Je nalezena nová nutná a postačující podmínka platnosti Hardyho nerovnosti v případě - nekonečno < q = .LE. p < 0 je odvozena i jednoduchá, ale pouze postačující podmínka. (cs)
A new necessary and sufficient condition for the validity of the reverse Hardy inequality in the case - .INFIN. < q = .LE. p < 0 is found. A simple, but only sufficient condition is derived.
A new necessary and sufficient condition for the validity of the reverse Hardy inequality in the case - .INFIN. < q = .LE. p < 0 is found. A simple, but only sufficient condition is derived. (en)