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Talks

  1. 07.11.2017, University of Warwick:
    tba
    [Warwick Algebraic Geometry Seminar]
  2. 12.07.2017, Humboldt-Universität Berlin:
    Enriques surfaces with maximal root types: moduli and good reduction
    [Conference Higgs Bundles, K3 Surfaces and Moduli]
  3. 22.06.2017, Uniwersytetu Jagiellońskiego, Krakow:
    Nodal curves and Enriques surfaces
  4. 02.06.2017, Universität Göttingen:
    Elliptic surfaces in geometry and arithmetic
    [Göttingen-Hannover Number Theory Workshop]
  5. 30.03.2017, Haeundae, Korea:
    Configurations of nodal curves on Enriques surfaces
    [Algebraic Geometry Conference (Keum60)]
  6. 13.12.2016, University of Tokyo:
    Singular K3 surfaces of class number 2
    [Conference Arithmetic and Algebraic Geometry]
  7. 04.11.2016, Albert-Ludwigs-Universität Freiburg:
    Elliptic surfaces
  8. 14.06.2016, Bedlewo:
    Gorenstein Q_l-cohomology projective planes
    [Conference: Varieties with trivial canonical bundles]
  9. 17.02.2016, Universität Saarbrücken:
    Geraden auf glatten Quartiken in IP^3
  10. 11.02.2016, FU Berlin:
    Lines on smooth quartics in IP^3
    [Arithmetic Geometry Seminar]
  11. 04.02.2016, Universität Bielefeld:
    Eine glatte Quartik in IP^3 mit 60 Geraden und S_5-Symmetrie
  12. 27.01.2016, Tokyo University:
    Gorenstein Q_l-cohomology fake projective planes
    [Conference Algebraic and Arithmetic Geometry 2016]
  13. 17.12.2015, Gutenberg-Universität Mainz:
    Moduli of Gorenstein Q-homology fake projective planes
    [SFB-Kolloquium]
  14. 02.12.2015, University of Cambridge:
    Moduli of Gorenstein Q-homology fake projective planes
    [Algebraic Geometry Seminar]
  15. 19.11.2015, KIAS, Seoul:
    Moduli of Gorenstein Q-homology fake projective planes
    [Conference on K3 surfaces and related topics]
  16. 19.10.2015, ICERM, Providence:
    Modularity of K3 surfaces and Calabi-Yau threefolds
    [Workshop Explicit methods for modularity of K3 surfaces and other higher weight motives]
  17. 29.01.2015, University of Tokyo:
    Profile of some beautiful K3 surfaces
    [Conference Algebraic and Arithmetic Geometry 2015]
  18. 12.11.2014, Universität Bielefeld:
    Picard numbers — K3 surfaces and beyond
  19. 2.07.2014, Universität Leipzig:
    K3 surfaces
    [Felix Klein Kolloquium]
  20. 7.05.2014, Schiermonnikoog:
    The maximum number of lines on smooth quartic surfaces
    [Conference on K3 surfaces and their moduli]
  21. 25.03.2014, Leibniz Universität Hannover:
    From modularity to Maschke's octic and back
    [Workshop Experimental Methods in Computational Algebra]
  22. 20.03.2014, LMU München:
    The maximum number of lines on smooth quartic surfaces
    [Workshop Geometry and Arithmetic of Surfaces]
  23. 17.02.2014, Universität Osnabrück:
    64 lines on smooth quartic surfaces
    [Kolloquium]
  24. 27.01.2014, Tokyo University:
    64 lines on smooth quartic surfaces
    [Arithmetic and Algebraic Geometry 2014]
  25. 13.11.2013, Fields Institute Toronto:
    64 lines on smooth quartic surfaces
    [Thematic Program on Calabi-Yau Varieties]
  26. 12.11.2013, Fields Institute Toronto:
    Picard numbers of quintic surfaces
    [Thematic Program on Calabi-Yau Varieties]
  27. 29.01.2013, Tokyo University:
    Picard numbers of quintic surfaces
    [Arithmetic and Algebraic Geometry 2013]
  28. 14.11.2012, Universität Rostock:
    Arithmetik von K3 Flächen
    [Mathematisches Kolloquium]
  29. 9.11.2012, Universita degli studi di Milano:
    Picard numbers of quintic surfaces
