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math.AT2026
Unveiling topology in imaging problems via quasi-isometry and persistent homology
Elli Karvonen, Matti Lassas, Pekka Pankka
We show that the topological structures, such as loops, voids, and higher-dimensional holes of unknown objects (of flow of an object in space-time) can be recovered from noisy and…
math.CV2026
On Lakes of Wada
Pekka Pankka, Jang-Mei Wu
There exist Lakes of Wada in which are quasiconformally equivalent to a Euclidean ball and are John domains.