Then we concentrate on the construction of the discrete space of Lagrange multiplier, the space of mortar elements, and the conjugated gradient method for the related saddle point problem.

• 接着重点讨论了Lagrange乘子的近似空间 ,即粘接元 (mortarelements)空间的建立 ,以及所引起的离散鞍点问题的共轭梯度迭代解法。