%0 Journal Article %A Fernández-Rañada, Antonio %T On the S-matrix of highly absorptive resonant waves: the πN S_(31) wave %D 1968 %@ 0369-3546 %U https://hdl.handle.net/20.500.14352/64924 %X It is shown that theS-matrix of a highly absorptive resonant wave is dominated by a factor called outer factor. As an application an analytic expression for πN S-matrix in S_(31) wave is found. %~