The Number of 2*2 Idempotent Matrices in Residue Classes Ring Z_p
Xiong Jiao · Journal of Gansu Lianhe University · 2010
Let Zp be a residue classes ring(p is prime),this article uses equations,the methods of analysis,the theory of number and the knowledge of combination,the number of 2×2 idempotent matrices in residue classes ring Zp were researched,and compute the number is {p2+p+2(p2),4(p=2)