Abstract
We consider the problem min Σi=1m f i(xi) s.t. x ε S, where xi are multidimensional subvectors of x, fi are convex functions, and S is a subspace. Monotropic programming, extensively studied by Rockafellar, is the special case where the subvectors xi are the scalar components of x. We show a strong duality result that parallels Rockafellar's result for monotropic programming, and contains other known and new results as special cases. The proof is based on the use of ε-subdifferentials and the ε-descent method, which is used here as an analytical vehicle.
Original language | English (US) |
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Pages (from-to) | 209-225 |
Number of pages | 17 |
Journal | Journal of Optimization Theory and Applications |
Volume | 139 |
Issue number | 2 |
DOIs | |
State | Published - Nov 2008 |
Externally published | Yes |
Keywords
- Duality
- Monotropic
- ε-descent
- ε-subdifferential
ASJC Scopus subject areas
- Management Science and Operations Research
- Control and Optimization
- Applied Mathematics