A remark on Mackey's formula and Cartan invariants. (Q1429906)
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scientific article; zbMATH DE number 2066833
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | A remark on Mackey's formula and Cartan invariants. |
scientific article; zbMATH DE number 2066833 |
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A remark on Mackey's formula and Cartan invariants. (English)
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27 May 2004
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The main result of the paper under review is an inequality relating Cartan invariants of a finite group \(G\) to Cartan invariants of a subgroup \(H\) of \(G\). Its proof combines the Mackey formula and the Cauchy-Schwarz inequality. A number of applications are also given.
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Cartan invariants
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Brauer characters
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indecomposable projective modules
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class functions
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0.8691089
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0.86776227
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0.8569978
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0.85422474
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0.84920335
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