U utorak, 25.  travnja 2023. okviru Seminara za algebru,  

Andrei Babichenko, Weizmann Institute of Science, Rehovot, Izrael, održat će predavanje  

Nappi-Witten VOA and some of its representations
 

Sažetak:
 We consider VOA H4 constructed from non-reductive Lie algebra h4   of the Wess-Zumino-Witten model discussed by Nappi and Witten.
We study the category of H4 weight modules, with finite-dimensional weight spaces,
classify the irreducible H4-modules in this category and compute their characters.
We observe non semisimplicity of this category suggesting that the VOA is logarithmic.
 

 Seminar počinje u 15:00 sati u predavaonici A101. Pozivaju se članovi Seminara i svi zainteresirani da prisustvuju ovom zanimljivom predavanju.
 
Drazen Adamovic