Strictly locally order affine complete lattices |
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Authors: | Kalle Kaarli Karin Täht |
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Institution: | (1) Department of Mathematics, Tartu University, EE2400 Tartu, Estonia |
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Abstract: | We call a latticeL strictly locally order-affine complete if, given a finite subsemilatticeS ofL
n, every functionf: S L which preserves congruences and order, is a polynomial function. The main results are the following: (1) all relatively complemented lattices are strictly locally order-affine complete; (2) a finite modular lattice is strictly locally order-affine complete if and only if it is relatively complemented. These results extend and generalize the earlier results of D. Dorninger 2] and R. Wille 9, 10]. |
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Keywords: | 06C15 08A40 |
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