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On the irrationality measure of $$\pi^2$$. (English. Russian original) Zbl 1286.11111
Russ. Math. Surv. 68, No. 6, 1133-1135 (2013); translation from Usp. Mat. Nauk 68, No. 6, 171-172 (2013).
##### MSC:
 11J82 Measures of irrationality and of transcendence 11J72 Irrationality; linear independence over a field 11Y60 Evaluation of number-theoretic constants 33C20 Generalized hypergeometric series, $${}_pF_q$$ 33C60 Hypergeometric integrals and functions defined by them ($$E$$, $$G$$, $$H$$ and $$I$$ functions)
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