Invited Speakers: \vskip .1 in \noindent Jeff Cheeger (New York University) \noindent Zhiqin Lu (UCI) \noindent Bill Minicozzi (Johns Hopkins University) \noindent Ngaiming Mok (University of Hong Kong) \noindent Mei-Chi Shaw (University of Notre Dame) \noindent Brian White (Stanford University) \vskip .1 in \noindent The 12th SCGAS will be held at the Department of Mathematics of University of California at San Diego on Saturday, February 19, 2005 and Sunday, February 20, 2005. \vskip .1 in \noindent Registration starts at 9 am Saturday morning (on the 4th floor of AP&M.) The first talk will be at 10:00am and the last talk will be right after lunch of Sunday, to allow for travel. \vskip .1 in \noindent Graduate students, fresh Ph.D.s and minorities are especially welcome to join our annual seminar. Partial financial support is available. \vskip .1 in \noindent The Seminar is supported by the NSF.