Mathematical Sciences: Manifolds of Nonpositive Curvature   and Rigidity Theory
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{'SignBlockName': 'James Glazebrook', 'PO_EMAI': None, 'PO_PHON': None}
Ralf Spatzier will carry out research on the interface of                  geometry and dynamical systems. A central theme of this project                 is the study of rigidity.                                                            He will study rigidity properties of spaces of nonpositive                 curvature and actions of semisimple groups and their lattices.                  This involves problems from geometry as well as ergodic theory                  and group theory. The problems fall into three categories: spaces               of higher rank, rank one manifolds and rigidity of group actions.
{'FirstName': 'Ralf', 'LastName': 'Spatzier', 'PI_MID_INIT': 'J', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Ralf J Spatzier', 'EmailAddress': 'spatzier@umich.edu', 'NSF_ID': '000236082', 'StartDate': '06/15/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
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{'Code': '1265', 'Text': 'GEOMETRIC ANALYSIS'}
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