142

Questions
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Number of trees with n nodes and m leaves

apr 21 10 at 9:44 Douglas S. Stones 2,976●1●12●31

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Quantum mathematics?

mar 25 11 at 20:21 Adrien 2,120●1●7●12

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Infinite groups which contain all finite groups as subgroups

jan 7 12 at 18:47 Matt Brin 982●3●9

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Models of ZFC Set Theory - Getting Started

jun 27 10 at 9:37 Marc Alcobé García 979●3●13

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Origins of names of algebraic structures

apr 29 at 13:08 KConrad 17.2k●3●64●119

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Bringing Number and Graph Theory Together: A Conjecture on Prime Numbers

apr 28 10 at 15:04 Jon Awbrey 341●1●4●12

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What is Yoneda’s Lemma a generalization of?

jan 22 12 at 0:28 Anton Fetisov 655●4●8

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Spectral graph theory: Interpretability of eigenvalues and -vectors

oct 27 at 0:36 unknown (google) 1

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Kuratowski’s definition of ordered pairs

apr 25 11 at 23:04 Hans Stricker 5,392●13●39

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Number of permutations with a specified number of fixed points

feb 16 10 at 0:54 Hans Stricker 5,392●13●39

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