Antonio Rojas-León

activity

20102026

most citedRationality of trace and norm L-functions

3 citations · 6 across the 13 of their papers we have counts for

collaborators

Showing 2018Show all

3 papers · 1 filter

math.NT2018

Rigid local systems with monodromy group the Conway group Co_2

Nicholas M. Katz, Antonio Rojas-León, Pham Huu Tiep

We first develop some basic facts about hypergeometric sheaves on the multiplicative group $G_{m}$ in characteristic $p > 0$ . Certain of their Kummer pullbacks extend to irr…

math.NT2018

Rigid local systems with monodromy group the Conway group Co_3

Nicholas M. Katz, Antonio Rojas-León, Pham Huu Tiep

We first develop some basic facts about certain sorts of rigid local systems on the affine line in characteristic $p > 0$ . We then apply them to exhibit a number of rigid local syste…

math.NT2018

Tensor and convolution direct image of $ℓ$ -adic sheaves

Antonio Rojas-León

Given a Galois étale map of varieties $π : Y \to X$ and an $ℓ$ -adic sheaf or derived category object $P \in D_{c}^{b} (Y, Q_{ℓ})$ , we study two cohomological operations: the te…

Rigid local systems with monodromy group the Conway group Co_2

Rigid local systems with monodromy group the Conway group Co_3

Tensor and convolution direct image of ℓ-adic sheaves

Tensor and convolution direct image of $ℓ$ -adic sheaves