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Square classes of a real closed field

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#number-theory #field-theory #galois-cohomology
103
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Surjectivity of the inv map in Global class field theory

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#number-theory #class-field-theory #galois-cohomology
150
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$H^1(G, \mathbb{Z}/p \mathbb{Z})$ and linearly independent elements in open subgroups.

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#group-cohomology #profinite-groups #galois-cohomology
276
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First cohomology group of the $n$-torsion of an elliptic curve

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#algebraic-number-theory #elliptic-curves #galois-cohomology #galois-extensions
115
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Surjectivity of map of étale sheaves

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#algebraic-geometry #arithmetic-geometry #etale-cohomology #galois-cohomology
460
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Hilbert 90 and K-forms

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#galois-theory #galois-representations #galois-cohomology
269
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How can a point on an elliptic curve be considered a galois cohomology class?

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#number-theory #homology-cohomology #elliptic-curves #group-cohomology #galois-cohomology
273
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Tate Cohomology of Squares

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#algebraic-number-theory #p-adic-number-theory #group-cohomology #local-field #galois-cohomology
83
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Galois extension of exponent $mp^r$ in characteristic $p$

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#galois-theory #positive-characteristic #galois-cohomology #kummer-theory
1.2k
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What should one know before learning galois cohomology

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#reference-request #soft-question #advice #galois-cohomology
97
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When does a number field have $p$-rank greater than $n$?

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#number-theory #algebraic-number-theory #class-field-theory #galois-cohomology
892
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Computing étale cohomology group $H^1( \text{Spec}(k), \mu_n)$ and $H^1( \text{Spec}(k), \underline{\Bbb{Z}/\mathord{n \Bbb{Z}}})$

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#etale-cohomology #galois-cohomology
308
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Vanishing of second Galois cohomology group

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#algebraic-number-theory #class-field-theory #local-field #galois-cohomology
916
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About the definition of l-adic Tate-twist

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#reference-request #algebraic-number-theory #etale-cohomology #galois-cohomology
439
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Hilbert's theorem 90 for $p$-adic topology

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#p-adic-number-theory #galois-cohomology

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