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Are There Differences Between the Concepts of“Permanent Establishment”and“Fixed Base”?
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作者 Marco Busia Stefano Grilli 《Belt and Road Initiative Tax Journal》 2025年第2期53-58,共6页
The article examines a recent Italian Supreme Court’s decision(No.2286,dated 31 January 2025)that addresses the interpretation and application of Art.14 of Italy-United States Treaty(signed in Washington on 25 August... The article examines a recent Italian Supreme Court’s decision(No.2286,dated 31 January 2025)that addresses the interpretation and application of Art.14 of Italy-United States Treaty(signed in Washington on 25 August 1999).The decision in question brings about a more general question concerning the meaning of“fixed base”and its relationship with the“permanent establishment”concept.Although it may be argued that differences between the concepts of“permanent establishment”and“fixed base”do exist,the presence of a physical place in the source State appears to be a key element of the two concepts.Oddly enough,though,in the decision,the Italian Supreme Court considers it an ancillary element to the“fixed base”concept. 展开更多
关键词 Decision No.2286 Italy-United States Treaty Permanent establish〓〓ment fixed base Physical place
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一种改进的Fixed-base Comb安全快速算法 被引量:1
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作者 殷新春 王圆圆 侯红祥 《小型微型计算机系统》 CSCD 北大核心 2007年第6期1080-1083,共4页
本文从分析椭圆曲线上Fixed-baseComb算法出发,根据其特点,利用牺牲乘法操作以降低求逆操作的方法,分别用2kP、2P+Q的快速算法对Fixed-baseComb算法的预计算阶段和赋值阶段进行改进,极大地提高了计算效率:在素数域上预计算阶段提高70%~... 本文从分析椭圆曲线上Fixed-baseComb算法出发,根据其特点,利用牺牲乘法操作以降低求逆操作的方法,分别用2kP、2P+Q的快速算法对Fixed-baseComb算法的预计算阶段和赋值阶段进行改进,极大地提高了计算效率:在素数域上预计算阶段提高70%~80%,而赋值阶段提高38%~43%,同时,改进算法通过对k的预处理,使得算法能够抵抗边际信道攻击. 展开更多
关键词 ECC 标量乘法 底层域运算 直接计算 fixedbase Comb算法 边际信道攻击
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