51. Annihilating properties of ideals generated by coefficients of polynomials and power series.
- Author
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Kim, Nam Kyun, Lee, Yang, and Ziembowski, Michał
- Subjects
- *
POWER series , *POLYNOMIALS , *IDEALS (Algebra) , *POLYNOMIAL rings - Abstract
In this paper, we study the annihilating properties of ideals generated by coefficients of polynomials and power series which satisfy a structural equation. We first show that if f (x) R g (x) = 0 for polynomials f (x) = ∑ i = 0 m a i x i , g (x) = ∑ j = 0 m b j x j over any ring R , then for any i , j , there exist positive integers s (i , j) and t (i , j) such that a i 1 R a i 2 R ⋯ a i s (i , j) R b j = 0 and a i R b j 1 R b j 2 R ⋯ R b j t (i , j) = 0 , whenever i 1 , i 2 , ... , i s (i , j) ≤ i and j 1 , j 2 , ... , j t (i , j) ≤ j. Next we prove that if f (x) R g (x) = 0 for power series f (x) = ∑ i = 0 ∞ a i x i , g (x) = ∑ j = 0 ∞ b j x j over any ring R , then for any i , j , there exist positive integers s (i , j) and t (i , j) such that a i s (i , j) R ⋯ R a i 2 R a i 1 R b j 1 R b j 2 R ⋯ R b j t (i , j) = 0 when ∑ p = 1 s (i , j) i p + ∑ q = 1 t (i , j) j q < (s (i , j) + 1) (t (i , j) + 1) (i + 1) (j + 1) and i p ≤ i , j q ≤ j for each p , q. [ABSTRACT FROM AUTHOR]
- Published
- 2022
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