由环构造域的另一充要条件

ANOTHER NECESSARY AND SUFFICIENT CONDITION FOR CONSTRUCTING FIELDS BY RINGS

引入了等零因子环的概念，并对等零因子环作了一些探讨。

This paper introduces the concept of the equi zero divisor ring,discusses it to some extend,proves a necessary and sufficient condition for a residue class ring can to form a field and obtains some related results.