Contents of Volume 21, Number 4

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Witt groups of Grassmann varieties

Paul Balmer and Baptiste Calmès.
J. Algebraic Geom. 21 (2012), 601-642
Abstract, references and article information
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Effective models of group schemes

Matthieu Romagny.
J. Algebraic Geom. 21 (2012), 643-682
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Bertini theorems and Lefschetz pencils over discrete valuation rings, with applications to higher class field theory

Uwe Jannsen and Shuji Saito.
J. Algebraic Geom. 21 (2012), 683-705
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$R$-equivalence on low degree complete intersections

Alena Pirutka.
J. Algebraic Geom. 21 (2012), 707-719
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On a conjecture of Beltrametti and Sommese

Andreas Höring.
J. Algebraic Geom. 21 (2012), 721-751
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Weak approximation for low degree Del Pezzo surfaces

Chenyang Xu.
J. Algebraic Geom. 21 (2012), 753-767
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Counter-examples of high Clifford index to Prym-Torelli

E. Izadi and H. Lange.
J. Algebraic Geom. 21 (2012), 769-787
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On algebraic representatives of topological types of analytic hypersurface germs

Javier Fernández de Bobadilla.
J. Algebraic Geom. 21 (2012), 789-797
Abstract, references and article information
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