{ "id": "math/9806140", "version": "v1", "published": "1998-06-25T09:18:44.000Z", "updated": "1998-06-25T09:18:44.000Z", "title": "Infinite dimensional geometry of $M_1=Diff_+(S^1)/PSL(2,R)$ and $q_R$--conformal symmetries", "authors": [ "Denis V. Juriev" ], "comment": "14 pp, AMSTEX", "categories": [ "math.RT", "math.DG", "math.QA" ], "abstract": "A geometric interpretation of approximate ($HS$-projective or $TC$-projective) representations of the Witt algebra $w^C$ by $q_R$-conformal symmetries in the Verma modules $V_h$ over the Lie algebra $sl(2,C)$ is established and some their characteristics are calculated. It is shown that the generators of representations coincide with the Nomizu operators of holomorphic $w^C$-invariant hermitean connections in the deformed holomorphic tangent bundles $T_h(M_1)$ over the infinite-dimensional K\\\"ahler manifold $M_1=\\Diff_+(S^1)/PSL(2,R)$, whereas the deviations $A_{XY}$ of the approximate representations coincide with the curvature operators for these connections, which supply the determinant bundle $det T_h(M_1)$ by a structure of the prequantization bundle over $M_1$. At $h=2$ the geometric picture reduces to one considered by A.A.Kirillov and the author [Funct.Anal.Appl. 21(4) (1987) 284-293] (without any relation to the approximate representations) for ordinary tangent bundles.", "revisions": [ { "version": "v1", "updated": "1998-06-25T09:18:44.000Z" } ], "analyses": { "keywords": [ "infinite dimensional geometry", "conformal symmetries", "ordinary tangent bundles", "approximate representations coincide", "deformed holomorphic tangent bundles" ], "note": { "typesetting": "AMS-TeX", "pages": 14, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "1998math......6140J" } } }