On some knot energies involving Menger curvature
On some knot energies involving Menger curvature
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关于涉及门格尔曲率的一些结能量
DOI:
10.1016/j.topol.2013.05.022
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发表时间:
2012
影响因子:
0.6
通讯作者:
Heiko von der Mosel
中科院分区:
文献类型:
--
作者:
Marta Szumanska;Paweł Strzelecki;Heiko von der Mosel
We investigate knot-theoretic properties of geometrically defined curvature energies such as integral Menger curvature. Elementary radii-functions, such as the circumradius of three points, generate a family of knot energies guaranteeing self-avoidance and a varying degree of higher regularity of finite energy curves. All of these energies turn out to be charge, minimizable in given isotopy classes, tight and strong. Almost all distinguish between knots and unknots, and some of them can be shown to be uniquely minimized by round circles. Bounds on the stick number and the average crossing number, some non-trivial global lower bounds, and unique minimization by circles upon compaction complete the picture.
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DOI:
--
发表时间:
--
期刊:
影响因子:
--
作者:
K. Menger
通讯作者:
K. Menger
影响因子:
1.3
作者:
C. Bandle;A. Wagner
通讯作者:
A. Wagner
影响因子:
1.6
作者:
J. Banavar;Oscar Gonzalez;J. Maddocks;A. Maritan
通讯作者:
A. Maritan
影响因子:
4.9
作者:
FREEDMAN, MH;HE, ZX;WANG, ZH
通讯作者:
WANG, ZH
DOI:
--
发表时间:
2000
期刊:
影响因子:
--
作者:
Yong Lin;P. Mattila
通讯作者:
P. Mattila