activity
20242026
most citedNew quasi-Einstein metrics on a two-sphere

2 citations · 2 across the 7 of their papers we have counts for

collaborators

8 papers

gr-qc2026

Near--extremal gravitational collapse in 4+1 dimensions: Schwarzschild--de--Sitter space

Maciej Dunajski, Sebastian J. Szybka

We numerically study a formation of near extremal horizons from a gravitational collapse of radially symmetric gravitational waves in dimensions within the framework of pure…

hep-th2026

Integrable Systems

Maciej Dunajski

These notes are based on lecture courses I gave to third year mathematics students at Cambridge. They could form a basis of an elementary one--term lecture course on integrable sys…

gr-qc2025

New asymptotically flat Einstein--Maxwell instantons

Bernardo Araneda, Maciej Dunajski

We disprove the Euclidean Einstein--Maxwell Black Hole Uniqueness Conjecture, and thus demonstrate that the semi-classical properties of coupled gravitational and electromagnetic f…

math.DG2025

Quasi-Einstein structures and Hitchin's equations

Alex Colling, Maciej Dunajski

We prove (Theorem 1.1.) that a class of quasi-Einstein structures on closed manifolds must admit a Killing vector field. This extends the rigidity theorem obtained in \cite{DL23} f…

hep-th2025

Gravitational Instantons, old and new

Maciej Dunajski

This is a review of gravitational instantons -- solutions to Riemannian Einstein or Einstein-Maxwell equations in four dimensions which yield complete metrics on non-compact four-m…

math.DG2024

Conformally Kähler structures

Maciej Dunajski, A. Rod Gover

We establish a one-to-one correspondence between Kähler metrics in a given conformal class and parallel sections of a certain vector bundle with conformally invariant connection, w…

hep-th2024

Integrability of quantum dots

Maciej Dunajski, Andrzej J. Maciejewski, Maria Przybylska

We determine the frequency ratios for which the Hamiltonian system with a potential \[ V=\frac{1}{r}+\frac{1}{2}\Big({ω_ρ}^2(x^2+y^2)+{ω_z}^2 z^2\Big) \] is compl…

math.DG2024★ 2 cited

New quasi-Einstein metrics on a two-sphere

Alex Colling, Maciej Dunajski, Hari Kunduri +1

We construct all axi-symmetric non-gradient -quasi-Einstein structures on a two-sphere. This includes the spatial cross-section of the extreme Kerr black hole horizon correspond…