activity
20242026
collaborators

7 papers

math.KT2026

An equivalence between two frameworks for real algebraic K-theory

Hadrian Heine, Markus Spitzweck, Paula Verdugo

We prove an equivalence between the real -theory genuine -spectra of Calmès et al. for Poincaré -categories and the one of the authors of this work for Waldhausen…

math.CT2026

A duality between monads and monadic morphisms

Hadrian Heine

We establish a duality between monads and monadic morphisms in any -category and characterize monadic morphisms in a wide class of examples. This duality unifies severa…

math.CT2025

On bi-enriched -categories

Hadrian Heine

We extend Lurie's definition of enriched -categories to notions of left enriched, right enriched and bienriched -categories, which generalize the concepts of closed…

math.AT2025

A derived Milnor-Moore theorem

Hadrian Heine

For every stable presentably symmetric monoidal -category we use the Koszul duality between the spectral Lie operad and the cocommutative cooperad to construc…

math.AT2025

A local-global principle for parametrized -categories

Hadrian Heine

We prove a local-global principle for -categories over any base -category : we show that any -category over $\mat…

math.KT2025

Infinity categories with duality and hermitian multiplicative infinite loop space machines

Hadrian Heine, Alejo Lopez-Avila, Markus Spitzweck

We show that any preadditive infinity category with duality gives rise to a direct sum hermitian K-theory spectrum. This assignment is lax symmetric monoidal, thereby producing E-i…