1)nonabsolutely convergent series,非绝对收敛级数2)absolutely convergent series,绝对收敛级数3)absolutely convergent power series,绝对收敛幂级数4)uniformly absolutely convergent series,一致绝对收敛级数5)multiplication of three absolutely convergent series in their convergence domain,收敛域内三个绝对收敛级数相乘法6)non-convergent series,非收敛级数