
In this paper we obtain a lower bound for those discriminants of real quadratic fields Q ( D ) \mathbb {Q}(\sqrt D ) with D = m 2 + 4 D = {m^2} + 4 and h ( D ) = 1 h(D) = 1 .
Quadratic extensions, class number, extended Richaud-Degert type, Yokoi conjecture, real quadratic field, Class numbers, class groups, discriminants
Quadratic extensions, class number, extended Richaud-Degert type, Yokoi conjecture, real quadratic field, Class numbers, class groups, discriminants
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