个人简介
University education and employment: 1968-1973 :
Study of Mathematics at University of Leiden; 1973 doctoraalexamen (M.Sc.);
1974-77 Ph.D. student at University of Leiden; employed by the Dept of Mathematics, University of Leiden.
1977, June 15 Doctoral Degree at the University of Leiden; Advisor A.H.J.M.
van de Ven
1977-1978 Postdoc at Sonderforschungsbereich f¨ur Theoretische Mathematik,
University of Bonn, Germany
1978-1987 researcher at Department of Mathematics, University of Amsterdam
1987-2017 Professor of Algebra, Dept of Mathematics, University of Amsterdam
2017–present Emeritus Professor, Dept of Mathematics, University of Amsterdam
2013-present Visiting Professor, Yau Mathematical Sciences Center, Tsinghua
University, Beijing.
2017- present Visiting Profesor Luxembourg University.
Long term visits
Spring 1981 Universit`a di Pisa, Italia; 1983 Max-Planck-Institut, Bonn; Winter 1984 Mittag-Leffler Institute, Stockholm; Fall 1986 Mathematical Sciences Research Institute, Berkeley; Spring 1987 Harvard University; Spring 1988 Universit`a di Roma, I, Italia; Fall 1989 Universit¨at Mainz, Germany; Winter 1989 University of Kyoto, Japan 1998/99 Max-Planck-Institut,Bonn, Spring 1996 University of Kyoto, Japan; Spring 1999 University of Athens, Georgia, USA; Spring 2001 University of Tokyo, Japan; Summer 2006 University of Iraklion, Greece; Spring 2007 Mittag-Leffler Institute, Sweden; Autumn 2008 Scuola Normale, Pisa, Italy; Autumn 2012 MSC Tsinghua University, Beijing, China. Autumn 2014 MSC Tsinghua University, Beijing, China. Autumn 2015 YMSC Tsinghua University, Beijing, China. Autumn 2016 YMSC Tsinghua University, Beijing, China. Spring 2017 Max-Planck-Institute, Bonn, Germany. Autumn 2017 YMSC Tsinghua University, Beijing, China. Winter 2018 FRIAS, Freiburg University, Germany. Spring 2018 Luxembourg University, Autumn 2018 YMSC Tsinghua University, Beijing, China. Spring 2019 Luxembourg University, Autumn 2019 Tsinghua University, Beijing, China. Autumn 2021 Mittag-Leffler Institute, Djursholm, Sweden.
近期论文
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Title: The cycle class of the supersingular locus of principally polarized abelian varieties Authors: Gerard van der Geer and Shushi Harashita arXiv:2307.14393
Title: Effective divisors on projectivized Hodge bundles and modular forms Authors: Gerard van der Geer and Alexis Kouvidakis arXiv:2302.00329
Title: Modular forms via invariant theory Authors: Fabien Cléry and Gerard van der Geer arXiv:2211.05611?and?the published version
Title: Curves over finite fields and moduli spaces Author: Gerard van der Geer arXiv:2112.08704
Title: Generating Picard modular form by means of invariant theory Authors: Fabien Cléry and Gerard van der Geer arXiv:2110.00849?and?the published version
Title: Siegel modular forms of degree two and three and invariant theory Author: Gerard van der Geer arXiv:2102.02245?and?the published version
Title: Picard modular forms and the cohomology of local systems on a Picard modular surface. Authors: Jonas Bergstroem and Gerard van der Geer arXiv:2012.07673?and?the published version
Title: Modular forms of degree two and curves of genus two in characteristic two. Authors: Fabien Cléry and Gerard van der Geer arXiv:2003.00249?and?the published version
Title: Lifting Chern classes by means of Ekedahl-Oort strata Authors: Gerard van der Geer, Eduard Looijenga arXiv:1912.09687?and?the published version
Title: The ring of modular forms of degree two in characteristic three Author: Gerard van der Geer arXiv:1912.05161?and?the published version
Title: Concomitants of Ternary Quartics and Vector-valued Siegel and Teichmueller Modular Forms of Genus Three Authors: Fabien Cléry, Carel Faber and Gerard van der Geer arXiv:1908.04248?and?the published version
Title: Covariants of binary sextics and modular forms of degree 2 with character. Authors: Fabien Cléry, Carel Faber and Gerard van der Geer arXiv:1803.05624?and?the published version
Title: On vector-valued Siegel modular forms of degree 2 and weight (j,2). Authors: Fabien Cléry and Gerard van der Geer (with two appendices by Gaetan Chenevier) arXiv:1709.01748?and?the published version
Title: Covariants of binary sextics and vector-valued Siegel modular forms of genus 2 Authors: Fabien Cléry, Carel Faber and Gerard van der Geer arXiv:1606.07014?and?the published version
Title: Exploring modular forms and the cohomology of moduli spaces by counting points. Author: Gerard van der Geer arXiv:1604.02654?and?the published version
Title: A stratification on the moduli of K3 surfaces in positive characteristic Author: Gerard van der Geer arXiv:1511.00345?and?the published version
Title: Divisors on Hurwitz spaces. An appendix to 'The cycle classes of divisorial Maroni loci' Authors: Gerard van der Geer and Alexis Kouvidakis arXiv:1510.07401?and?the published version
Title: The cycle classes of divisorial Maroni loci Authors: Gerard van der Geer and Alexis Kouvidakis arXiv:1509.08598?and?the published version
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