Are the optimum problems in structural design well posed? W. VelteP. Villaggio OriginalPaper Pages: 199 - 211
On the instability of equilibrium when the potential has a non-strict local minimum M. LaloyK. Peiffer OriginalPaper Pages: 213 - 222
Convergence of biorthogonal series of biharmonic eigenfunctions by the method of titchmarsh D. D. JosephL. D. SturgesW. H. Warner OriginalPaper Pages: 223 - 274
Quelques relations fondamentales entre solutions de l'équation biconfluente de heun François Batola OriginalPaper Pages: 275 - 291