傅立叶分析与拉普拉斯转换。
然后将第三章的两个模型分别推广到带常利率情形，利用模型转换和拉普拉斯变换得到了生存概率满足的关系式。
Then we obtained the equations of the survival probability of two risk models with constant interest which have studied in chapter three by means of Laplace transform and change of the model.
利用拉普拉斯变换，将定解问题转换到拉普拉斯域内求解。
With Laplace transforms, the question can be solved in Laplace d.
利用基于拉普拉斯谱划分的递归二分法将电力网络进行支路切割，然后将支路切割转换为节点撕裂。
By means of Laplacian spectrum recursive bisection partitioning method, firstly the power network is partitioned into branch-cut form; then the branch-cut form is changed into node-split form.
利用基于拉普拉斯谱划分的递归二分法将电力网络进行支路切割，然后将支路切割转换为节点撕裂。
By means of Laplacian spectrum recursive bisection partitioning method, firstly the power network is partitioned into branch-cut form; then the branch-cut form is changed into node-split form.
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