Mathematical Sciences: Automorphisms of Free Groups
{'Code': '03040200', 'Directorate': {'LongName': 'Direct For Mathematical & Physical Scien'}, 'Division': {'LongName': 'Division Of Mathematical Sciences'}}
{'SignBlockName': 'Ralph M. Krause'}
This award supplements support provided for Vogtmann's                     research under DMS-8702070 with K. S. Brown as principal                        investigator.  It will enable her to take part in the special                   year in combinatorial group theory at the Mathematical Sciences                 Research Institute, Berkeley, California, during the spring of                  1989.                                                                                The general area of research is in topological and geometric               methods in group theory.  The specific problems concern various                 subgroups of the group of outer automorphisms of a finitely                     generated free group, and related groups.  The idea is to adapt                 the very beautiful and powerful techniques used in the study of                 arithmetic groups to the study of these groups.  One basic tool                 is the action of the group of outer automorphisms of a free group               on a contractible space developed by the principal investigator                 and Marc Culler.
{'FirstName': 'Karen', 'LastName': 'Vogtmann', 'EmailAddress': 'vogtmann@math.cornell.edu', 'StartDate': '10/01/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Cornell University', 'CityName': 'Ithaca', 'ZipCode': '148502820', 'PhoneNumber': '6072555014', 'StreetAddress': '373 Pine Tree Road', 'CountryName': 'United States', 'StateName': 'New York', 'StateCode': 'NY'}
{'Code': '1260', 'Text': 'INFRASTRUCTURE PROGRAM'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1988&All=true', 'xml': '8805373.xml'}