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arXiv math/0508159math.NTmath.CO
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组合同余与$ψ$-算子

Combinatorial Congruences and $ψ$-Operators

Daqing Wan

摘要:

$(ϕ, Γ)$-模的$ψ$-算子在通过Fontaine大环研究Iwasawa理论中起着重要的作用。本文证明了分圆情形下$ψ$-算子的几个精确估计。这些估计直接意味着许多尖锐的$p$-adic组合同余,其中之一扩展了Fleck(1913)和Weisman(1977)的经典同余。

英文摘要:

The $ψ$-operator for $(ϕ, Γ)$-modules plays an important role in the study of Iwasawa theory via Fontaine's big rings. In this note, we prove several sharp estimates for the $ψ$-operator in the cyclotomic case. These estimates immediately imply a number of sharp $p$-adic combinatorial congruences, one of which extends the classical congruences of Fleck (1913) and Weisman (1977).

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