Results 241 to 250 of about 460,954 (280)

Evaluation of a 3,5-diethoxycarbonyl-1,4-dihydrocollidine diet-induced mouse model in a comparative experimental study of portal hypertension. [PDF]

open access: yesWorld J Gastroenterol
Zhao JB   +12 more
europepmc   +1 more source

Cylinder Homomorphisms and Chow Groups

Mathematische Nachrichten, 1993
AbstractLet X be a projective algebraic manifold of dimension n (over C), CH1(X) the Chow group of algebraic cycles of codimension l on X, modulo rational equivalence, and A1(X) ⊂ CH1(X) the subgroup of cycles algebraically equivalent to zero. We say that A1(X) is finite dimensional if there exists a (possibly reducible) smooth curve T and a cycle z ...
openaire   +1 more source

Groupes de Chow-Witt

Mémoires de la Société mathématique de France, 2008
Dans ce travail, nous etudions les groupies de Chow- Witt. Ces groupes ont ete introduits par J. Barge et F. Morel dans le but de comprendre dans quelle situation un A-module projectif P de rang egal a la dimension de A est isomorphe a un module projectif plus simple Q ⊕ A.
openaire   +1 more source

Groupes de Chow orientés

2005
In this work we study the oriented Chow groups. These groups were defined by J. Barge et F. Morel in order to understand when a projective module P of top rank over a ring A has a free factor of rank one, i.e is isomorphic to Q ⊕ A. We show first that these groups satisfy the same functorial properties as the classical Chow groups.
openaire   +1 more source

Chow groups, pull back and class groups

Monatshefte für Mathematik
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kalyan Banerjee, Azizul Hoque
openaire   +2 more sources

Chow groups and tubular neighbourhoods

Journal of Singularities, 2010
We will prove theorems of Zariski-Lefschetz type for the analytic Chow groups of a quasi-projective variety. We will also derive an algebraic analogue, using formal instead of tubular neighbourhoods.
openaire   +1 more source

DGA-Structure on Additive Higher Chow Groups

International Mathematics Research Notices, 2013
Summary: We construct a graded-commutative differential graded algebra structure on additive higher Chow groups of a smooth projective variety over a perfect field. We show that these groups are equipped with Frobenius and Verschiebung operators that turn the collection into a Witt complex.
Krishna, A Krishna, Amalendu   +1 more
openaire   +3 more sources

Equivariant Chow groups and multiplicities

2008
We propose a definition of equivariant Chow groups for schemes with a torus action and develop the intersection theory related to it. The equivariant intersection theories that have been considered in the past have been the Chow groups and the K-theory of the quotient scheme, as well as the equivariant K-groups of the original scheme.
openaire   +1 more source

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