Semenov, V. V.; Apostol, R. Y.; Vojtova, T. A. A variant of Deville-Godefroy-Zizler principle for vector optimization. (Ukrainian. English summary) Zbl 1199.49028 Visn., Ser. Fiz.-Mat. Nauky, Kyïv. Univ. Im. Tarasa Shevchenka 2009, No. 1, 145-148 (2009). Summary: A new variant of Deville-Godefroy-Zizler variational principle for vector optimization and \(\sigma\)-porosity of a set of ill-posed problems theorem is proved. MSC: 49J40 Variational inequalities Keywords:Baire category; porosity; vector optimization; variational principle PDFBibTeX XMLCite \textit{V. V. Semenov} et al., Visn., Ser. Fiz.-Mat. Nauky, Kyïv. Univ. Im. Tarasa Shevchenka 2009, No. 1, 145--148 (2009; Zbl 1199.49028)