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4 votes
1 answer
326 views

Rational homotopy type of rational mapping spaces

I was interested in the question of figuring out the rational homotopy type of mapping spaces (regular or rational) between two algebraic varieties over $\mathbb{C}$. I encountered the following paper ...
user127776's user avatar
  • 5,901
16 votes
1 answer
689 views

Rational homotopy groups of a projective hypersurface

Let $X$ be a smooth projective hypersurface in $\mathbb{P}^n$. Has anyone computed the rational homotopy groups $\pi_i(X)\otimes \mathbb{Q}$ of $X$? I tried Google, but did not find anything. One ...
H. Tzyn's user avatar
  • 161
4 votes
1 answer
243 views

Jacobian and configuration space and massey products

Let $X$ be a comapct Riemann surface of genus $g$ and let $J\: : \: X\to \mathbb{C}^{g}/\Lambda$ be the Abel-Jacobi map. This map is a smooth embedding. Let $p\in X$ such that $J(p)=\Lambda$ and ...
Cepu's user avatar
  • 1,424
27 votes
1 answer
3k views

Mixed Hodge structure on the rational homotopy type

A mixed Hodge structure (mHs) on a commutative differential graded algebra (cgda) over $\mathbf{Q}$ is a mixed Hodge structure on the underlying vector space such that the product and the differential ...
algori's user avatar
  • 23.5k
7 votes
1 answer
839 views

Schematization of a topological space

I wanted to understand or at least to know if what follows make sense. Given a connected toplogical space $X$, I want to associate a scheme. In the following way. For a space $X$ and $A(X)$ the ...
lilia's user avatar
  • 235
1 vote
0 answers
409 views

Rational homotopy and l-adic cohomology

In rational homotopy theory there is a basic construction which, given a prime number $l$ and a $CW$-complex $X$, produces a localized space $X_l$ equipped with a map $X\rightarrow X_l$ that induces ...
user avatar
3 votes
0 answers
82 views

Is the functor of PA forms known to be equivalent to the functor of PL forms for noncompact spaces?

In the following paper: Robert Hardt, Pascal Lambrechts, Victor Turchin, and Ismar Volić, Real homotopy theory of semi-algebraic sets, Algebr. Geom. Topol. 11 (2011), no. 5, 2477–2545. the authors ...
Najib Idrissi's user avatar