, those that contain all optimal dual slack solutions, and primal-dual ellipsoids are derived. They are independent of the algorithm used and have a smaller size than the Choi-Goldfarb ellipsoids  Ключевые слова linear programming, optimal solutions, primality-duality, ellipsoids containing solutions