Events

2026

Hyperboloidal Foliations and their Application

Workshop of the hyperboloidal research network

Mon, 12 Jan 2026 — Fri, 16 Jan 2026 Erwin Schrödinger Institute

David Hilditch, Rodrigo Panosso Macedo, Alex Vañó-Viñuales, Anıl Zenginoğlu

2025

Hyperboloidal neutron star and black hole in spherical symmetry

May 2025 Virtual Infinity Seminar by Alex Vañó-Viñuales (University of the Balearic Islands)

Fri, 16 May 2025 14:00 UTC Online

Alex Vañó-Viñuales

Hyperboloidal neutron star and black hole in spherical symmetry

Evolution of Energy and Linear Momentum in Asymptotically Hyperboloidal Initial Data Sets

April 2025 Virtual Infinity Seminar by Saradha Senthil-Velu (University of Tübingen)

Fri, 11 Apr 2025 14:00 UTC Online

Saradha Senthil-Velu

Evolution of Energy and Linear Momentum in Asymptotically Hyperboloidal Initial Data Sets

A Spacetime Interpretation of the Confluent Heun Functions in Black Hole Perturbation Theory

March 2025 Virtual Infinity Seminar by Marica Minucci (Niels Bohr Institute)

Fri, 14 Mar 2025 14:00 UTC Online

Marica Minucci

A Spacetime Interpretation of the Confluent Heun Functions in Black Hole Perturbation Theory

Nonlinear evolution of unstable charged de Sitter black holes with hyperboloidal formalism

February 2025 Virtual Infinity Seminar by Yu Tian (University of Chinese Academy of Sciences)

Fri, 14 Feb 2025 10:00 UTC Online

Yu Tian (田雨)

Nonlinear evolution of unstable charged de Sitter black holes with hyperboloidal formalism

Generalising hyperboloidal methods for non-relativistic systems

January 2025 Virtual Infinity Seminar by Christopher Burgess (University of St Andrews)

Fri, 17 Jan 2025 14:00 UTC Online

Christopher Burgess

Generalising hyperboloidal methods for non-relativistic systems

2024

Quasi-normal mode expansions of black hole perturbations: a hyperboloidal Keldysh’s approach

December 2024 Virtual Infinity Seminar by Jérémy Besson (Université de Bourgogne and MPI for Gravitational Physics)

Fri, 13 Dec 2024 14:00 UTC Online

Jérémy Besson

Quasi-normal mode expansions of black hole perturbations: a hyperboloidal Keldysh’s approach

A fairy-TAIL story

November 2024 Virtual Infinity Seminar by Marina De Amicis (Niels Bohr Institute)

Fri, 8 Nov 2024 14:00 UTC Online

Marina De Amicis

Arbitrarily long-lived linear black hole perturbations

October 2024 Virtual Infinity Seminar by Javier Carballo (University of Southampton)

Fri, 25 Oct 2024 14:00 UTC Online

Javier Carballo

Arbitrarily long-lived linear black hole perturbations

Generalized harmonic gauge on compactified hyperboloidal slices

September 2024 Virtual Infinity Seminar by David Hilditch (University of Lisbon)

Fri, 13 Sep 2024 14:00 UTC Online

David Hilditch

Generalized harmonic gauge on compactified hyperboloidal slices

Virtual Infinity Workshop 2024

Second workshop on hyperboloidal methods to be held virtually.

Mon, 1 Jul 2024 — Tue, 2 Jul 2024 Online via Zoom

David Hilditch, Rodrigo Panosso Macedo, Alex Vañó-Viñuales, Anıl Zenginoğlu

Time across null horizons

May 2024 Virtual Infinity Seminar by Anıl Zenginoğlu (University of Maryland)

Fri, 10 May 2024 14:00 UTC Online

Anıl Zenginoğlu

Hyperboloidal coordinates and blowup for wave equations

April 2024 Virtual Infinity Seminar by Roland Donninger (University of Vienna)

Fri, 12 Apr 2024 14:00 UTC Online

Roland Donninger

Pseudospectrum of black hole quasi-normal modes: results and obstacles

March 2024 Virtual Infinity Seminar by Valentin Boyanov (CENTRA)

Fri, 15 Mar 2024 14:00 UTC Online

Valentin Boyanov

Pseudospectrum of black hole quasi-normal modes: results and obstacles

Asymptotics in General Relativity: the role of spatial infinity

February 2024 Virtual Infinity Seminar by Juan Valiente Kroon (Queen Mary University of London)

Fri, 9 Feb 2024 14:00 UTC Online

Juan Valiente Kroon

Asymptotics in General Relativity: the role of spatial infinity

Conformal diagrams for strong-field hyperboloidal slices

January 2024 Virtual Infinity Seminar by Alex Vañó-Viñuales (CENTRA)

Fri, 12 Jan 2024 14:00 UTC Online

Alex Vañó-Viñuales

Conformal diagrams for strong-field hyperboloidal slices

2023

Studying black hole ringdown with hyperboloidal methods

December 2023 Virtual Infinity Seminar by Justin Ripley (University of Illinois, Urbana-Champaign)

Fri, 15 Dec 2023 14:00 UTC Online

Justin Ripley

Studying black hole ringdown with hyperboloidal methods

Soliton resolution on a wormhole

November 2023 Virtual Infinity Seminar by Piotr Bizon (Jagiellonian University)

Fri, 10 Nov 2023 14:00 UTC Online

Piotr Bizon

Hyperboloidal approach on black-hole spacetimes: the minimal gauge

October 2023 Virtual Infinity Seminar by Rodrigo Panosso Macedo (Niels Bohr Institute)

Fri, 13 Oct 2023 14:00 UTC Online

Rodrigo Panosso Macedo

Hyperboloidal approach on black-hole spacetimes: the minimal gauge

Infinity on a Gridshell

First workshop of the hyperboloidal research network

Mon, 10 Jul 2023 — Thu, 13 Jul 2023 Niels Bohr Institute, University of Copenhagen

David Hilditch, Rodrigo Panosso Macedo, Alex Vañó-Viñuales, Anıl Zenginoğlu