On the number of closed extensive mappings (Q1878766)
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scientific article; zbMATH DE number 2099512
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On the number of closed extensive mappings |
scientific article; zbMATH DE number 2099512 |
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On the number of closed extensive mappings (English)
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8 September 2004
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The paper presents an estimate for the number of mappings \(\varphi\) of a finite partial order into itself satisfying the following conditions: (i) \(\varphi(x)\geq x\) for all \(x\) (extensivity) and (ii) \(\varphi(\varphi(x))=\varphi(x)\) for all \(x\) (closedness).
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partial order
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extensive mapping
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0.9029875
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0.8976944
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0.8871757
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