  30. 12.09.2012, Leibniz Universität Hannover:
    Picard-Zahlen von Quintiken
  31. 30.06.2012, Krakow:
    Picard numbers of quintic surfaces
    [ECM satellite conference "Algebraic and Arithmetic Geometry"]
  32. 30.05.2012, KU Leuven:
    Arithmetic of K3 surfaces
  33. 16.04.2012, Universität Zürich:
    Arithmetic of quintic surfaces
    [Oberseminar Algebraische Geometrie]
  34. 16.01.2012, Institut für experimentelle Mathematik, Essen:
    Die Modularität von Maschkes Oktik und Calabi-Yau-Varietät
  35. 16.12.2011, Rijksuniversiteit Groningen:
    Arithmetic of quintic surfaces
    [Intercity Number Theory Seminar]
  36. 08.12.2011, Freie Universität Berlin:
    Arithmetik algebraischer Flächen
  37. 06.12.2011, Humboldt Universität Berlin:
    Modularity of Maschke's octic and Calabi-Yau threefold
    [Forschungsseminar "Arithmetische Geometrie"]
  38. 01.12.2011, Universität Augsburg:
    Arithmetik von K3-Flächen
    [Oberseminar]
  39. 21.11.2011, Goethe-Universität Frankfurt
    Arithmetik von Quintiken
    [Kolloquium zur algebraischen Geometrie]
  40. 10.10.2011, CIRM, Luminy:
    Shimura varieties for abelian fourfolds with an automorphism of order five
    [Conference on Moduli spaces and automorphic forms ]
  41. 06.09.2011, Carl von Ossietzky Universität, Oldenburg:
    Sandwich-Theoreme für Shioda-Inose Strukturen
    [Oberseminar]
  42. 16./17.08.2011, Fields Institute Toronto:
    Arithmetic of K3 surfaces
    [Workshop on Arithmetic and Geometry of K3 surfaces and Calabi-Yau threefolds]
  43. 15.07.2011, Institut für experimentelle Mathematik, Essen:
    Arithmetik von Quintiken
  44. 08.07.2011, Universität Ulm:
    Arithmetik algebraischer Flächen
  45. 01.07.2011, Ruprecht-Karls-Universität Heidelberg:
    Shimura varieties for abelian fourfolds with an automorphism of order five
    [Hauptseminar Algebra und Zahlentheorie]
  46. 14.04.2011, Universität Bonn/MPI:
    Shimura varieties for abelian fourfolds with an automorphism of order five
    [Seminar Algebraic Geometry]
  47. 31.03.2011, Uniwersytet Pedagogiczny, Krakow:
    Lines on Fermat surfaces
  48. 28.03.2011, Uniwersytetu Jagiellońskiego, Krakow:
    Shimura varieties for abelian fourfolds with an automorphism of order five
  49. 14.03.2011, Oslo University:
    Oversiktsforedrag over modularitet til Calabi-Yau variteter
    [Seminar in Algebra and Algebraic geometry]
  50. 24.11.2010, Nagoya University:
    Lines on Fermat surfaces
    [Workshop Lattices, Reflection groups and Algebraic Geometry]
  51. 18.11.2010, Technische Universität Darmstadt:
    Arithmetik und Geometrie algebraischer Flächen
  52. 29.10.2010, Lorentz Center, Leiden:
    Shimura varieties for abelian fourfolds with an automorphism of order five
    [Conference Arithmetic of Surfaces]
  53. 30.09.2010, Copenhagen University:
    Lifts of projective congruence groups
  54. 29.09.2010, Copenhagen University:
    Noncongruence groups and modular forms
  55. 07.09.2010, Levico Terme, Italy:
    Arithmetic of singular Enriques surfaces
    [Conference Perspectives on Algebraic Varieties]
  56. 16.08.2010, Universität Duisburg-Essen:
    Arithmetic of algebraic surfaces
  57. 01.06.2010, Universita' degli Studi di Milano:
    Arithmetic of Enriques surfaces
    [Algebraic Geometry Seminar Milano]
  58. 21.05.2010, Goethe-Universität Frankfurt
    Modulformen und K3-Flächen
  59. 11.05.2010, Leibniz Universität Hannover
    Modularität und K3-Flächen
    [Antrittsvorlesung im Mathematisch-Physikalischen Kolloquium]
  60. 23.04.2010, Utrecht University:
    Arithmetic of K3 surfaces
    [Dutch Mathematical Congress]
