REFERENCES
- Bavula , V. V. (2007). The inversion formula for automorphisms of the Weyl algebras and polynomial algebras. J. Pure and Applied Algebra 210:147–159.
- Bavula , V. V. ( 2007 ). Generators and defining relations for ring of invariants of commuting locally nilpotent derivations or automorphisms . J. London Math. Soc. 76 ( 1 ): 148 – 164 .
- Communicated by M. Bresar.