Behrndt, Jussi; Grubb, Gerd; Langer, Matthias; Lotoreichik, Vladimir Spectral asymptotics for resolvent differences of elliptic operators with \(\delta\) and \(\delta^{'}\)-interactions on hypersurfaces. (English) Zbl 1353.47090 J. Spectr. Theory 5, No. 4, 697-729 (2015). Reviewer: Thomas Krainer (Altoona) MSC: 47F05 35J25 35P20 47G30 81Q10 81Q15 PDFBibTeX XMLCite \textit{J. Behrndt} et al., J. Spectr. Theory 5, No. 4, 697--729 (2015; Zbl 1353.47090) 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
Gaarde, Anders; Grubb, Gerd Logarithms and sectorial projections for elliptic boundary problems. (English) Zbl 1189.35347 Math. Scand. 103, No. 2, 243-277 (2008). MSC: 35R01 58J32 35S15 47G30 58J37 58J42 PDFBibTeX XMLCite \textit{A. Gaarde} and \textit{G. Grubb}, Math. Scand. 103, No. 2, 243--277 (2008; Zbl 1189.35347) Full Text: DOI arXiv
Grubb, Gerd Analysis of invariants associated with spectral boundary problems for elliptic operators. (English) Zbl 1077.58014 Booß-Bavnbek, Bernhelm (ed.) et al., Spectral geometry of manifolds with boundary and decomposition of manifolds. Proceedings of the workshop, Roskilde, Denmark, August 6–9, 2003. Providence, RI: American Mathematical Society (AMS) (ISBN 0-8218-3536-X/pbk). Contemporary Mathematics 366, 43-64 (2005). Reviewer: Peter B. Gilkey (Eugene) MSC: 58J42 35S15 58J32 41A60 58J40 58J70 PDFBibTeX XMLCite \textit{G. Grubb}, Contemp. Math. 366, 43--64 (2005; Zbl 1077.58014) Full Text: arXiv
Grubb, Gerd; Hansen, Lars Complex powers of resolvents of pseudodifferential operators. (English) Zbl 1129.58304 Commun. Partial Differ. Equations 27, No. 11-12, 2333-2361 (2002). MSC: 58J40 35S05 47G30 58J37 PDFBibTeX XMLCite \textit{G. Grubb} and \textit{L. Hansen}, Commun. Partial Differ. Equations 27, No. 11--12, 2333--2361 (2002; Zbl 1129.58304) Full Text: DOI
Grubb, G. Poles of zeta and eta functions for perturbations of the Atiyah-Patodi-Singer problem. (English) Zbl 0976.58018 Commun. Math. Phys. 215, No. 3, 583-589 (2001). MSC: 58J37 PDFBibTeX XMLCite \textit{G. Grubb}, Commun. Math. Phys. 215, No. 3, 583--589 (2001; Zbl 0976.58018) Full Text: DOI
Grubb, Gerd Parametrized pseudodifferential operators and geometric invariants. (English) Zbl 0873.35116 Rodino, Luigi (ed.), Microlocal analysis and spectral theory. Proceedings of the NATO Advanced Study Institute, Il Ciocco, Castelvecchio Pascoli (Lucca), Italy, 23 September–3 October 1996. Dordrecht: Kluwer Academic Publishers. NATO ASI Ser., Ser. C, Math. Phys. Sci. 490, 115-164 (1997). Reviewer: V.Iftimie (Bucureşti) MSC: 35S15 35S05 47G30 PDFBibTeX XMLCite \textit{G. Grubb}, NATO ASI Ser., Ser. C, Math. Phys. Sci. 490, 115--164 (1997; Zbl 0873.35116)
Grubb, Gerd; Seeley, Robert T. Asymptotic expansions for the Atiyah-Patodi-Singer operator. (Développements asymptotiques pour l’opérateur d’Atiyah-Patodi-Singer.) (French) Zbl 0813.58059 C. R. Acad. Sci., Paris, Sér. I 317, No. 12, 1123-1126 (1993). Reviewer: P.Godin (Bruxelles) MSC: 58J37 58J32 35S05 58J40 PDFBibTeX XMLCite \textit{G. Grubb} and \textit{R. T. Seeley}, C. R. Acad. Sci., Paris, Sér. I 317, No. 12, 1123--1126 (1993; Zbl 0813.58059)
Grubb, Gerd A resolvent construction for pseudo-differential boundary value problems, with applications. (English) Zbl 0471.35064 18th Scand. Congr. Math., Proc., Aarhus 1980, Prog. Math. 11, 307-320 (1981). MSC: 35P20 35S05 35J55 35J45 PDFBibTeX XML
Grubb, Gerd; Geymonat, Giuseppe Eigenvalue asymptotics for selfadjoint elliptic mixed order systems with nonempty essential spectrum. (English) Zbl 0423.35071 Boll. Unione Mat. Ital., V. Ser., B 16, 1032-1048 (1979). MSC: 35P20 35J99 PDFBibTeX XMLCite \textit{G. Grubb} and \textit{G. Geymonat}, Boll. Unione Mat. Ital., V. Ser., B 16, 1032--1048 (1979; Zbl 0423.35071)