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Questions
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Representation of Lie algebra sl_2.

nov 1 10 at 11:20 Sheikraisinrollbank 895●2●6

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Conjugate Matrix

sep 23 11 at 13:47 Melania 249●5

 
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What is Gelfand-Tsetlin basis for an irreducible representation of sl(n)?

jun 24 11 at 5:32 Victor Protsak 7,921●1●30●44

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Need an example of finitely generated graded algebra such that each its graded subspace has infinite dimension.

oct 17 10 at 10:20 Melania 249●5

 
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A partition problem.

sep 30 10 at 10:47 Melania 249●5

 
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How to prove recursion formulas for Stirling numbers?

oct 5 at 18:28 Ira Gessel 2,534●5●15

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What is the definition of an invariant of elliptic curve?

apr 7 11 at 19:14 Melania 249●5

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I am interested in collecting different methods of proofs that a subalgebra coincides with whole algebra.

jan 20 11 at 19:13 darij grinberg 12.8k●1●24●75

 
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What is correct name of the following construction?

dec 1 10 at 20:13 Mikael Vejdemo-Johansson 1,469●1●5●15

 
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phase portrait of system differential equations

oct 28 at 20:25 Christopher A. Wong 377●1●9

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