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Compactly supported $mathbb{A}^{1}$-Euler characteristic and the Hochschild complex

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 نشر من قبل Niny Arcila-Maya
 تاريخ النشر 2020
  مجال البحث
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We show the $mathbb{A}^{1}$-Euler characteristic of a smooth, projective scheme over a characteristic $0$ field is represented by its Hochschild complex together with a canonical bilinear form, and give an exposition of the compactly supported $mathbb{A}^{1}$-Euler characteristic $chi^{c}_{mathbb{A}^{1}}: K_0(mathbf{Var}_{k}) to text{GW}(k)$ from the Grothendieck group of varieties to the Grothendieck--Witt group of bilinear forms. We also provide example computations.

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