SEX-LINKED GENE

The Sex-linked inheritance role was tested and verified and the interaction between B/b and Y/y loci was explained by means of some crossing testes as follows:(1)white feather×Longcheng (maroon feather);(2)yellow feather×Lo.

通过以下几种杂交实验 :(1)白羽系×龙城系 ;(2 )黄羽系×龙城系 ;(3)白羽系×黄羽系 ,可以验证伴性遗传规律 ,说明B b和Y y基因间的互作关系。

Self-adjointness of Products of m Differential Operators in the Hilbert Space L~2[a,b];

Hilbert空间L~2[a,b]上m个微分算子积的自伴性

In this paper,we proved the self-adjointness of a class of differential operators with transferming boundary conditions in a new Hilbert space.

微分算子谱的研究,在热力学中具有很广泛的应用,本文构建了一个新的H ilbert空间,并在这个空间上讨论了一类具有转移边条件的内部奇异微分算子的自伴性。

It consists of four parts: (1) Ordinary differential operators generated by quasi-derivatives; (2) Complete analytic description of self-adjointness of ordinary differential operators; (3) Sturm-Liouville problems with weighted functions (including right-definite, left-definite and non-definite cases); (4) Volterra-Stieltjes integral-differential operators.

综合评述了Sturm-Liouville理论在近 30年内的若干新发展,主要内容包括如下4个方面:1 由拟导数所生成的微分算子;2 常微分算子自伴性的完全解析描述;3 带权函数的Sturm-Liouville问题(包括右定、左定和不定3种情形);4 Volterra-Stieltjes积分微分算子。