Powers of Rational Matrices
Powers of Rational Matrices
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有理矩阵的幂
DOI:
10.1080/00029890.2021.1949220
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发表时间:
2022
期刊:
影响因子:
--
通讯作者:
Sarma, Kuldeep
中科院分区:
文献类型:
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作者:
Garcia, Stephan Ramon;Horn, Roger A.;Luca, Florian;Sarma, Kuldeep
Mn (Z), and hence mAk= CBk (adj C)∈ Mn (Z), for all k∈ Z. There are (m2) n2= m2n2 elements in Mn (Z/m2Z), so the pigeonhole principle yields positive integers j> k such that mAj≡ mAk (mod m2). Thus, there is an X∈ Mn (Z) such that mAj= mAk+ m2X. Therefore, Aj− k= I+(mA− k) X∈ Mn (Z), in which 1≤ j− k≤ m2n2. Let r= j− k to complete the proof.