The numbers {mvar|p} and {mvar|q} above are said to be Hölder conjugates of each other. The special case {math|p {{=} q {=} 2}} gives a form of the Cauchy–Schwarz inequality. Hölder`s inequality holds even if {math|{{!!}fg{!!}1}} is infinite, the right-hand side also being infinite in that case. Conversely, if {mvar|f} is in {math|Lp(....