A Lie grading which is not a semigroup grading (Q852654)
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| Language | Label | Description | Also known as |
|---|---|---|---|
| English | A Lie grading which is not a semigroup grading |
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A Lie grading which is not a semigroup grading (English)
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15 November 2006
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In this note, the author points out that he has observed a mistake in the proof of an assertion by Patera and Zassenhaus published in 1989 and provides a counterexample of this assertion by constructing a graded Lie algebra whose grading is not given by a semigroup.
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Lie grading
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semigroup
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counterexample
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