"We make fun of Lutherans for their blandness, their excessive calm, their fear of giving offense, their constant guilt that burns like a pilot light, their lack of speed and also for their secret fondness of macaroni and cheese." Garrison Keillor

Biography

I was born in Niedersachsen of German, Baltic-German, and Estonian ancestry.

I have lived in

Gladebeck (now part of Hardegsen),

Addis Abeba, Ethiopia at the Horn of Africa (1969–1975),

Berlin (1975–1982),

Silver Spring in the DC area (1982–1984),

Pasadena, CA (1984–1989),

Somerville in the Boston area (since 1989),

Paris (1990),

Zürich (1991 and 1996–1997).

Marseille (2013–2014).

Abitur 1979 Askanische Oberschule Berlin-Tempelhof;
Vordiplom Physik 1981 Technische Universität Berlin;
Fulbright Scholarship 1982-3;
Master of Arts, Mathematics 1984 University of Maryland, College Park;
Doctor of Philosophy, Mathematics 1989 California Institute of Technology.
Assistant Professor in Mathematics at Tufts University 1989-1996,
Associate Professor 1996–2002,
Professor since 2002.
Department Chair 2004–2005, 2010–2013.
Associate Provost since 2014.

Adjunct appointment at

The Pennsylvania State University
(Associate Member of the Center for Dynamical Systems since 1998).

Visiting positions at

Institut des Hautes Etudes Scientifiques, Bures-sur-Yvette near Paris (1990);
Eidgenössische Technische Hochschule, Zürich in Switzerland (1991 and 1996-7).
Institut de Recherche Mathématique Avancé (IRMA), Université Louis Pasteur, Strasbourg, France (2004)
Centre International de Rencontres Mathématiques, Marseille, France (2013–2014)
Tokyo University, Japan (2014)

Guest at

Universität Göttingen,
The Mathematical Sciences Research Institute Berkeley,
shorter visits and lectures at numerous institutions in the US, Europe and the Americas.

My books and other publications are listed on a separate page.

Hobbies: I have been singing in the Choirs of Trinity Church in Boston since 2000. Earlier I sang for several years with the Dedham Choral Society. I have been involved in choral music since 1974, with much of the formative time spent with the Berliner Konzert Chor, and I have sung in Czech, English, French, German, Hebrew, Italian, Japanese, Latin, Russian, Slavonic, Spanish, Swahili, Swedish, Zulu, under Jonathan Barnhart, Donald Caldwell, Andrew Clark, William Hall, Walter Herbig, Brian Jones, Michael Kleinschmidt, John Rutter, Murray Sidlin, Paul Travers, Richard Webster, Fritz Weisse, John Willcocks, in Addis Abeba, Baltimore, Berlin (Philharmonie, Staatliche Schauspielbühnen, countless churches), Boston (Symphony Hall, Jordan Hall, Trinity Church, Old South Church), Buenos Aires (Teatro Colon), Caracas, Curitiba/Brazil, Dedham, MA (St. Mary's Church), Jerusalem, Lima, Long Beach (Long Beach Opera), Los Angeles (Dorothy Chandler Pavillion), Medford (Goddard Chapel, Cohen Auditorium), Mexico City, Pasadena (Pasadena Civic Auditorium, Pasadena Presbyterian Church and others), Porto Alegre/Brazil, Rio de Janeiro, Santiago de Chile, São Paolo, Tel Aviv, and Washington (Kennedy Center, Wolf Trap). In addition there were televised performances in California, Germany and Massachusetts.

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