| 1. | The gaussian curvature of no . 3 coal seam in qinshui basin is calculated
计算了沁水盆地3号煤层的高斯曲率。 |
| 2. | Application of gaussian curvature method in forecasting natural fracture zones in coal seam
运用高斯曲率法预测煤层天然裂隙发育区 |
| 3. | The way and principle of gaussian curvature method for forecasting natural fracture zones in coal seam are discussed
摘要论述了高斯曲率法预测煤层天然裂隙发育区的基本原理和方法。 |
| 4. | It is concluded that the gaussian curvature method can reflect the shape variation of coal seam curvature , and the method is effective to forecast natural fracture zones in coal seam
分析表明，高斯曲率法可相对真实地反映煤层曲面形态变化，用该方法预测煤层天然裂隙发育区是切实可行的。 |
| 5. | Based on corresponding relationship of gaussian curvature to macrofractures in coal seam and permeability , the classification criteria of gaussian curvature method for forecasting natural fracture zones is put forward
在分析高斯曲率与试井渗透率、煤层宏观裂隙的对应关系的基础上，提出了高斯曲率法的裂隙发育区分类标准。 |
| 6. | And then , in this part , following the idea of topping [ 51 , 52 ] , we will show an isoperimetric inequality ( 6 . 3 . 1 ) on surfaces of non - positive gaussian curvature by means of the curve shortening flow on surfaces , this inequality can be considered as a generalization of the banchoff - pohl inequality in the euclidean plane
然后，仿照topping [ 51 ]和[ 52 ]利用平均曲率流证明等周不等式的想法，我们利用曲面上的曲线缩短流在gauss曲率非正的曲面上证明了一个等周不等式( 6 |
| 7. | On the other hand , the conformal deformation ' s problem is to find a metric on h2 ( - 1 ) , conformal to g , with the given function k as its gaussian curvature , that is , it is important for us to study the solvability of the conformal gauss curvature equation in geometry analysis . the problem that the conformal gauss curvature equation may have a solution for every nonegative holder continuous function k ( x ) is also an open problem
) = e ~ ( 2u ) g使k是( ? )的高斯曲率，即共形高斯曲率方程的可解性研究是几何分析中的一个重要问题。当预定的函数k取正值时，共形高斯曲率方程解的存在性命题作为一个猜测至今未得到解决。 |
