Professor School of Mathematics University of Minnesota 206 Church Street SE Minneapolis, MN 55455 USA (Phone) 612-625-4557 (fax) 612-626-xxxx (email) hejhal @math.umn.edu |
Professor Emeritus (from 1 Jan 2013) Department of Mathematics Uppsala University Box 480 S-75106 Uppsala, SWEDEN (Math Dept Office) 46-18-471-3200 or 6279 (fax) 46-18-471-3201 (email) hejhal@math.uu.se [when in Sweden] |
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Research Interests:
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