Equivariant Algebraic Vector Bundles Over Representations — A Survey

Author(s):  
Mikiya Masuda
Author(s):  
Tom Bachmann ◽  
Kirsten Wickelgren

Abstract We equate various Euler classes of algebraic vector bundles, including those of [12] and one suggested by M. J. Hopkins, A. Raksit, and J.-P. Serre. We establish integrality results for this Euler class and give formulas for local indices at isolated zeros, both in terms of the six-functors formalism of coherent sheaves and as an explicit recipe in the commutative algebra of Scheja and Storch. As an application, we compute the Euler classes enriched in bilinear forms associated to arithmetic counts of d-planes on complete intersections in $\mathbb P^n$ in terms of topological Euler numbers over $\mathbb {R}$ and $\mathbb {C}$ .


1975 ◽  
Vol 19 (3) ◽  
pp. 336-343 ◽  
Author(s):  
Joseph M. Cavanaugh

2007 ◽  
Vol 37 (2) ◽  
pp. 587-596
Author(s):  
Kazunori Nakamoto ◽  
Takeshi Torii

2005 ◽  
Vol 16 (10) ◽  
pp. 1207-1220 ◽  
Author(s):  
INDRANIL BISWAS ◽  
D. S. NAGARAJ

We give a complete classification of isomorphism classes of real algebraic vector bundles over the scheme defined by a nondegenerate anisotropic conic defined over the field of real numbers.


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