Lasiecka, I.; Triggiani, R. Finite rank, relatively bounded perturbations of semigroup generators. (English) Zbl 0602.47029 Ann. Sc. Norm. Super. Pisa, Cl. Sci., IV. Ser. 12, 641-668 (1985). MSC: 47D03 35L10 PDFBibTeX XMLCite \textit{I. Lasiecka} and \textit{R. Triggiani}, Ann. Sc. Norm. Super. Pisa, Cl. Sci., IV. Ser. 12, 641--668 (1985; Zbl 0602.47029) Full Text: Numdam EuDML
Desch, W.; Schappacher, W. On relatively bounded perturbations of linear \(C_ 0\)-semigroups. (English) Zbl 0556.47022 Ann. Sc. Norm. Super. Pisa, Cl. Sci., IV. Ser. 11, 327-341 (1984). MSC: 47D03 34G10 PDFBibTeX XMLCite \textit{W. Desch} and \textit{W. Schappacher}, Ann. Sc. Norm. Super. Pisa, Cl. Sci., IV. Ser. 11, 327--341 (1984; Zbl 0556.47022) Full Text: Numdam EuDML
Greiner, G.; Nagel, R. On the stability of strongly continuous semigroups of positive operators on \(L_ 2\)(mu). (English) Zbl 0527.47027 Ann. Sc. Norm. Super. Pisa, Cl. Sci., IV. Ser. 10, 257-262 (1983). MSC: 47D03 47B60 34K20 PDFBibTeX XMLCite \textit{G. Greiner} and \textit{R. Nagel}, Ann. Sc. Norm. Super. Pisa, Cl. Sci., IV. Ser. 10, 257--262 (1983; Zbl 0527.47027) Full Text: Numdam EuDML