Mathematical Sciences Classification System
11Txx - Finite fields and commutative rings (number-theoretic aspects)
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11T06Polynomials
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11T22Cyclotomy
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11T23Exponential sums
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11T24Other character sums and Gauss sums
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11T30Structure theory
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11T55Arithmetic theory of polynomial rings over finite fields
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11T60Finite upper half-planes
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11T71Algebraic coding theory; cryptography
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11T99None of the above, but in this section