Brauer groups are not characterized by Ulm invariants (Q1087589)
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scientific article; zbMATH DE number 3987411
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Brauer groups are not characterized by Ulm invariants |
scientific article; zbMATH DE number 3987411 |
Statements
Brauer groups are not characterized by Ulm invariants (English)
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1986
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The authors show that Ulm's invariants do not determine Brauer groups or character groups of uncountable fields. They use ultraproducts of torsion groups as a tool. They give a few examples which nicely illustrate the results.
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Ulm invariants
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Brauer groups
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uncountable fields
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