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7 votes
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Frenkel-Kac's vertex operator realisation of the basic representation of an untwisted affine Kac-Moody algebra

Let $\mathfrak{g}$ be a finite-dimensional simple Lie algebra over $\mathbb{C}$ and let $\hat{\mathfrak{g}} := (\mathfrak{g}[t^{\pm 1}] \oplus \mathbb{C} c) \rtimes \mathbb{C} D$ be the corresponding ...
Dat Minh Ha's user avatar
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7 votes
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107 views

Reference request: superconformal algebras and representations

I am looking for a book/monograph which deals with superconformal (vertex operator) algebras and their representation theory. What are some good books to understand to begin with the definition of a ...
winawer's user avatar
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4 votes
0 answers
70 views

Permutation matrix in terms of an $\mathfrak{su}(r)$-basis (generalised Gell-Mann matrices)

Let $V \cong \mathbb{C}^r$ be the defining representation of $\mathfrak{su}(r)$. Then the permutation on $V \otimes V$ can be expressed as $$ P = \frac{1}{r} \, 1 \otimes 1 + \frac{1}{2} \sum_{a=1}^{r^...
Jules Lamers's user avatar
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1 vote
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K-finiteness of unitary representations of Poincaré-like groups?

$\DeclareMathOperator\SO{SO}\DeclareMathOperator\ISO{ISO}$I'd like to know if there are any papers that study the following problems: Determine when decomposing the unitary irreps of $\ISO(d,1)$ into ...
Lacia's user avatar
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