Power series expansion;
Dissection;
Vanishing coefficients;
Periodicity of signs of coefficients;
CONTINUED-FRACTION;
COEFFICIENTS;
D O I:
10.1007/s11139-019-00200-w
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
In this paper, we establish 5-dissections of two infinite products and thereby prove that their q-series coefficients vanish for two arithmetic progressions. Moreover, our results also imply that the signs of coefficients of these infinite products are periodic with period 5 from n > 1.