Highest Weight Representations of W-Type Lie Algebra Related with Virasoro Algebra
نویسندگان
چکیده
منابع مشابه
Highest weight representations of the Virasoro algebra
We consider representations of the Virasoro algebra, a one-dimensional central extension of the Lie algebra of vectorfields on the unit circle. Positive-energy, highest weight and Verma representations are defined and investigated. The Shapovalov form is introduced, and we study Kac formula for its determinant and some consequences for unitarity and degeneracy of irreducible highest weight repr...
متن کاملLie triple derivation algebra of Virasoro-like algebra
Let $mathfrak{L}$ be the Virasoro-like algebra and $mathfrak{g}$ itsderived algebra, respectively. We investigate the structure of the Lie triplederivation algebra of $mathfrak{L}$ and $mathfrak{g}$. We provethat they are both isomorphic to $mathfrak{L}$, which provides twoexamples of invariance under triple derivation.
متن کاملlie triple derivation algebra of virasoro-like algebra
let $mathfrak{l}$ be the virasoro-like algebra and $mathfrak{g}$ itsderived algebra, respectively. we investigate the structure of the lie triplederivation algebra of $mathfrak{l}$ and $mathfrak{g}$. we provethat they are both isomorphic to $mathfrak{l}$, which provides twoexamples of invariance under triple derivation.
متن کاملDetails of the Non-Unitarity Proof for Highest Weight Representations of the Virasoro Algebra
We give an exposition of the details of the proof that all highest weight representations of the Virasoro algebra for c < 1 which are not in the discrete series are non-unitary. The Virasoro algebra is the infinite dimensional Lie algebra with generators Ln, neZ, satisfying the commutation relations lK>^ = (TM-n)Lm+n+^c(m 3-m)δm+nt0. (1) The number c is called the central charge. The Verma modu...
متن کاملOn unitary representations of the Virasoro algebra
Some representations π of b of particular interest [2] are the Verma modules (V, π) = (V , π), h, c ǫ R. They are characterized by the following conditions. (i) There is a vector v = vφ 6= 0 in V such that Lnv = 0, n > 0, L0v = hv, Zv = cv. (ii) Let A be the set of sequences of integers k1,≥ k2 ≥ . . . ≥ kr > 0 of arbitrary length, and if α ǫ A let vα = π(L−k1) . . . π(L−kr)vφ. Then {vα|α ǫ A} ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Pure Mathematics
سال: 2012
ISSN: 2160-7583,2160-7605
DOI: 10.12677/pm.2012.24036