2008:
 
Wednesday, 21 May, 19:30-20:30, Leiden
(Colloquium Ehrenfestii)
Rethinking the Bohr-Einstein debate
 
Wednesday, 9 April, 13:55-14:20, Tilburg
(Reduction, emergence, and physics)
Macroscopic observables and the Born rule in quantum mechanics
 
Thursday, March 20, 13:30-15:00, Nijmegen
(Algebra & Logic Seminar)
Algebraic and logical notions of space
 
Wednesday, 13 February, 11:00-12:00, Nijmegen
(Studentvriendelijk Wiskundig Colloquium)
The physical relevance of the foundations of mathematics
 
Thursday, 31 January, 16:00-17:00, Groningen
(General Physics Colloquium)
Rethinking the Bohr-Einstein debate
 
Friday, 11 Januari, 16:00-16:30, Utrecht
(Logic and Physics Symposium)
Tops theory and quantum physics: towards spatial quantum logic
 
2007:
 
Friday, 7 December, Hamburg
(60. Geburtstag Klaus Fredenhagen)
The principle of general tovariance
 
Tuesday, November 13, 15:00-16:00, Nijmegen
(ISIS Colloquium)
Werner Heisenberg: torn between objectivity and subjectivity
 
Friday, 9 November, 13:00-17:00, Nijmegen
(Hart van de Wetenschap voor bobo’s)
Bestaat Toeval?
 
Wednesday, 17 October, 10:30-11:00, Nijmegen
(PR bijeenkomst wiskunde)
Lokale PR versus landelijke trends
 
 
 
Tuesday, 9 October, 14:30-15:00, Utrecht
(Freudenthal Instituut)
Afstemming tussen wiskunde en natuurkundeonderwijs
 
Monday, 8 October, 16:30-17:00, Nijmegen
(Lustrumsymposium FNWI)
Wiskunde: de kop is eraf en nu verder
 
Wednesday, 3 October, 13:20-14:05, Princeton
(Deep Beauty: John von Neumann memorial conference)
The principle of general tovariance
 
 
Tuesday, 25 September, 18:00-12:00, Nijmegen
(Honours Programma)
Vrije wil
 
5-8 September, Lisbon
(XVI International Fall Workshop on Geometry and Physics)
The principle of general tovariance
 
Wednesday, June 27, 16:30-16:45, Amsterdam
(Boekpresentatie Sander Bais, Spui 25)
Albert Einstein in tien minuten
 
Thursday, June 7, 9:00-10:00, Perimeter Institute, Waterloo, Canada
(Operational quantum physics and the quantum-classical contrast)
Macroscopic observables and quantization
 
Tuesday, 29 May, 16:00-17:00, Nijmegen
(Algemeen Natuurkundig Colloquium)
Determinism in physics
 
Tuesday, 22 May, 20:00-21:00, Nijmegen
(Crossroads, Studentenkerk)
Chance and determinism
 
Wednesday, 25 April, 13:30-14:30, Amsterdam, UvA
(Talent voor onderwijs, onderwijs voor talent)
Blijf niet mokkend aan de kant staan
 
Wednesday, 18 April, 16:30-17:30, Nijmegen
(In zee met wiskunde D)
Toeval is logisch
 
Tuesday, 17 April, 16:30-17:30, TU Delft
(In zee met wiskunde D)
Toeval is logisch
 
Tuesday, 27 February, 16:20-17:10, Paris, IHP
(Groupoids in operator algebras and noncommutative geometry)
Groupoids, quantales and C*-algebras
 
Monday, 29 January, 16:30-17:30, TU Eindhoven
(In zee met wiskunde D)
Logisch denken over kansen
 
Monday, 22 January, 15:30-16:30, TU Twente
(In zee met wiskunde D)
Logisch denken over kansen
 
 
2006:
 
Wednesday, 27 September, 20:00-22:00, Nijmegen
(Honours Programma Radboud Universiteit)
Leven met onzekerheid
 
