摘要： The bilinear from α(·,·)on the real Hilbert space is said to be coercive if there is a α>0) such that
α(v,v) ≥ α‖v‖H v∈H. (0.1).
聂仪一, 陈少白. ABOUT SOME NOTES IN THE VARIATIONAL PRINCIPLE[J]. 数学物理学报(英文版), 1983, 3(1): 85-93.
Nie Yiyi, Chen Shaobei. ABOUT SOME NOTES IN THE VARIATIONAL PRINCIPLE[J]. Acta mathematica scientia,Series B, 1983, 3(1): 85-93.