Blurrings Of The J-Function

Blurrings Of The J-Function
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J 功能的模糊

DOI:
10.1093/qmath/haab037
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发表时间:
2022
期刊:
The Quarterly Journal of Mathematics
影响因子:
--
通讯作者:
Aslanyan V
Aslanyan V
中科院分区:
--
文献类型:
--
作者:
Aslanyan V

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受模糊指数函数思想的启发,我们定义了j-函数及其导数的模糊变体,其中模糊是由的一个子群的作用给出的。对于稠密的子群(在复拓扑中),我们证明了一个存在闭性定理,该定理表明,所有关于相应的含导数模糊的方程组都有复解,除非有函数超越的原因。对于不含导数的j-函数,我们证明了一个更强的定理,即对由稠密但不一定在其中的子群的作用而模糊的存在闭性.我们还证明了对于适当选择的可数可数闭子域,由模型扩充的j-函数的模糊谓词在理论上是驯服的,特别是ω-稳定的和拟极小的.
Inspired by the idea of blurring the exponential function, we define blurred variants of thej-function and its derivatives, where blurring is given by the action of a subgroup of. For a dense subgroup (in the complex topology) we prove an Existential Closedness theorem which states that all systems of equations in terms of the corresponding blurredjwith derivatives have complex solutions, except where there is a functional transcendence reason why they should not. For thej-function without derivatives we prove a stronger theorem, namely, Existential Closedness forjblurred by the action of a subgroup which is dense in, but not necessarily in.We also show that for a suitably chosen countable algebraically closed subfield, the complex field augmented with a predicate for the blurring of thej-function byis model theoretically tame, in particular,ω-stable and quasiminimal.
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