He, Jihuan Modified Lagrange multiplier method and generalized variational principle in fluid mechanics. (English) Zbl 0905.76066 J. Shanghai Univ. 1, No. 2, 117-122 (1997). MSC: 76M30 49S05 PDFBibTeX XMLCite \textit{J. He}, J. Shanghai Univ. 1, No. 2, 117--122 (1997; Zbl 0905.76066) Full Text: DOI
He, Jihuan Equivalence theorem for Hellinger-Reissner and Hu-Washizu variational principles. (English) Zbl 0909.73090 J. Shanghai Univ. 1, No. 1, 36-41 (1997). MSC: 74S30 74P10 74B05 PDFBibTeX XMLCite \textit{J. He}, J. Shanghai Univ. 1, No. 1, 36--41 (1997; Zbl 0909.73090) Full Text: DOI