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设ρ(x)是定义在[1]中的无穷可微函数,δ_n(x)定义为δ_n(x)=n~me(nx_1)…e(nx_m),x∈R~m。两个分布f和g的乘积定义为序列{fg_n}的中性极限。其中g_n=g*δ_n运用定义,给出了一些乘积结果。
Let ρ (x) be an infinitely differentiable function defined in [1]. Δ_n (x) is defined as δ_n (x) = n ~ me (nx_1) ... e (nx_m), x∈R ~ m. The product of two distributions f and g is defined as the neutral limit of the sequence {fg_n}. The definition of g_n = g * δ_n gives some product results.