Rigidity for the four gradient problem
We prove a general rigidity result for the maximal possible number of gradients by showing that any lipschitz function using four pairwise not rank-one connected gradients is necessarily affine. This exhibits an interesting difference between rigidity features of approximate and exact solutions of d...
| Main Authors: | , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2002
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