Wednesday, 27 September, 09:50-10:15 en 10:30-10:45, Utrecht
(Scientia non olet, Nationale Gymnasiumdag)
Kennis en workshop: het wiskundeonderwijs is te makkelijk gemaakt
 
Wednesday, 30 August, 20:00-20:30, Nijmegen
(Ethos of science, Nijmegen Summer University)
Introduction to the film Copenhagen
 
Saturday, 22 July, 11:30-12:30, Oxford
(Cats, Kets and Cloisters)
Between classical and quantum (survey talk)
 
Wednesday, 17 May, Nijmegen
(Marie Curie Symosium on Science and Religion)
Chair - introductory remarks
 
Thursday, 4 May, 16:30-18:00 Oxford
(History and Philosophy of Science)
The Einstein-Bohr debate
 
Tuesday, 2 May, 12:00-13:00, Oxford
(Quantum Field Theory Seminar)
Functoriality of quantization and a Guillemin-Sternberg conjecture for noncompact groups and spaces
 
Wednesday, 26 April, 11:00-12:00, Nijmegen
(Studentvriendelijk wiskundig colloquium)
De indexstelling van Atiyah en Singer
 
Tuesday, 25 April, 15:00-17:00, Enschede (TUT)
(Colloquium vakdidactiek wiskunde)
Bestaat Toeval?
 
Monday, 27 March, 14:15-15:00, Delft
(Nederlands Mathematisch Congres)
The Atiyah-Singer index theorem
 
Saturday, 18 February, Nijmegen
(Ouderdag wiskunde RU)
Bestaat Toeval?
 
Wednesday, 8 February, 20:00-22:30, Nijmegen
(Science Cafe Debate with Robbert Dijkgraaf, Sijbrand de Jong, Piet Timmermans): Is er een bèta-crisis?
Friday, 3 February, 11:15-12:00 (T.B.C.), Noordwijkerhout
(Nationale Wiskunde Dagen)
Bestaat Toeval?
 
Tuesday, 31 January, 20:00-20:30, Nijmegen
Voorlichting RU-wiskunde
N.S.G. Groenewoud
 
Friday, 27 January, 13:45-14:45, Nijmegen
(Onderwijs Anders, Algemene Docentendag FNWI)
Bestaat Toeval? De ongelijkheden van Bell
 
2005:
 
Thursday, 24 November, 16:00-17:00, TU Twente
(Studium Generale)
Isaac Newton
 
Monday, 21 November, 15:00-15:30 (T.B.C.), Utrecht
(Eerste Universum-lezing)
No pain, no gain
 
Tuesday, 15 November, 12:30-13:30, Nijmegen
(Soeterbeeck-lunch)
Het Einstein-Bohr debat
 
Friday, 28 October, 15:00-16:00, Freiburg
(Seminar Fundamentale Wechselwirkungen)
Rethinking the Bohr-Einstein debate
 
Wednesday, 26 October, 20:00-21:00, Oberwolfach
(Noncommutative Geometry and Quantum Field Theory)
The Einstein-Bohr debate
 
Thursday, 20 October, Nijmegen, 10:45-12:30, 13:30-15:45
(Nijmeegse Tweedaagse)
 De ongelijkheden van Bell
 
Monday, 3 October, 20:00-22:00, Amsterdam
(UvA Studium Generale)
Albert Einstein: Onsterfelijk fysicus, sterfelijk mens
 
Saturday, 24 September, 20:00-22:00, Radio Kootwijk
(Onzichtbare Dimensies, Theater Adhoc)
Public interview with Jan vd Berg
 
Tuesday, 12 July, 15:30-16:30, Utrecht
(Grondslagencolloquium)
The appearance of the classical world
 
Monday, 27 June, 12:30-13:30, Nijmegen
(Radboud Hospital)
Thomas Young (1773-1829): Arts, fysicus, genie
 
Monday, 13 June, 20:15-21:00, Nijmegen
(Einstein week)
De zwaartekracht van Newton tot Einstein
 
Friday, 22 May, Gent, 15:30-16:15
(Joint BeNeLuxFra Conference in Mathematics)
Functoriality of quantization and the Guillemin-Sternberg conjecture
 
Wednesday, 11 May, 15:30-16:30, Nijmegen
(Fysica, ten minste houdbaar tot...)
(In)determinisme in de fysica: wat zal de toekomst ons brengen?
 
