Results 11 to 20 of about 3,692,977 (264)

Local Chern classes [PDF]

open access: bronzeAnnales scientifiques de l'École normale supérieure, 1976
Birger Iversen
openalex   +3 more sources

Grothendieck classes and Chern classes of hyperplane arrangements [PDF]

open access: yesInternational Mathematics Research Notices, 2012
We show that the characteristic polynomial of a hyperplane arrangement can be recovered from the class in the Grothendieck group of varieties of the complement of the arrangement.
Aluffi   +26 more
core   +4 more sources

Chern classes and projective geometry [PDF]

open access: bronzeJournal of Differential Geometry, 1972
Classical projective geometry is rich in relations between the extrinsic invariants (e.g., order, double tangents, number of nodes, triple points, •) associated with an algebraic map /: M —• CPN of a projective algebraic manifold M. It has also long been known that these extrinsic invariants may be sometimes used to define birational or intrinsic ...
Kalyan K. Mukherjea
openalex   +4 more sources

A geometric interpretation of the Chern classes [PDF]

open access: bronzeTransactions of the American Mathematical Society, 1983
Let f ξ : M → B U {f_\xi }: M \to BU be a classifying map of the stable complex bundle ξ \xi over the weakly complex manifold M M .
R. Sivera Villanueva
openalex   +3 more sources

On a naturality of Chern-Mather classes [PDF]

open access: bronzeProceedings of the Japan Academy, Series A, Mathematical Sciences, 1999
Let \(X\) denote a possibly singular algebraic variety and \({\mathcal F}(x)\) the group of constructible functions on \(X\). \textit{R. D. MacPherson} [Ann. Math. (2) 100, 423-432 (1974; Zbl 0311.14001)] showed the existence of a unique natural transformation \(C_*:{\mathcal F}\to H_*\) such that for \(X\) nonsingular \(C_*(\mathbf{1}_X)=c(Tx)\cap [X]\
Shoji Yokura
openalex   +5 more sources

Profinite Chern classes for group representations [PDF]

open access: greenPublicacions Matemàtiques, 1983
Let \(\rho\) : \(G\to GL_ n{\mathbb{C}}\) be a complex representation of the discrete group G. There is an obvious action of field automorphisms of \({\mathbb{C}}\) on the vector bundles of the form \(\xi\) (\(\rho)\), and it is our ojective to study the behavior of Chern classes under this action.
Beno Eckmann, Guido Mislin
openalex   +8 more sources

On the positivity of the first Chern class of an Ulrich vector bundle [PDF]

open access: yesCommunications in Contemporary Mathematics, 2020
We study the positivity of the first Chern class of a rank [Formula: see text] Ulrich vector bundle [Formula: see text] on a smooth [Formula: see text]-dimensional variety [Formula: see text].
A. Lopez
semanticscholar   +1 more source

Chern Class Inequalities on Polarized Manifolds and Nef Vector Bundles [PDF]

open access: yesInternational mathematics research notices, 2020
This article is concerned with Chern class and Chern number inequalities on polarized manifolds and nef vector bundles. For a polarized pair $(M,L)$ with $L$ very ample, our 1st main result is a family of sharp Chern class inequalities.
Ping Li, F. Zheng
semanticscholar   +1 more source

On the Cohomology Chern Classes of the K-Theory Chern Classes [PDF]

open access: yesProceedings of the American Mathematical Society, 1970
Let ξ \xi be a vector bundle over a finite complex and γ i ξ {\gamma ^i}\xi its i i th- K K theory Chern class. We first show that \[ c n
Larry Smith, Mi-soo Bae Smith
openaire   +2 more sources

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