Is it possible to explicitly describe the gauge transformation $F$ that appears in Theorem XIX.4.3 of Kassel's Quantum groups, such that such that $U_{\hbar}(\mathfrak{g})$ and $(U(\mathfrak{g})[[\hbar]])_F$ are isomorphic?
Is there an explicit description of a gauge transformation $F$ such that $U_{\hbar}(\mathfrak{g})$ and $(U(\mathfrak{g})[[\hbar]])_F$ are isomorphic?
yohei ohta
- 255
- 1
- 7