WRITHING NUMBER OF A SPACE CURVE
WRITHING NUMBER OF A SPACE CURVE
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DOI：
10.1073/pnas.68.4.815
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发表时间：
1971-01-01
影响因子：
11.1
通讯作者：
FULLER, FB
中科院分区：
文献类型：
--
作者：
FULLER, FB
定义并研究了空间曲线的几何不变量——扭动数。对于扭曲的绳索的中心曲线，扭曲数衡量的是中心曲线的盘绕减轻绳索局部扭曲的程度。这项研究起源于对超螺旋双链DNA环研究中出现的问题的回应。
A geometric invariant of a space curve, the writhing number, is defined and studied. For the central curve of a twisted cord the writhing number measures the extent to which coiling of the central curve has relieved local twisting of the cord. This study originated in response to questions that arise in the study of supercoiled double-stranded DNA rings.