Abels, Helmut; Grubb, Gerd; Wood, Ian Geoffrey Extension theory and Kreĭn-type resolvent formulas for nonsmooth boundary value problems. (English) Zbl 1312.47019 J. Funct. Anal. 266, No. 7, 4037-4100 (2014). Reviewer: Leszek Gasiński (Kraków) MSC: 47A57 35J25 PDFBibTeX XMLCite \textit{H. Abels} et al., J. Funct. Anal. 266, No. 7, 4037--4100 (2014; Zbl 1312.47019) Full Text: DOI arXiv
Grubb, Gerd Spectral asymptotics for nonsmooth singular Green operators. (English) Zbl 1290.35057 Commun. Partial Differ. Equations 39, No. 3, 530-573 (2014). Reviewer: Dian K. Palagachev (Bari) MSC: 35J25 35P20 35S15 47A10 47G30 PDFBibTeX XMLCite \textit{G. Grubb}, Commun. Partial Differ. Equations 39, No. 3, 530--573 (2014; Zbl 1290.35057) Full Text: DOI arXiv
Grubb, Gerd Kreĭn-like extensions and the lower boundedness problem for elliptic operators. (English) Zbl 1242.47041 J. Differ. Equations 252, No. 2, 852-885 (2012). Reviewer: Luis Filipe Pinheiro de Castro (Aveiro) MSC: 47G30 35J25 35P05 35S05 47B25 47F05 PDFBibTeX XMLCite \textit{G. Grubb}, J. Differ. Equations 252, No. 2, 852--885 (2012; Zbl 1242.47041) Full Text: DOI arXiv
Grubb, Gerd Spectral asymptotics for Robin problems with a discontinuous coefficient. (English) Zbl 1223.35146 J. Spectr. Theory 1, No. 2, 155-177 (2011). Reviewer: Vicenţiu D. Rădulescu (Craiova) MSC: 35J40 47G30 58C40 58J40 PDFBibTeX XMLCite \textit{G. Grubb}, J. Spectr. Theory 1, No. 2, 155--177 (2011; Zbl 1223.35146) Full Text: DOI arXiv
Grubb, Gerd The mixed boundary value problem, Krein resolvent formulas and spectral asymptotic estimates. (English) Zbl 1223.47050 J. Math. Anal. Appl. 382, No. 1, 339-363 (2011). MSC: 47F05 47A20 35P20 35J25 PDFBibTeX XMLCite \textit{G. Grubb}, J. Math. Anal. Appl. 382, No. 1, 339--363 (2011; Zbl 1223.47050) Full Text: DOI arXiv
Grubb, Gerd Perturbation of essential spectra of exterior elliptic problems. (English) Zbl 1208.35094 Appl. Anal. 90, No. 1-2, 103-123 (2011). MSC: 35P20 35J40 35S15 47A10 PDFBibTeX XMLCite \textit{G. Grubb}, Appl. Anal. 90, No. 1--2, 103--123 (2011; Zbl 1208.35094) Full Text: DOI arXiv EuDML