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 ISBN 9780359959365; http://vixra.org/abs/1807.0533  | ||
Четвёртая проблема Ландау
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 (n2 + 1) = (Y+1)2 +1 = Y2+2*Y + 2= Y*(Y+2) + 2 .  | 
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 (n2 + 1) = Yk*(Yk-2) + 2 .  | 
 (2)  | 
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 { Yn | Yk*(Yk-2) < Yn < Yk2 , Yk ≥ 3} ,  | 
 (3)  | 
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 ZYcomp ({Ycomp}) = 33,3...3% ({3*Y | Y>1, 3*=YnY}) + ~13,3...3% ({5*Y5 | Y5>1, 5*Y5=Yn, Y5/3 ∉ ℕ}) + + ...+ ZYom ({Yom*Ym | Ym>1, Yom*Ym=Yn, Yom < NYn, Ym/3 ∉ ℕ,... Ym/Yo(m-1) ∉ ℕ}) < 100%,  | 
 (4)  | 
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 (5)  | 
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