Algebraic independence of the partial derivatives of certain functions with arbitrary number of variables

被引:0
|
作者
Ide, Haruki [1 ]
Tanaka, Taka-aki [1 ]
机构
[1] Keio Univ, Dept Math, 3-14-1 Hiyoshi,Kohoku Ku, Yokohama 2238522, Japan
来源
INDAGATIONES MATHEMATICAE-NEW SERIES | 2023年 / 34卷 / 06期
关键词
Algebraic independence; Infinite products; Mahler's method; MAHLER FUNCTIONS; POWER-SERIES; VALUES;
D O I
10.1016/j.indag.2023.07.003
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We construct a complex entire function with arbitrary number of variables which has the following property: The infinite set consisting of all the values of all its partial derivatives of any orders at all algebraic points, including zero components, is algebraically independent. In Section 2 of this paper, we develop a technique involving linear isomorphisms and infinite products to replace the algebraic independence of the values of functions in question with that of functions easier to deal with. In Sections 2 and 3, using the technique together with Mahler's method, we can reduce the algebraic independence of the infinite set mentioned above to the linear independence of certain rational functions modulo the rational function field of many variables. The latter one is solved by the discussions involving a certain valuation and a generic point in Sections 3 and 4.(c) 2023 Royal Dutch Mathematical Society (KWG). Published by Elsevier B.V. All rights reserved.
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页码:1397 / 1418
页数:22
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