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of vanishing circles of a near-symplectic form on a 4-dimensional manifold 557 Olga Plamenevskaya, Transverse knots and Khovanov homology 571 Yuliy Baryshnikov and Vadim

Peter J. Cameron and Csaba Szabo Independence algebras 321 Rosali Brusamaretio and Jorge Morales On the second Stiefel-Whitney class.. of scaled trace forms of central simple

Deformation Techniques for Efficient Polynomial Equation Solving 70 Joos Heintz, Teresa Krick, Susana Puddu, Juan Sabia, and..

Ayman Badawi Factoring nonnil ideals into prime and invertible ideals Enrique Arrondo, Jose Carlos Sierra and Luca Ugaglia Classification ofB. n-dimensional subvarieties of G(1,

American Mathematical Society Number

Abstracted/Indexed in: Current Contents: Physical, Chemical & Earth Sciences, Mathematical Reviews, PASCAL, Science Citation Index, Zentralblatt fur

surfaces 895 Andras Nemethi Hypersurface singularities with 2-dimensional critical locus 922 Gavin Brown, Stamatis Koumandos and Kunyang Wang 0'' • ^ '° ^" c : *. some

A Non-Convex Analogue to Fenchel Duality 300 Christian Le Merdy and Bojan Magajna.. A