#### Staff Members

Erik van den
Ban (webpage)

Interests: Lie groups, symmetric spaces, harmonic analysis, representation theory, Radon transforms, differential geometry.

Frits
Beukers (webpage)

Interests: Number theory (in particular diophantine matters), Arithmetic and monodromy of linear differential equations, hypergeometric functions.

Gil
Cavalcanti (webpage)

Interests: Differential geometry and differential topology of symplectic, complex and generalized complex manifolds as well as their applications to string theory.

Gunther
Cornelissen (webpage)

Interests: Arithmetic Geometry (and connections with logic, number theory and mathematical physics).

Marius
Crainic (webpage)

Interests: Differential Geometry - especially Poisson, but also Symplectic, Contact, generalised complex structures, Foliations, Lie groupoids (active), Lie pseudogroups, EDS and the geometry of PDEs (more recent), Noncommutative Geometry (dormant).

Carel
Faber (webpage)

Interests: Algebraic geometry (moduli spaces of curves and of abelian varieties, tautological classes, Siegel and Teichmüller modular forms and their relation to the cohomology of moduli spaces, linear orbits of plane curves).

André
Henriques (webpage)

Interests: Algebraic Topology.

Martijn
Kool (webpage)

Interests: Algebraic geometry. Moduli spaces of sheaves on toric varieties. Stable pair invariants and their connections with enumerative geometry.

Johan van de
Leur (webpage)

Interests: Lie Theory, Integrable Systems, Mathematical Physics.

Ieke
Moerdijk (webpage)

Interests: Algebraic topology, applications of topology to mathematical logic.

Tobias
Müller (webpage)

Interests: Combinatorics and probability.

Jaap van
Oosten (webpage)

Interests: Logic; realizability, proof theory, topos theory, models of computability.

Damaris
Schindler (webpage)

Interests: Number theory, analytic number theory and connections to arithmetic geometry.

Fabian
Ziltener (webpage)

Interests: Symplectic geometry, gauge theory, and partial differential equations.

#### Postdocs

Michael
Bailey (webpage)

Interests: Generalized complex geometry (including symplectic, complex and Poisson geometry), geometric analysis, groupoids/stacks, etc.

Stefan
Behrens (webpage)

Interests: Low dimensional topology (4-manifolds, mapping class groups of surfaces). Singularities of smooth maps in low dimensions. Invariants in low dimensional topology (Heegaard-Floer, Seiberg-Witten).

Ana Ros
Camacho (webpage)

Interests: Mathematical physics and representation and category theory.

Martijn
Caspers (webpage)

Interests: Operator algebras, Quantum groups, Harmonic Analysis.

René
Conijn (webpage)

Interests: Percolation.

Bas
Janssens (webpage)

Interests: Differential geometry and representation theory. In particular: cohomology and representation theory of infinite dimensional Lie algebras of geometric origin, such as various Lie algebras of vector fields and gauge algebras.

#### Phd Students

Arjen
Baarsma (webpage)

Supervisor: Gil Cavalcanti

Interests: Generalised complex structures and their deformations.

Francesco
Cattafi (webpage)

Supervisor: Marius Crainic

Interests: The geometry of partial differential equations.

Benjamin
Hansen

Supervisor: Tobias Müller

Interests: Percolation.

Dušan
Joksimović

Supervisor: Fabian Ziltener

Interests: Symplectic geometry.

Ralph
Klaasse (webpage)

Supervisor: Gil Cavalcanti

Interests: Seiberg-Witten theory, generalized complex geometry and symplectic geometry.

Joey van der
Leer Duran (webpage)

Supervisor: Gil Cavalcanti

Interests: Generalised complex Geometry.

Markus
Schepers

Supervisor: Tobias Müller

Harry
Smit

Supervisor: Gunther Cornelissen

Interests: Class field theory and analytic number theory.

Lauran
Toussaint (webpage)

Supervisor: Marius Crainic

Interests: The relation between Poisson and contact geometry.

Carlo
Verschoor (webpage)

Supervisor: Frits Beukers

Interests: The monodromy of A-hypergeometric functions.

Roy
Wang (webpage)

Supervisor: Marius Crainic

Interests: Rigidity and normal forms in differential geometry.

#### Master Students

2016-2018: Thomas Blom, Marc Houben, Jeroen Huijben, Mark Kamsma, Bjarne Kosmeijer, Maarten Mol, Djurre Tijsma, Esther Visser, Luka Zwaan

2015-2017: Rik Voorhaar, Tom de Jong, Ivo Slegers, Thijs van der Gugten, Pol van Hoften, Casper Putz, Jan Willem van Ittersum, Lois van der Meijden, Aldo Witte, Jetze Zoethout

2014-2016: Harry Smit

#### Visitors

Matija Basic (visiting from Zagreb)

#### Exchange Students

Daniel Agostini (from Berlin, local supervisor: Carel Faber)

#### Former Members (since 2013)

Dana
Balibanu

Was a PhD student in Utrecht

Supervisor: Erik van den Ban and Johan van de Leur

Pedro
Frejlich

Was a postdoc in Utrecht

Matias del
Hoyo (webpage)

Was a postdoc in Utrecht

Sebastian
Klein (webpage)

Was a PhD student in Utrecht

Supervisor: Gunther Cornelissen and Paul Balmer (UCLA)

Anshui
Li

Was a PhD student in Utrecht

Supervisor: Tobias Müller

David
Martinez Torres (webpage)

Was a postdoc in Utrecht

Boris
Osorno Torres

Was a PhD student in Utrecht

Supervisor: Marius Crainic

Florian
Schaetz (webpage)

Was a postdoc in Utrecht

Daniele
Sepe (webpage)

Was a postdoc in Utrecht