researcher in Bologna, working in low-dimensional geometry and topology

**news:** three days of geometry, topology, and geometric group theory in Bologna

March 22-23, 2023 ~~> Manifolds and groups in Bologna

March 24, 2023 ~~> Non-positive curvature in manifolds and groups

**published or accepted papers:**

**The signature of cusped hyperbolic 4-manifolds**, with Sasha Kolpakov and Steve Tschantz

to appear in*International Mathematics Research Notices*~~> arXiv**Character varieties of a transitioning Coxeter 4-orbifold**, with Andrea Seppi

*Groups, Geometry, and Dynamics*16:3 (2022), 779-842 ~~> journal, arXiv**A small closed convex projective 4-manifold via Dehn filling**, with Gye-Seon Lee and Ludovic Marquis

*Publicacions Matemàtiques*66:1 (2022), 369-403 ~~> journal, arXiv**Geometric transition from hyperbolic to anti-de Sitter structures in dimension four**, with Andrea Seppi

*Annali della Scuola Normale Superiore di Pisa, Classe di Scienze*XXIII:1 (2022), 115-176 ~~> journal, arXiv**Embedding non-arithmetic hyperbolic manifolds**, with Sasha Kolpakov and Leone Slavich

*Mathematical Research Letters*29:1 (2022), 247-274 ~~> journal, arXiv**Convex plumbings in closed hyperbolic 4-manifolds**, with Bruno Martelli and Leone Slavich

*Geometriae Dedicata*212:1 (2021), 243-259 ~~> journal, arXiv**Compact hyperbolic manifolds without spin structures**, with Bruno Martelli and Leone Slavich

*Geometry & Topology*24:5 (2020), 2647-2674 ~~> journal, arXiv**Many cusped hyperbolic 3-manifolds do not bound geometrically**, with Sasha Kolpakov and Alan Reid

*Proceedings of the American Mathematical Society*148:5 (2020), 2223-2243 ~~> journal, arXiv**Counting cusped hyperbolic 3-manifolds that bound geometrically**, with Sasha Kolpakov

*Transactions of the American Mathematical Society*373:1 (2020), 229-247 ~~> journal, arXiv**New hyperbolic 4-manifolds of low volume**, with Leone Slavich

*Algebraic & Geometric Topology*19:5 (2019), 2653-2676 ~~> journal, arXiv**Hyperbolic Dehn filling in dimension four**, with Bruno Martelli

*Geometry & Topology*22:3 (2018), 1647-1716 ~~> journal, arXiv**Spines of minimal length**, with Bruno Martelli, Matteo Novaga, and Alessandra Pluda

*Annali della Scuola Normale Superiore di Pisa, Classe di Scienze*XVII:3 (2017), 1067-1090 ~~> journal, arXiv

**phd thesis:**

**Cone-manifolds and hyperbolic surgeries**, advisor Bruno Martelli

University of Pisa (2017) ~~> link

**papers in preparation or work in progress:** (tentative titles)

**Dehn filling all the cusps of a hyperbolic 4-manifold**, with Gye-Seon Lee, Ludovic Marquis, and Tomoshige Yukita**Filling and drilling complex hyperbolic surfaces**, with Pietro Sabatino

*Last update: January 2023*