  61. 08.03.2010, Hausdorff Institute, Bonn:
    Elliptic surfaces
    [Seminar: Algebra and Number Theory]
  62. 17.02.2010, Tokyo University:
    Non-liftable Calabi-Yau spaces
    [Algebraic Geometry in characteristic p and related topics]
  63. 15.02.2010, Nagoya University:
    Enriques surfaces and jacobian elliptic K3 surfaces
    [Algebraic Geometry Seminar]
  64. 13.01.2010, Carl von Ossietzky Universität, Oldenburg:
    K3-Flächen und Modulformen
    [Colloquium]
  65. 21.12.2009, Leibniz Universität Hannover:
    Calabi-Yau threefolds: fiber products of rational elliptic surfaces
    [Colloquium of the DFG graduate school 1463]
  66. 20.11.2009, Freie Universität, Berlin:
    Arithmetic of Enriques surfaces
    [NoGAGS]
  67. 17.11.2009, Universität Hamburg:
    K3 surfaces and modular forms
    [Colloquium for pure mathematics]
  68. 30.09.2009, Harvard University:
    Arithmetic of Enriques surfaces
    [Number Theory Seminar]
  69. 10.09.2009, Chuo University, Tokyo:
    Lines on Fermat surfaces
  70. 02.09.2009, Rikkyo University, Tokyo:
    Arithmetic of Enriques surfaces
    [Workshop on K3, Enriques and Special Surfaces]
  71. 01.09.2009, Tokyo University:
    Arithmetic of K3 surfaces
    [Algebraic Geometry Seminar]
  72. 12.06.2009, Heinrich-Heine-Universität, Düsseldorf:
    Arithmetik und Geometrie von K3 Flächen
  73. 17.04.2009, Utrecht:
    K3 surfaces and modular forms
    [Joint AKLS - InterCity seminar on modular forms in Utrecht]
  74. 19.01.2009, Jussieu, Paris:
    K3 surfaces and modular forms
    [Seminaire de theorie des nombres de Chevaleret]
  75. 01.12.2008, Banff, Canada:
    K3 surfaces and modular forms
    [Arithmetic of K3 surfaces]
  76. 12.11.2008, KIAS, Seoul:
    K3 surfaces and modular forms
    [Algebraic Geometry in East Asia]
  77. 06.11.2008, Nagoya University:
    Neron-Severi groups of surfaces in characteristic 0 and p
    [Algebraic Geometry in Positive Characteristics and Related Topics]
  78. 31.10.2008, Hiroshima University:
    K3 surfaces and modular forms
    [Algebra seminar]
  79. 14.10.2008, Humboldt Universität, Berlin:
    K3 surfaces and modular forms
    [Research seminar Algebraic Geometry]
  80. 10.10.2008, University of Copenhagen:
    Surfaces with maximal Picard number
    [KU Number Theory Seminar]
  81. 23.09.2008, Leibniz Universität Hannover:
    Arithmetik von K3 Flächen
  82. 15.09.2008, Albert-Ludwigs Universität Freiburg:
    K3-Flächen und Modulformen
  83. 12.06.2008, Leibniz Universität Hannover:
    K3-Flächen vom Picard Rang 20
    [Research Seminar Algebraic and Arithmetic Geometry]
  84. 02.06.2008, Uniwersytetu Jagiellońskiego, Krakow:
    K3 surfaces and modular forms
    [Seminar on algebraic and analytic geometry]
  85. 18.03.2008, Queen's University, Kingston, ON:
    K3 surfaces of Picard rank 20
    [Queen's Number Theory Seminar]
  86. 17.03.2008, Queen's University, Kingston, ON:
    Lines on Fermat surfaces
    [Queen's Algebraic Geometry Seminar]
  87. 15.03.2008, Fields Institute, Toronto, ON:
    K3 surfaces and modular forms
    [Workshop on algebraic varieties]
  88. 17.01.2008, Universität Duisburg-Essen:
    K3 surfaces and modular forms
    [Oberseminar Algebraische Geometrie Duisburg-Essen-Düsseldorf]
  89. 12.01.2008, Courant Research Center Göttingen:
    K3 surfaces and modular forms
    [Courant-Colloquium]
  90. 10.01.2008, Leibniz Universität Hannover:
    K3-Flächen und Modulformen
    [Research Seminar Algebraic and Arithmetic Geometry]
  91. 18.12.2007, University of Copenhagen:
    K3 surfaces and modular forms
