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math-ph2026
Universality of the conformal anomaly
Sid Maibach, Eveliina Peltola
We prove a universal property of local real one-dimensional modular functors, which may be thought of as central extensions of the sewing operation on the (infinite-dimensional) Se…
math-ph2026
Complex deformations of the circle: Group cohomology and Virasoro uniformization
Sid Maibach, Eveliina Peltola
We approach the question of complexification of the diffeomorphism group of the circle by considering real-analytic maps from the circle into the punctured complex plane with windi…