#### 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: Number Theory and Geometry

**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.

**Mikhail Hlushchanka**(webpage)

Interests: Dynamical systems (in particular, holomorphic, symbolic, and arithmetic dynamics), self-similar groups, conformal and fractal geometry.

**Valentijn Karemaker**(webpage)

Interests: Arithmetic geometry and number theory: rational points on, zeta functions of, and Galois representations attached to algebraic varieties.

**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**(webpage)

Interests: Chromatic homotopy theory (stable and unstable), equivariant homotopy theory, topological modular forms, moduli of elliptic curves

**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.

**Marta Pieropan**(webpage)

Interests: algebraic geometry and number theory, Diophantine geometry, analytic number theory

**Álvaro del Pino Gómez**(webpage)

Interests: Differential Geometry and Topology, particularly h-principle and topological aspects in the study and classification of geometric structures (some concrete examples: symplectic, contact, and Engel structures; other bracket-generating distributions).

**Lola Thompson**(webpage)

Interests: Analytic number theory, algorithmic number theory, applications of number theory to spectral geometry

**Fabian Ziltener**(webpage)

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

#### Postdoctoral researchers

**Jens Forsgaard**

**Lasse Grimmelt**(webpage)

Interests: Analytic number theory

**Stefano Marseglia**(webpage)

Interests: Arithmetic Geometry and Number Theory, with focus on computational aspects

**Adrien Sauvaget**

Supervisor: Carel Faber

**Shuntaro Yamagishi**(webpage)

Interests: Number theory

**Mingcong Zeng**(webpage)

Interests: I am particularly interested in understanding chromatic homotopy theory from an equivariant perspective.

#### PhD students

**Luca Accornero**

Supervisor: Marius Crainic

**Mar Curcó Iranzo**(webpage)

Supervisor: Valentijn Karemaker

Interests: Arithmetic geometry and number theory: Rational points on Jacobians of modular curves, modular forms and elliptic K3 surfaces.

**Jack Davies**(webpage)

Supervisor: Lennart Maier

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

**Aaron Gootjes-Dreesbach**

Supervisor: Álvaro del Pino

Interests: Differential Geometry and Topology, particularly the h-principle

**Jan-Willem van Ittersum**

Supervisor: Gunther Cornelissen & Don Zagier

Interests: Number theory (in particular (quasi)modular forms), algebraic combinatorics and enumerative geometry.

**Maarten Mol**(webpage)

Supervisor: Marius Crainic

**Sergej Monavari**

Supervisor: Martijn Kool

**Jaco Ruit**

Supervisor: Lennart Meier

Interests: Homotopy theory, particularly equivariant stable homotopy theory and higher category theory

**Yuqing Shi**(webpage)

Supervisor: Gijs Heuts

Interests: Homotopy theory, with a focus on Goodwillie calculus and its applications.

**Dirk van Bree**(webpage)

Supervisor: Martijn Kool

**Marieke van der Wegen**

Supervisor: Gunther Cornelissen and Hans Bodlaender

**Carlo Verschoor**(webpage)

Supervisor: Frits Beukers

Interests: The monodromy of A-hypergeometric functions.

**Aldo Witte**

Supervisor: Gil Cavalcanti & Marius Crainic

**Jetze Zoethout**

Supervisor: Jaap van Oosten

Interests: Category and topos theory, realizability, abstract theory of computation