UCSB Engineering

Shivkumar Chandrasekaran


Electrical & Computer Engineering

Shivkumar Chandrasekaran


Department of Electrical and Computer Engineering
University of California, Santa Barbara
Santa Barbara, CA 93106-9560

tel: (805) 893-7542
fax: (805) 893-3262

Research Description

His current research interests include the development of fast numerical algorithms for structured matrices. He is also interested in the development of new efficient and accurate higher-order schemes for the discretization and solution of differential and integral equations.

Research Groups


Shiv obtained his Ph.D. in numerical analysis at Yale University in 1994. After spending a year as a Visiting Instructor at the Mathematics department of North Carolina State University, Raleigh, he joined UCSB as an Assistant Professor. His early work included the development of first fast rank-revealing QR algorithm, and the first numerically stable inverse iteration algorithm for computing the eigendecomposition of symmetric matrices. Then, in joint work with Prof. Ali Sayed of UCLA, he developed the first numerically stable and fast algorithms for Toeplitz and other matrices with displacement structure. He also worked jointly with Professors Gu (UC Berkeley), Sayed and Golub (Stanford), in providing fast algorithms for finding globally optimal solutions to linear systems with bounded errors in the data. More recently, in joint work with Prof. Gu, Dewilde (TU Delft) and others, he has developed an entire family of fast numerical algorithms for matrices with HSS (Hierarchically Semi-Separable) structure. In collaboration with Prof. Mhaskar (Cal. State. Los Angeles), he developed the first numerically stable algorithm for constructing linear interpolatory polynomials that can work in arbitrary dimensions with arbitrary scattered data.