Výsledky vyhledávání - "Berger, Robert W."

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Behavior of the Torsion of the Differential Module of an Algebroid Curve under Quadratic Transformations

Autor: Berger, Robert W.

We study the difference between the lengths of the torsion of the differential modules of the local ring R of an algebroid curve and its first quadratic transform. The conjecture is that this difference should be positive if R is not regular. This is

Externí odkaz: http://arxiv.org/abs/math/9805044

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Various Notions of Associated Prime Ideals

Autor: Berger, Robert W.

Three notions of associated prime ideals, which are equivalent in the noetherian case but differ in the non notherian case, are discussed. Examples illustrate the scope of the notions.
Comment: 27 pages, AMS-LaTeX 1.1

Externí odkaz: http://arxiv.org/abs/alg-geom/9408008

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Report on the Torsion of the Differential Module of an algebraic Curve

Autor: Berger, Robert W.

Publikováno v: Algebraic Geometry and its Applications, Springer (1994), 285--303

There is a conjecture, that the torsionfreeness of the module of differentials in a point of an algebraic or algebroid curve should imply that the curve is non singular at that point. A report on the main results is given.
Comment: 15 pages, AMS

Externí odkaz: http://arxiv.org/abs/alg-geom/9205001

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