An exponential lower bound for the degrees of invariants of cubic forms and tensor actions
An exponential lower bound for the degrees of invariants of cubic forms and tensor actions
复制标题
三次形式和张量作用的不变量度数的指数下界
DOI:
10.1016/j.aim.2020.107136
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发表时间:
2020
影响因子:
1.7
通讯作者:
Makam, Visu
中科院分区:
文献类型:
--
作者:
Derksen, Harm;Makam, Visu
Abstract Using the Grosshans Principle, we develop a method for proving lower bounds for the maximal degree of a system of generators of an invariant ring. This method also gives lower bounds for the maximal degree of a set of invariants that define Hilbert's null cone. We consider two actions: The first is the action of SL (V) on S 3 (V)⊕ 4, the space of 4-tuples of cubic forms, and the second is the action of SL (V)× SL (W)× SL (Z) on the tensor space (V⊗ W⊗ Z)⊕ 9. In both these cases, we prove an exponential lower degree bound for a system of invariants that generate the invariant ring or that define the null cone.
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DOI:
--
发表时间:
1963
期刊:
影响因子:
--
作者:
A. Białynicki
通讯作者:
A. Białynicki
影响因子:
1.3
作者:
Derksen, Harm;Makam, Visu
通讯作者:
Makam, Visu
影响因子:
1.4
作者:
G. Ivanyos;Youming Qiao;K. Subrahmanyam
通讯作者:
K. Subrahmanyam
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
R. Bryant;G. Kemper
通讯作者:
G. Kemper
DOI:
--
发表时间:
1975
期刊:
影响因子:
--
作者:
W. Haboush
通讯作者:
W. Haboush