Let p be an odd prime and let a,m ∈ Z with a 】 0 and p ︱ m.In this paper we determinep ∑k=0 pa-1(2k k=d)/mk mod p2 for......

在差分集中引入了特殊态射，证明了由特殊态射定义的等价类所作成的商还是差分集．...

Recently, Williams [1] and then Yao, Xia and Jin [2] discovered explicit formulas for the coefficients of the Fourier se......

Soil microbes play critical roles in soil biogeochemistry, soil biological health and crop productivity. The current stu......