منابع مشابه
Projections of Virasoro Singular Vectors
We use recently derived explicit formulae for the Virasoro algebra’s singular vectors to give constructive proofs of three results due to Feigin and Fuchs. The main result, which is needed for a rigorous treatment of fusion, describes the action of the singular vectors on conformal fields.
متن کاملTechnology, Proximity, and Measures of Kin Support
The proposition is advanced that many current measures of kinship strength may paradoxically indicate inadequate or weakened kinship structures. That is so because they rely on measures that emphasize continuous proximity. This curious paradox is a consequence of inattention to the relationship between technology, services, and proximity. This article presents nonproximity indicators of kinship...
متن کاملPolyharmonicity and algebraic support of measures
Our main result states that two signed measures μ and ν with bounded support contained in the zero set of a polynomial P (x) are equal if they coincide on the subspace of all polynomials of polyharmonic degree NP where the natural number NP is explicitly computed by the properties of the polynomial P (x). The method of proof depends on a definition of a multivariate Markov transform which is an...
متن کاملThe Virasoro algebra
0 −→ c −→ g1 φ1 −→g −→ 0 such that c ⊆ Z(g1), the center of g̃. A morphism of central extensions is a Lie algebra homomorphism ψ : g1 → g2 such that φ2ψ = φ1. A universal central extension is a central extension g̃ such that there is a unique morphism from g̃ to every other central extension of g. The Schur multiplier is the kernel of the universal central extension of g. It classifies the project...
متن کاملTernary Virasoro - Witt Algebra
A 3-bracket variant of the Virasoro-Witt algebra is constructed through the use of su(1,1) enveloping algebra techniques. The Leibniz rules for 3-brackets acting on other 3-brackets in the algebra are discussed and verified in various situations. [email protected], [email protected], [email protected]
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: Comptes Rendus Mathematique
سال: 2002
ISSN: 1631-073X
DOI: 10.1016/s1631-073x(02)02539-6