Section: Software

YALTA

Participants : David Avanessoff [correspondent] , Catherine Bonnet, André Fioravanti [UNICAMP] .

The YALTA package is dedicated to the study of classical and fractional systems with delay in the frequency-domain. Its objective is to provide basic but important information such as, for instance, the position of the neutral chains of poles and unstable poles, as well as the root locus with respect to the delay of the system. The corresponding algorithms are based on recent theoretical results (see, for instance, [84] and [95] ) and on classical continuation methods exploiting the particularities of the problem [96] , [14] . We have included this year a Pade2 approximation scheme as well as $H_{\infty }$-stability properties. The package is freely available at http://team.inria.fr/disco/fr/software/ .