Interferons
发表于 2025-3-27 00:47:03
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禁止
发表于 2025-3-27 01:21:40
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奇思怪想
发表于 2025-3-27 06:35:55
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蜡烛
发表于 2025-3-27 11:17:05
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傲慢物
发表于 2025-3-27 13:55:45
Difference equations in several variables,equations with constant coefficients. The method is based on the simple fact that varieties in .(ℤ.) are exactly the solution spaces of such systems of equations. In the case . = 1 the situation reduces to the classical theory of linear homogeneous difference equations with constant coefficients, as
小鹿
发表于 2025-3-27 19:54:58
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粘
发表于 2025-3-27 22:36:42
Spectral analysis and synthesis on multivariate polynomial hypergroups,bles. If for any nonnegative integer . the symbol . denotes the set of all elements . in . for which the degree of . is not greater than ., then we suppose that the polynomials . with . in . form a basis for all polynomials of degree not greater than ..
无可非议
发表于 2025-3-28 02:24:59
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好色
发表于 2025-3-28 08:30:14
10楼
生锈
发表于 2025-3-28 11:16:34
10楼