Thursday, 5 May, 9:45-10:45, Stillwater, Minnesota
(Seven Pines Symposium IX: The Classical-Quantum Borderland)
Between classical and quantum
 
Friday, 29 April, 11:40-13:00, Maryland
(New Directions in the Foundations of Physics)
Heisenberg’s Umdeutung Today
 
Tuesday, 26 April, 20:00-21:00, Nijmegen
Hart van de Wetenschap (Honours-Program RU)
Determinisme
 
Thursday, 21 April, 17:30-17:50, Den Haag
(NWO Wiskundeclusters)
Genootschap voor Meetkunde en Kwantumtheorie
 
Tuesday, 19 April, 20:00-21:00, Nijmegen
Hart van de Wetenschap (Honours-Program RU)
Werner Heisenberg
 
 
 
Tuesday, 19 April, 18:00-19:00, Nijmegen
Hart van de Wetenschap (Honours-Program RU)
Isaac Newton
 
Thursday, 31 March, 19:30-20:00, Nijmegen
(Cultuur op de Campus)
Inleiding tot de film ‘Copenhagen’
 
Tuesday, 8 February, 16:15-17:15, Groningen
Index theory and quantization
 
Friday, 4 February, 14:00-15:00, Noordwijkerhout
(Nationale Wiskunde Dagen)
De indexstelling van Atiyah en Singer
 
Friday, 7 January, 15:45-16:30, Nijmegen
(oratie Radboud Universiteit Nijmegen)
 Op het kruispunt
 
2004:
 
Thursday, 16 December, 13:15-15:00, Nijmegen
Lie groupoids and Lie algebroids in physics and noncommutative geometry II
 
Tuesday, 7 December, 11:00-13:00, Amsterdam
Lie groupoids and Lie algebroids in physics and noncommutative geometry I
 
Friday, 20 October, 14-15:30, Univ. of Pittsburgh
(Foundations of Physics Handbook Workshop)
Between classical and Quantum.
 
Friday, 9 July, 16:00-17:00, Paris
(K-theory and Noncommutative Geometry)
The  ‘Quantization commutes with  reduction’ conjecture for noncompact groups
 
Tuesday, June 29, 20:00-22:00, Leusden
(Wiskunde en Werkelijkheid)
Wiskunde of Religie: Spinoza versus Newton
 
Wednesday, June 23, 15:30-16:30. Utrecht
(MRI Workshop on Lie Groups in Analysis, Geometry, and Mechanics)
The Guillemin--Sternberg  conjecture for noncompact groups
 
Wednesday, June 16, 15:00-16:00. Frankfurt
(Workshop zu Indextheorie und Quantisierung)
Die Vermutung von Guillemin--Sternberg  für nichtkompakte Gruppen
 
Thursday, May 27, 15:30-17:00, Utrecht
The Atiyah-Singer index theorem (with J.J. Duistermaat)
 
Thursday, 13 May, 9:15-11:00, Amsterdam
(Highlights-College)
De indexstelling van Atiyah en Singer voor eerstejaars verklaard
 
Wednesday, 12 May, 11:15-12:15. Amsterdam
(Algemeen wiskundig colloquium)
The Atiyah-Singer index theorem
 
Wednesday, 12 May, 15:15-16:00. Amsterdam
(Gastcollege wetenschap en samenleving)
Wiskunde en de Verlichting: Descartes - Spinoza - Newton
 
