#### 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).

Gijs
Heuts (webpage)

Interests: Algebraic topology, specifically Goodwillie calculus, chromatic homotopy theory, higher category theory and operads.

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.

Lennart
Meier

Interests: Algebraic topology with a special interest in the spectrum of topological modular forms TMF. Furthermore, abstract homotopy theory, stable and unstable chromatic homotopy theory and (derived) algebraic geometry.

Ieke
Moerdijk (webpage)

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

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

Ana Ros
Camacho (webpage)

Interests: Mathematical physics and representation and category theory.

Jens
Forsgaard

Magdalena
Kedziorek

Brice
le Grignou

Interests: Homotopy theory and operads.

Alvaro del
Pino Gomez

Supervisor: Marius Crainic

Adrien
Sauvaget

Supervisor: Carel Faber

#### Phd Students

Luco
Accornero

Supervisor: Marius Crainic

Francesco
Cattafi (webpage)

Supervisor: Marius Crainic

Interests: The geometry of partial differential equations.

Jack
Davies

Supervisor: Lennart Maier

Interests: Spectral algebraic geometry, chromatic homotopy theory, (higher/model) category theory, and (global/equivariant) stable homotopy theory.

Peter
Dawson

Supervisor: Ieke Moerdijk

Lasse
Grimmelt

Supervisor: Damaris Schindler

Jan-Willem van
Ittersum

Supervisor: Gunther Cornelissen & Don Zagier

Dušan
Joksimović

Supervisor: Fabian Ziltener

Interests: Symplectic geometry.

Sergej
Monavari

Supervisor: Martijn Kool

Harry
Smit

Supervisor: Gunther Cornelissen

Interests: Class field theory and L-series.

Lauran
Toussaint (webpage)

Supervisor: Marius Crainic

Interests: The relation between Poisson and contact geometry.

Marieke
van der Wegen

Supervisor: Gunther Cornelissen

Carlo
Verschoor (webpage)

Supervisor: Frits Beukers

Interests: The monodromy of A-hypergeometric functions.

Aldo
Witte

Supervisor: Gil Cavalcanti & Marius Crainic

#### Master Students

2017-2019: Jorge Becerra, Mireia Martínez, Nina Rutten, Feike van Ammers, Pascal (Adam) Sitbon, Chandrahas Piduri, Onno van Zomeren, Pepijn de Maat, Georgios Zacharopoulos, Aaron Gootjes-Dreesbach

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

Charlotte
Kirchhoff-Lukat (webpage)

#### Former Members (since 2013)

Michael
Bailey (webpage)

Was a postdoc in Utrecht

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

Dana
Balibanu

Was a PhD student in Utrecht

Supervisor: Erik van den Ban and Johan van de Leur

Stefan
Behrens (webpage)

Was a postdoc in Utrecht

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).

Martijn
Caspers (webpage)

Was a postdoc in Utrecht

Interests: Operator algebras, Quantum groups, Harmonic Analysis.

Panagiotis (Panos)
Christou (webpage)

Was a PhD student in Utrecht

Supervisor: Marius Crainic

Interests: Poisson geometry.

Johan
Commelin

Was a postdoc in Utrecht

Supervisor: Carel Faber

Pedro
Frejlich

Was a postdoc in Utrecht

Benjamin
Hansen

Was a PhD student in Utrecht

Supervisor: Tobias Müller

Interests: Percolation.

Matias del
Hoyo (webpage)

Was a postdoc in Utrecht

Bas
Janssens (webpage)

Was a postdoc in Utrecht

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.

Ralph
Klaasse (webpage)

Was a PhD student in Utrecht

Supervisor: Gil Cavalcanti

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

Sebastian
Klein (webpage)

Was a PhD student in Utrecht

Supervisor: Gunther Cornelissen and Paul Balmer (UCLA)

Joey van der
Leer Duran (webpage)

Was a PhD student in Utrecht

Supervisor: Gil Cavalcanti

Interests: Generalised complex Geometry.

Anshui
Li

Was a PhD student in Utrecht

Supervisor: Tobias Müller

David
Martinez Torres (webpage)

Was a postdoc in Utrecht

Joost
Nuiten (webpage)

Was a PhD student in Utrecht

Supervisor: Ieke Moerdijk

Interests: Abstract homotopy theory.

Boris
Osorno Torres

Was a PhD student in Utrecht

Supervisor: Marius Crainic

Florian
Schaetz (webpage)

Was a postdoc in Utrecht

Markus
Schepers

Was a PhD student in Utrecht

Supervisor: Tobias Müller

Daniele
Sepe (webpage)

Was a postdoc in Utrecht

Shan
Shah (webpage)

Was a PhD student in Utrecht

Supervisor: André Henriques

Interests: Conformal nets and their defects.

Roy
Wang (webpage)

Was a PhD student in Utrecht

Supervisor: Marius Crainic

Interests: Rigidity and normal forms in differential geometry.

Kay
Werndli

Was a postdoc in Utrecht

Supervisor: Ieke Moerdijk