Results 261 to 270 of about 5,633,674 (291)

Cylinder Homomorphisms and Chow Groups

Mathematische Nachrichten, 1993
Abstract Let X be a projective algebraic manifold of dimension n (over C), CH 1 (X) the Chow group of algebraic cycles of codimension l
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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.
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Motives and filtrations on Chow groups

Inventiones Mathematicae, 1996
Let \(\text{CH}^r(X)\) be the Chow group of algebraic cycles of codimension \(r\) on a smooth complex projective algebraic variety \(X\). According to a conjecture of A. Beilinson and S. Bloch, there should exist a filtration \(\text{CH}^r(X) = F_{\mathcal M}^0\supset \ldots F_{\mathcal M}^\nu\supset\ldots\) which satisfies the following conditions: (1)
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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.
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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.
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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.
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A semi-small decomposition of the Chow ring of a matroid

Advances in Mathematics, 2022
Nicholas James Proudfoot, Jacob Paul Matherne   +1 more
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Computing chow groups

1988
F. Rosselló Llompart, S. Xambó Descamps   +1 more
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The Relationship among the Specification Tests of Hausman, Ramsey, and Chow

Journal of the American Statistical Association, 1985
Jerry G Thursby
exaly   +2 more sources

An asymptotically F-distributed Chow test in the presence of heteroscedasticity and autocorrelation

Econometric Reviews, 2022
Xuexin Wang
exaly