Tuesday, 30 March, 14:00-16:00, Amsterdam
(Seminar on Quantization, Noncommutative Geometry, and Symmetry)
Geometric quantization III
 
Tuesday, 16 March, 14:00-15:00, Marseille-Luminy
(Geometric Analysis)
Quantization,  the analytic assembly map, and the Guillemin--Sternberg conjecture for noncompact groups
 
Tuesday, 9 March, 14:00-16:00, Amsterdam
(Seminar on Quantization, Noncommutative Geometry, and Symmetry)
Geometric quantization II
 
Tuesday, 17 February, 14:45-15:45, Marseille-Luminy
(Noncommutative Geometry in Mathematics and Physics)
Functoriality of quantization and the Guillemin-Sternberg conjecture
 
Tuesday, 3 February, 14:00-16:00, Amsterdam
(Seminar on Quantization, Noncommutative Geometry, and Symmetry)
Geometric quantization I
 
2003:
 
Tuesday, October 14, 14:00-16:00, Amsterdam
(Seminar on Quantization, Noncommutative Geometry, and Symmetry)
From index theory to (geometric) quantization
 
Tuesday, October 7, 14:00-16:00, Amsterdam
(Seminar on Quantization, Noncommutative Geometry, and Symmetry)
From (deformation) quantization to index theory
 
Wednesday, August 20, 10:00-17:00, Villigst
(Welle trifft Teilchen)
Klassische und Quantenmechanik
 
Thursday, August 21, 20:00-22:00, Villigst
(Welle trifft Teilchen)
Werner Heisenberg und die deutsche Atombombe
 
Friday, July 11, 15:00-16:00, Aachen
Quantum mechanics and  representation theory: the new synthesis
 
Wednesday, 11 June, 16:00-16:30, Amsterdam (CWI)
Kansen en valkuilen bij de popularisering van de wiskunde
 
Friday, 23 May, 15:30-16:30 Amsterdam
(Mini-Workshop on Noncommutative Geometry)
Functoriality of quantization, KK-theory, and the Guillemin-Sternberg conjecture
 
Wednesday, 21 May, 15:15-16:00, Amsterdam
Wiskunde en de Verlichting: Descartes - Spinoza - Newton
 
 
 
 
Friday, 9 May, 14:00-14:45, Amsterdam
(Leve de Wiskunde)
De wiskunde achter de kwantumtheorie: Van atoomspectra tot niet-commutatieve meetkunde
 
Thursday, 1 May, 11:00-11:45, Nijmegen
(Nederlands Mathematisch Congres)
Quantum mechanics and  representation theory: the new synthesis
 
Friday, April 11, 11:00-13:00, Amsterdam
(Seminar on Noncommutative Geometry)
The general Baum-Connes conjecture
 
Friday, 4 April, 11:15-12:15, Utrecht
The royal path to quantization
 
Tuesday, 11 March, 12:45-13:45, Delft
De wiskunde achter de quantumtheorie: Van atoomspectra tot  niet-commutatieve meetkunde
 
Wednesday, 5 March, 16:00-17:30, Amsterdam
(Universiteitsbibliotheek)
Eerste drukken van boeken van Newton, Huygens and Descartes in de UBA
 
Wednesday, 5 March, 20:00-22:00, Amsterdam
(gesprek met Gerardjan Rijnders)
Uit het raam staren
 
Thursday, 13 February, 15:30-17:30, Utrecht
(Stafcolloquium)
Quantization as a functor
 
Friday, 31 January, 11:00-11:45, Amsterdam
(Scholierenvoorlichting)
Isaac Newton: de eerste moderne wiskundige
 
Thursday, 23 January, 10:00-12:00, Oberwolfach
(Workshop on the Quantization of Singular Symplectic Quotients)
Quantization as a functor
 
Wednesday, 15 January, 11:15-12:45, Hamburg
(Colloquium)
Quantization as a functor