Vasant A. Ubhaya

发表

Characterizing best isotone approximations in Lp spaces, 1≤p<∞

Frank Deutsch, Vasant A. Ubhaya, 2016, J. Approx. Theory.

Integer Isotone Optimization

Ming-Hong Liu, Vasant A. Ubhaya, 1997, SIAM J. Optim..

Minimizing Separable Convex Functions Subject to Simple Chain Constraints

Michael J. Best, Nilotpal Chakravarti, Vasant A. Ubhaya, 1999, SIAM J. Optim..

Isotone functions, dual cones, and networks

Vasant A. Ubhaya, 2001, Appl. Math. Lett..

Lipschitzian Operators in Best Approximation by Bounded or Continuous Functions

Vasant A. Ubhaya, 2009, Encyclopedia of Optimization.

Regression by Special Functions: Algorithms and Complexity

Vasant A. Ubhaya, 2009, Encyclopedia of Optimization.

An O(n) algorithm for weighted least squares regression by integer quasi-convex and unimodal or umbrella functions

Ming-Hong Liu, Vasant A. Ubhaya, 2009, Comput. Math. Appl..

Best approximation by integer-valued functions

Vasant A. Ubhaya, 2005, Appl. Math. Lett..

Duality and Lipschitzian selections in best approximation from nonconvex cones

Vasant A. Ubhaya, V. Ubhaya, 1991 .

Quasi-convex optimization

Vasant A. Ubhaya, V. Ubhaya, 1986 .

Lipschitzian selections in best approximation by continuous functions

Vasant A. Ubhaya, V. Ubhaya, 1990 .

Lipschitzian selections in approximation from nonconvex sets of bounded functions

Vasant A. Ubhaya, 1989 .

Best piecewise monotone uniform approximation

Vasant A. Ubhaya, Yuesheng Xu, Yuesheng Xu, 1990 .

An O(n) algorithm for least squares quasi-convex approximation

Vasant A. Ubhaya, V. Ubhaya, 1987 .

Constrained best approximation in Hilbert space III. Applications ton-convex functions

Frank Deutsch, Joseph D. Ward, Vasant A. Ubhaya, 1996 .