搜索结果: 1-4 共查到“应用数学 genus”相关记录4条 . 查询时间(0.104 秒)
In this note, we use the Lopez-Ros deformation introduced in [9] to show that any embedded genus-one helicoid must be symmetric with respect to rotation by 180 degrees around a normal line. This part...
We prove that if positive integer p-surgery along a knot K S3 produces an L-space and it bounds a sharp 4-manifold, then the knot genus obeys the bound 2g(K) 1 pp 3p + 1:Moreo...
The strong embedding conjecture states that any 2-connected graph has a strong embedding on some surface. It implies the circuit double cover conjecture: Any 2-connected graph has a circuit double cov...
A TIGHT LOWER BOUND ON THE MAXIMUM GENUS OF 3-EDGE CONNECTED LOOPLESS GRAPHS
Maximum genus 3-edge connect
2007/12/10
It is shown that the lower bound on the maximum genus of a 3-edge connected loopless graph is at least one-third of its cycle rank. Moreover, this lower bound is tight. There are infinitely such graph...