The method of counting for circular ring objects in frequency domain is proposed.
研究了用频域法实现圆环形目标物计数的方法。
2
We give a new characterization of weakly primary rings with identity and conditions that a weakly primary domain is a valuation ring or quasi-valuation ring.
本文给出了有单位元的弱准素环的一个新刻划并给出了弱准素整环是拟赋值环或赋值环的条件。
3
Introduce the new concepts of weak domain, weak principal ideal ring and weak Euclidean ring.