Jan Steinebrunner

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20242026

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math.CT2025

2-dimensional TFTs via modular $\infty$ -operads

Jan Steinebrunner

This lecture series is based on joint work in progress with Shaul Barkan, as well as work in progress of the author. The five sections of these notes correspond to the five lecture…

math.CT2024

Envelopes for Algebraic Patterns

Shaul Barkan, Rune Haugseng, Jan Steinebrunner

We generalize Lurie's construction of the symmetric monoidal envelope of an $\infty$ -operad to the setting of algebraic patterns. This envelope becomes fully faithful when sliced o…

2-dimensional TFTs via modular ∞-operads

Envelopes for Algebraic Patterns

2-dimensional TFTs via modular $\infty$ -operads