Benn, James The coadjoint operator, conjugate points, and the stability of ideal fluids. (English) Zbl 1350.35149 Arnold Math. J. 2, No. 2, 249-266 (2016). Reviewer: Valery V. Karachik (Chelyabinsk) MSC: 35Q35 58B25 37K45 37K65 76E99 58D17 35Q05 47H99 58C99 PDFBibTeX XMLCite \textit{J. Benn}, Arnold Math. J. 2, No. 2, 249--266 (2016; Zbl 1350.35149) Full Text: DOI
Benn, James Fredholm properties of the \(L^2\) exponential map on the symplectomorphism group. (English) Zbl 1386.35318 J. Geom. Mech. 8, No. 1, 1-12 (2016). Reviewer: Jiang Xue (Beijing) MSC: 35Q05 35Q83 47H99 58C99 37K65 82D10 35Q60 PDFBibTeX XMLCite \textit{J. Benn}, J. Geom. Mech. 8, No. 1, 1--12 (2016; Zbl 1386.35318) Full Text: DOI
Benn, James Conjugate points on the symplectomorphism group. (English) Zbl 1329.35228 Ann. Global Anal. Geom. 48, No. 2, 133-147 (2015). Reviewer: Cheng He (Beijing) MSC: 35Q05 35Q35 47H99 58C40 58C99 76E99 37K65 PDFBibTeX XMLCite \textit{J. Benn}, Ann. Global Anal. Geom. 48, No. 2, 133--147 (2015; Zbl 1329.35228) Full Text: DOI