    [Copenhagen Mathematics Colloquium]
  92. 03.12.2007, MIT, Cambridge, MA:
    K3 surfaces of Picard rank 20 over Q
    [MIT STAGE]
  93. 13.11.2007, MIT, Cambridge, MA:
    Calabi-Yau threefolds as fibre products of rational elliptic surfaces
    [Harvard/MIT algebraic geometry seminar]
  94. 30.10.2007, Brandeis University, Waltham, MA:
    Singular K3 surfaces
    [Everytopic Seminar]
  95. 13.09.2007, University of Texas, Austin, TX:
    Singular K3 surfaces
    [University of Texas - algebra, number theory and combinatorics seminar]
  96. 06.09.2007, Rikkyo University, Tokyo:
    Singular K3 surfaces
  97. 29.08.2007, Nagoya University:
    Singular K3 surfaces and modular forms
    [Conference on Birational Automorphisms of Compact Complex Manifold and Dynamical Systems]
  98. 16.08.2007, Queen's University, Kingston, ON:
    Singular K3 surfaces and modular forms
  99. 27.03.2007, Amherst College:
    Singular K3 surfaces
    [Amherst Five College Number Theory Seminar]
  100. 26.02.2007, Boston University:
    Singular K3 surfaces
    [Boston University Algebra Seminar]
  101. 08.02.2007, Georg-August-Universität Göttingen:
    Singuläre K3 Flächen
    [Events calendar of the mathematical faculty Göttingen (German)]
  102. 21.12.2006, Rheinische Friedrich-Wilhelms-Universität Bonn:
    Singular K3 surfaces
    [Bonn mathematics events calendar]
  103. 09.12.2006, CMS Winter 2006 Meeting:
    Classifying singular K3 surfaces
    [Session on Calabi-Yau Varieties and Mirror Symmetry]
  104. 14.11.2006, Rice University, Houston:
    Classifying singular K3 surfaces
    [Rice Algebraic Geometry Seminar]
  105. 24.10.2006, Harvard University:
    Classifying singular K3 surfaces
    [Harvard/MIT Algebraic Geometry Seminar]
  106. 21.10.2006, Fields Institute, Toronto:
    CM-modular forms and Calabi-Yau varieties
    [Workshop on Algebraic Varieties]
  107. 04.10.2006, Harvard University:
    CM newforms with rational coefficients
    [Harvard/ Number Theory Seminar]
  108. 08.07.2006, Lauenbrück Seminar:
    Elliptic modular surface for the commutator subgroup of SL(2,Z)
  109. 16.03.2006, Universita' degli Studi di Milano:
    Modularity of Calabi-Yau varieties
    [Number Theory Seminar Milano]
  110. 02.02.2006, Universita' degli Studi di Milano:
    Calabi-Yau threefolds as fibre products of elliptic surfaces
    [Algebraic Geometry Seminar Milano]
  111. 20.12.2005, University Duisburg-Essen, Germany:
    Arithmetic of singular K3 surfaces and Hecke eigenforms
    [DFG-Research group "Arithmetic and Geometry"]
  112. 09.08.2005, AMS Summer Institute on Algebraic Geometry, University of Washington, Seattle, USA:
    Arithmetic of K3 surfaces
    [2005 AMS Summer Institute on Algebraic Geometry]
  113. 28.04.2005, University of Hannover, Germany:
    Hecke eigenforms with complex multiplication and rational coefficients
    [Oberseminar AKG Hannover]
  114. 18.03.2005, University of Groningen, Netherlands:
    Extremal elliptic K3 fibrations
    [Intercity number theory seminar]
  115. 25.11.2004, University of Hannover, Germany:
    Singular K3 Surfaces
    [Oberseminar AKG Hannover]
  116. 16.11.2004, University of Mainz, Germany:
    On the modularity of certain fibre products of the rational elliptic modular surface of level 5
    [Gästeseite AG Mainz]
  117. 05.04.2004, University of Hannover, Germany:
    Modular Calabi-Yau threefolds arising from the modular elliptic surface of level 5
    [AKG Miniworkshop]
  118. 23.03.2004, Duke University, Durham, NC, USA:
    New examples of modular rigid Calabi-Yau threefolds
    [Duke AG, Spring 2004]