A factorisation theory for generalised power series and omnific integers
A factorisation theory for generalised power series and omnific integers
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广义幂级数和全向整数的因式分解理论
DOI:
10.1016/j.aim.2024.109513
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发表时间:
2024
影响因子:
1.7
通讯作者:
L'Innocente S
中科院分区:
文献类型:
--
作者:
L'Innocente S
We prove that in every ring of generalised power series with non-positive real exponents and coefficients in a field of characteristic zero, every series admits a factorisation into finitely many irreducibles with infinite support, the number of which can be bounded in terms of the order type of the series, and a unique product, up to multiplication by a unit, of factors with finite support. We deduce analogous results for the ring of omnific integers within Conway's surreal numbers, using a suitable notion of infinite product. In turn, we solve Gonshor's conjecture that the omnific integer ω 2+ ω+ 1 is prime. We also exhibit new classes of irreducible and prime generalised power series and omnific integers, generalising previous work of Berarducci and Pitteloud.
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影响因子:
0.7
作者:
M. Zafrullah
通讯作者:
M. Zafrullah
DOI:
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发表时间:
2006
期刊:
影响因子:
--
作者:
D. Biljaković;M. Kochetov;S. Kuhlmann
通讯作者:
S. Kuhlmann
DOI:
--
发表时间:
1993
期刊:
Journal of Symbolic Logic (JSL)
影响因子:
--
作者:
M. Mourgues;J. Ressayre
通讯作者:
J. Ressayre
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
G. Brookfield;David E. Rush
通讯作者:
David E. Rush
DOI:
--
发表时间:
1986
期刊:
影响因子:
--
作者:
H. Gonshor
通讯作者:
H. Gonshor