collaborators

2 papers

math.RT2026

Center of the affine at the critical level and pseudo-differential operators

Dražen Adamović, Boris Feigin, Shigenori Nakatsuka

We prove that the center of the affine Lie algebra at the critical level is generated by the coefficients in the expansion of the pseudo-differentia…

hep-th2024

Vertex algebras with big center and a Kazhdan-Lusztig Correspondence

Boris L. Feigin, Simon D. Lentner

Certain deformable families of vertex algebras acquire at a limit of the deformation parameter a large center, similar to affine Lie algebras at critical level. Then the vertex alg…