Kleene star
unary operation on sets of strings, used in regular expressions for "zero or more repetitions"
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Kleene star
Summary
Kleene star is an unary operation[1]. It draws 142 Wikipedia views per month (unary_operation category, ranking #5 of 9).[2]
Key Facts
- Kleene star's instance of is recorded as unary operation[3].
- Kleene star's instance of is recorded as idempotent function[4].
- Kleene star's instance of is recorded as mathematical concept[5].
- Kleene star's instance of is recorded as set operation[6].
- Stephen Cole Kleene is named after Kleene star[7].
- Kleene star's Freebase ID is recorded as /m/048gg[8].
- Kleene star's notation is recorded as asterisk[9].
- Kleene star's facet of is recorded as regular expression[10].
- Kleene star's Stack Exchange tag is recorded as https://stackoverflow.com/tags/kleene-star[11].
- Kleene star's has characteristic is recorded as idempotence[12].
- Kleene star's definition domain is recorded as set[13].
- Kleene star's different from is recorded as Kleene plus[14].
- Kleene star's different from is recorded as wildcard character[15].
- Kleene star's defining formula is recorded as V^ = \bigcup_{i \in \mathbb{Z}_ }V^i \text{; where } V^0 = \epsilon \text{ and } V^i = V^{i - 1} \mathbin{^\frown} V[16].
- Kleene star's defining formula is recorded as V^* = {\epsilon} \cup V^+[17].
- Kleene star's maintained by WikiProject is recorded as WikiProject Mathematics[18].
- Kleene star's Microsoft Academic ID is recorded as 141571987[19].
- Kleene star's in defining formula is recorded as ^*[20].
- Kleene star's in defining formula is recorded as \mathbb{Z}_*[21].
- Kleene star's in defining formula is recorded as \epsilon[22].
- Kleene star's in defining formula is recorded as \mathbin{^\frown}[23].
- Kleene star's in defining formula is recorded as ^+[24].
- Kleene star's PlanetMath ID is recorded as KleeneStar[25].
- Kleene star's Encyclopedia of China is recorded as 29393[26].
Why It Matters
Kleene star draws 142 Wikipedia views per month (unary_operation category, ranking #5 of 9).[2] It has Wikipedia articles in 22 language editions, a strong signal of global cultural recognition.[27] It is known by 40 alternative names across languages and contexts.[28]