摘要
若R的每个子环都是它的同态象,则称结合环R为H-环.本文给出了幂等的H-环的一些结构定理,并部分地解决了Szasz提出的问题77:“在哪些环中,每个子环都是它的同态象?”
An associative ring R is called an H—ring, if every subring of R is its homomorph. Some structure theorems of H-nng arc given and problem 77 presented by Szasz: 'In which rings is every subring an endomorphic image' is partially solved.
