Mironov, A. E. Relationship between symmetries of the Tzitzéica equation and the Novikov-Veselov hierarchy. (English. Russian original) Zbl 1146.37041 Math. Notes 82, No. 4, 569-572 (2007); translation from Mat. Zametki 82, No. 4, 637-640 (2007). MSC: 37K10 37K15 37K25 47F05 53D12 PDFBibTeX XMLCite \textit{A. E. Mironov}, Math. Notes 82, No. 4, 569--572 (2007; Zbl 1146.37041); translation from Mat. Zametki 82, No. 4, 637--640 (2007) Full Text: DOI
Gao, David Yang Duality, triality and complementary extremum principles in non-convex parametric variational problems with applications. (English) Zbl 0923.49017 IMA J. Appl. Math. 61, No. 3, 199-235 (1998). MSC: 49N15 47J20 74B20 74S30 74P10 PDFBibTeX XMLCite \textit{D. Y. Gao}, IMA J. Appl. Math. 61, No. 3, 199--235 (1998; Zbl 0923.49017) Full Text: DOI
Jørgensen, Palle E. T. Quantization and deformation of Lie algebras. (English) Zbl 0823.46067 Kamran, Niky (ed.) et al., Lie algebras, cohomology, and new applications to quantum mechanics. AMS special session on Lie algebras, cohomology, and new applications to quantum mechanics, March 20-21, 1992, Southwest Missouri State University, Springfield, MO, USA. Providence, RI: American Mathematical Society. Contemp. Math. 160, 141-149 (1994). MSC: 46L87 46L55 17B15 22D35 47A67 22E70 81R50 PDFBibTeX XMLCite \textit{P. E. T. Jørgensen}, Contemp. Math. 160, 141--149 (1994; Zbl 0823.46067)
Rabinowitz, Paul H. Minimax methods in critical point theory with applications to differential equations. (English) Zbl 0609.58002 Regional Conference Series in Mathematics 65. Providence, RI: American Mathematical Society (AMS) (ISBN 0-8218-0715-3). viii, 100 p. (1986). Reviewer: B.Schomburg MSC: 58-02 58E05 58E07 35J60 47J05 37J99 PDFBibTeX XMLCite \textit{P. H. Rabinowitz}, Minimax methods in critical point theory with applications to differential equations. Providence, RI: American Mathematical Society (AMS) (1986; Zbl 0609.58002)
Sawyers, Kenneth N. Material stability and bifurcation in finite elasticity. (English) Zbl 0392.73036 Finite Elasticity, Winter ann. Meet. ASME, Atlanta / Georgia 1977, AMD - Vol. 27, 103-123 (1977). MSC: 74B20 47J05 47H99 PDFBibTeX XML