Variational principle for a three-point boundary value problem
- School of Fashion Technology, Zhongyuan University of Technology, No. 41 Zhongyuan Road (M), 450007 Zhengzhou, China.
- National Engineering Laboratory for Modern Silk, College of Textile and Clothing Engineering, Soochow University, 199 Ren-ai Road, 215123 Suzhou, China.
- Rieter (China) Textile Instrument Co., 1068 West Tianshan Road, 200335 Shanghai, China.
A variational principle is established for a three-point boundary value problem. The stationary condition
includes not only the governing equation but also the natural boundary conditions. The paper reveals that
not every boundary condition adopts a variational formulation, and the existence and uniqueness of the
solutions of a three-point boundary value problem can be revealed by its variational formulation.
- Variational theory
- boundary value problem
- semi-inverse method
- natural boundary condition.
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