Stolz Positive Scalar Curvature Structure Groups, Proper Actions and Equivariant 2-Types

• Опубліковано в: : Symmetry, Integrability and Geometry: Methods and Applications
• Дата: 2025
• Автори: Puglisi, Massimiliano, Schick, Thomas, Zenobi, Vito Felice
• Формат: Стаття
• Мова: Англійська
• Опубліковано: Інститут математики НАН України 2025
• Онлайн доступ: https://nasplib.isofts.kiev.ua/handle/123456789/214190
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Stolz Positive Scalar Curvature Structure Groups, Proper Actions and Equivariant 2-Types. Massimiliano Puglisi, Thomas Schick and Vito Felice Zenobi. SIGMA 21 (2025), 093, 19 pages

In this note, we study equivariant versions of Stolz's -groups, the positive scalar curvature structure groups ˢᵖⁱⁿₙ()ᴳ, for proper actions of discrete groups . We define the concept of a fundamental groupoid functor for a -space, encapsulating all the fundamental group information of all the f...