BEJ231 10.3150/09-BEJ231 BEJ0808-005 37 5 Varying-Coefficient Functional Linear Regression Yichao Wu North Carolina State University wu@stat.ncsu.edu Jianqing Fan Princeton University jqfan@princeton.edu Hans-Georg Mueller University of California, Davis mueller@wald.ucdavis.edu http://www.e-publications.org/ims/submission/index.php/BEJ/user/submissionFile/3757?confirm=2641e22e