| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 390174 | Fuzzy Sets and Systems | 2013 | 10 Pages |
Abstract
We clarify the problem of the existence of functions obtained as particular restrictions of the first partial derivatives of a quasi-copula and we show their role for characterizing the 2-increasing property. The question of the existence of the one-sided first partial derivatives of a copula along an affine section of the real unit square is discussed and new results and several examples are provided.
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