Publications 2008 The Metric Nearness Problem (pdf , software ) J. Brickell, I. Dhillon, S. Sra, J. Tropp.SIAM Journal of Matrix Analysis and Applications (SIMAX) 30(1), pp. 375-396, April 2008.Constructing Packings in Grassmannian Manifolds via Alternating Projections (pdf , software ) I. Dhillon, R. Jr., T. Strohmer, J. Tropp.Experimental Mathematics 17(1), pp. 9-35, 2008.2007 Matrix Nearness Problems with Bregman Divergences (pdf , software ) I. Dhillon, J. Tropp.SIAM Journal of Matrix Analysis and Applications (SIMAX) 29(4), pp. 1120-1146, November 2007.On the Existence of Equiangular Tight Frames (pdf , software ) M. Sustik, J. Tropp, I. Dhillon, R. Jr..Linear Algebra and its Applications 426(2), pp. 619-635, October 2007. (A previous version appears as UTCS Technical Report #TR-04-32, August 2004.)2005 Generalized Finite Algorithms for Constructing Hermitian Matrices with Prescribed Diagonal and Spectrum (pdf , software ) I. Dhillon, R. Jr., M. Sustik, J. Tropp.SIAM Journal of Matrix Analysis and Applications (SIMAX) 27(1), pp. 61-71, June 2005.Designing Structured Tight Frames Via an Alternating Projection Method (pdf , software ) J. Tropp, I. Dhillon, R. Jr., T. Strohmer.IEEE Transactions on Information Theory 51(1), pp. 188-209, January 2005.2004 Finite-Step Algorithms for Constructing Optimal CDMA Signature Sequences (pdf , software ) J. Tropp, I. Dhillon, R. Jr..IEEE Transactions on Information Theory 50(11), pp. 2916-2921, November 2004.Construction of Equiangular Signatures for Synchronous CDMA Systems (pdf , software ) R. Jr., J. Tropp, I. Dhillon, T. Strohmer.IEEE International Symposium on Spread Spectrum Techniques and Applications, , August 2004.Optimal CDMA Signatures: A Finite-Step Approach (pdf , software ) J. Tropp, I. Dhillon, R. Jr..IEEE International Symposium on Spread Spectrum Techniques and Applications, , August 2004.2003