0-Form, 1-Form and 2-Group Symmetries via Cutting and Gluing of Orbifolds

Understand

Orbifold singularities of M-theory constitute the building blocks of a broad class of supersymmetric quantum field theories (SQFTs).

• In this paper we show how the local data of these geometries determines global data on the resulting higher symmetries of these systems.
• In particular, via a process of cutting and gluing, we show how local orbifold singularities encode the 0-form, 1-form and 2-group symmetries of the resulting SQFTs.
• Geometrically, this is obtained from the possible singularities which extend to the boundary of the non-compact geometry.