A note on triangular derivations of

A note on triangular derivations of
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关于三角导数的注记

DOI:
10.1090/s0002-9939-00-05558-1
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发表时间:
2000
期刊:
Japanese journal of mathematics. New series
影响因子:
--
通讯作者:
G. Freudenburg
G. Freudenburg
中科院分区:
--
文献类型:
--
作者:
D. Daigle;G. Freudenburg

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对于特征为零的域,对每一个整数,我们构造了一个三角导子,它的常数环,虽然在其上生成,但不能由少于个元素生成。引用
For a fieldof characteristic zero, and for each integer, we construct a triangular derivation ofwhose ring of constants, though finitely generated over, cannot be generated by fewer thanelements. References