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# Questions

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876
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### A good reference to grok hypergeometric functions?

jul 10 at 16:33 PaPiro 1,3461926

8
13
4
664
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### Why are lacunary series so badly behaved?

mar 5 12 at 18:53 Pietro Majer 19.7k12469

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2
541
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### Is zero a hydrogen eigenvalue?

oct 2 at 15:52 Emilio Pisanty 70929

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1
338
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### Pochhammer symbol of a differential, and hypergeometric polynomials

sep 19 at 2:23 Tom Copeland 805520

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186
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jun 25 at 0:22 Emilio Pisanty 70929

3
2
1
181
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### The Paley-Wiener theorem and exponential decay.

feb 23 at 4:52 Alexandre Eremenko 10.6k12439

2
1
161
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### Partitions of an interval

apr 15 12 at 3:14 ARupinski 3,416725

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112
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### Subspace where an operator is positive

feb 25 12 at 16:40 Emilio Pisanty 70929

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102
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### Analytic continuation of instantaneous eigenstates of a time-dependent hamiltonian

aug 17 at 19:10 Robert Israel 10.8k822

2
0
87
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### Unicity of a vector space frame’s dual frame

jun 6 at 20:54 Emilio Pisanty 70929