Multiplicity of subharmonic solutions of forced Hamiltonian systems near an equilibrium Maria Letizia Bertotti OriginalPaper Pages: 389 - 402
n-th roots of a non-negative operator. Conditions for uniqueness Celso MartÃnezMiguel Sanz OriginalPaper Pages: 403 - 417
Categories equivalent to the category of rational H-spaces Martin Arkowitz OriginalPaper Pages: 419 - 429
Characteristic classes and obstruction theory for infinite loop spaces Dominique Arlettaz OriginalPaper Pages: 431 - 443
Classification of topological types of isolated quasi-homogeneous two dimensional hypersurface singularities Yijing XuStephen S. -T. Yau OriginalPaper Pages: 445 - 469
A generalization of Baer's splitting problem on abelian groups L. Fuchs OriginalPaper Pages: 471 - 484
Functional equations for zeta functions of non-Gorenstein orders in global fields Barry Green OriginalPaper Pages: 485 - 502
