Acknowledgments
- The work of Zaiwen Wen was supported in part by in part by NSF DMS-0439872 through UCLA IPAM.
- The work of W. Yin was supported in part by NSF CAREER Award DMS-07-48839, ONR Grant N00014-08-1-1101, the U. S. ARL/ARO grant W911NF-09-1-0383, and an Alfred P. Sloan Research Fellowship.
- The work of Yuan Shen was supported by the Chinese Scholarship Council during this visit to Rice University.
- The work of Yin Zhang was supported in part by NSF DMS-0811188 and ONR N00014-08-1-1101.