Data-driven dispersive analysis of the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>?</mml:mi><mml:mi>?</mml:mi></mml:math> and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>?</mml:mi><mml:mi>K</mml:mi></mml:math> scattering

We present a data-driven analysis of the resonant $S$-wave $\ensuremath{\pi}\ensuremath{\pi}\ensuremath{\rightarrow}\ensuremath{\pi}\ensuremath{\pi}$ and $\ensuremath{\pi}K\ensuremath{\rightarrow}\ensuremath{\pi}K$ reactions using partial-wave dispersion relation. The contributions from left-hand cuts are accounted for Taylor expansion in suitably constructed conformal variable. fits performed to experimental lattice data as well Roy analyses. For $\ensuremath{\pi}\ensuremath{\pi}$ scattering we both single- coupled-channel by including additionally $K\overline{K}$ channel. latter central result is Omn\`es matrix, which consistent with most recent Roy-Steiner results on $\ensuremath{\pi}\ensuremath{\pi}\ensuremath{\rightarrow}K\overline{K}$, respectively. By analytic continuation complex plane, found poles associated lightest scalar resonances $\ensuremath{\sigma}/{f}_{0}(500)$, ${f}_{0}(980)$, $\ensuremath{\kappa}/{K}_{0}^{*}(700)$ physical pion mass value case also unphysical values.