Positive solutions of singular sub-linear boundary value problems for fourth-order and second-order differential equation systems.
Zhongli WeiMingchuan ZhangPublished in: Appl. Math. Comput. (2008)
Keyphrases
- boundary value problem
- differential equations
- fourth order
- partial differential equations
- numerical solution
- difference equations
- dynamical systems
- boundary conditions
- anisotropic diffusion
- image denoising
- linear systems
- noise removal
- level set
- nonlinear differential equations
- high order
- differential operators
- image processing
- higher order
- image enhancement
- numerical methods
- natural images
- variational inequalities
- nonlinear diffusion
- gaussian derivatives
- active contours
- diffusion equation
- search space
- objective function
- multiscale