Seminar za algebru

U petak, 29. svibnja održat će se mini-radionica iz verteks-algebri u sklopu Seminara za algebru. 

Radionica će se održati na PMF-MO u predavaonici A102, s početkom u 14 sati. Pozivaju se članovi Seminara i svi zainteresirani da sudjeluju u ovoj radionici. U nastavku slijede detalji.
 

Mini radionica : Vertex algebras and related topics

Organizatori: D. Adamović, V. Pedić Tomić
Financiranje u sklopu  HRZZ projekta  "Affine vertex algebras and W-algebras"
Grant IP-2022-10-9006

Program:

1) 14:00 - 14:50
Qing Wang, Sveučilište u Xiamenu, Kina
Predavanje: Classification of irreducible ordinary modules for affine vertex superalgebras  

Sažetak：In this talk, we present our recent results on the classification of irreducible ordinary modules for affine vertex superalgebras at boundary admissible level. This is a joint work with Huaimin Li.
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2.) 15:00 - 15:50
Ching Hung Lam, Academia Sinica, Tajvan
Predavanje: Extra automorphisms of cyclic orbifolds of lattice VOAs

Sažetak:  Let $V$ be a vertex operator algebra and let $g$ be an automorphism of $V$ of finite order $n$.
The fixed-point subspace $V^g = \{ v \in V\mid g v = v \}$  is a subVOA and is often called an orbifold subVOA.
 It is clear that the orbifold VOA $V^g$ is preserved by $N_{\mathrm{Aut}(V)}(\langle g\rangle)$,
where $N_{\mathrm{Aut}(V)}(\langle g\rangle)$ is  the normalizer of $\langle g\rangle$ in $\mathrm{Aut}(V)$.
An automorphism $\phi\in \mathrm{Aut}(V)$ is called an extra automorphism if  $\phi$ is not induced from
an automorphism of $V$.

In this talk, we will discuss some necessary and sufficient conditions for the existence of extra automorphisms for  cyclic orbifolds of lattice VOAs.

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16:00-16:30
coffee break
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3) 16:30-17:20
Nina Yu, Sveučilište u Xiamenu, Kina
Predavanje：Zhu Algebras of Permutation Orbifold Vertex Operator Algebras

Sažetak：In this talk, I will discuss the Zhu algebras associated with permutation orbifold vertex operator algebras and related topics.