Mathematics – Quantum Algebra
Scientific paper
2001-12-15
Mathematics
Quantum Algebra
Latex2e, 31 pages, many eps figures
Scientific paper
Covariant first order differential calculus over quantum complex Grassmann manifolds is considered. It is shown by a Pusz-Woronowicz type argument that under restriction to calculi close to classical Kaehler differentials there exist exactly two such calculi for the homogeneous coordinate ring. Complexification and localization procedures are used to induce covariant first order differential calculi over quantum Grassmann manifolds. It is shown that these differential calculi behave in many respects as their classical counterparts. As an example the q-deformed Chern character of the tautological bundle is constructed. Keywords: Quantum groups, quantum spaces, quantum Grassmann manifolds, differential calculus
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