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单词 PadicRegulator
释义

p-adic regulator


Let K, n, r1, r2, {εn,,εr-1}, and ||||i be as in the entry regulatorMathworldPlanetmath, but with K taken to be a CM field.

Define the p-adic logarithm logp:p×p by

logp(x)=-k=1(1-x)kk

Let AK,p be the (r-1)×(r-1) matrix with general entry given by ai,j=logp||εj||i. The absolute valueMathworldPlanetmathPlanetmathPlanetmath of the determinantMathworldPlanetmath of this matrix is again independent of your choice of basis for the units and of the ordering of the embeddingsPlanetmathPlanetmath. This value is called the p-adic regulator of K, and is denoted by Rp,K, or Rp(K).

References

  • 1 L. C. Washington, Introduction to Cyclotomic FieldsMathworldPlanetmath,Springer-Verlag, New York.
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更新时间:2025/5/4 6:37:17