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==Motivic sheaves==

This semester in the seminar we will discuss topics around the Euler–Poincaré characteristic and the Grothendieck–Ogg–Shafarevich formula.

References:

* G. Laumon, ''Transformation de Fourier homogène'', Bulletin SMF 2013, [http://www.numdam.org/item/?id=BSMF_2003__131_4_527_0 numdam].
* L. Illusie, Théorie de Brauer et caractéristique d'Euler-Poincaré, Asterisque 82-83, [http://www.numdam.org/item/AST_1981__82-83_/ numdam].
* G. Laumon, Semi-continuité du conducteur de Swan, Asterisque 82-83, [http://www.numdam.org/item/AST_1981__82-83_/ numdam].
* R. MacPherson, Chern classes for singular algebraic varieties, Annals 1974, [https://www.jstor.org/stable/1971080 jstor].

==Time and place==

Do 14-16, M 103

==Talks==

<table>
<tr>
<td></td>
<td>Date</td>
<td>Title</td>
<td>Speaker</td>
</tr>

<tr>
<td>8.</td>
<td>Nov</td>
<td>Motivic Fourier transform I</td>
<td>Masoud Zargar</td>
</tr>

<tr>
<td>15.</td>
<td>Nov</td>
<td>Motivic Fourier transform II</td>
<td>Adeel Khan</td>
</tr>

<tr>
<td>29.</td>
<td>Nov</td>
<td>Motivic Fourier transform III</td>
<td>Adeel Khan</td>
</tr>

<tr>
<td>6.</td>
<td>Dez</td>
<td>Background on Swan conductors and vanishing cycles</td>
<td>Benedikt Preis</td>
</tr>

<tr>
<td>13.</td>
<td>Dez</td>
<td>Motivic Fourier transform IV</td>
<td>Masoud Zargar</td>
</tr>

<tr>
<td>20.</td>
<td>Dez</td>
<td>The Grothendieck–Ogg–Shafarevich formula</td>
<td>Veronika Ertl</td>
</tr>

<tr>
<td>10.</td>
<td>Jan</td>
<td>Brauer theory and the Euler-Poincaré characteristic ([http://www-app.uni-regensburg.de/Fakultaeten/MAT/sfb-higher-invariants/images/motivic-sheaves-seminar-2019-01-10.pdf notes])</td>
<td>Federico Binda</td>
</tr>

<tr>
<td>17.</td>
<td>Jan</td>
<td>Constructibility of the Swan conductor</td>
<td>Benedikt Preis</td>
</tr>

<tr>
<td>24.</td>
<td>Jan</td>
<td>A base change theorem</td>
<td>Kévin François</td>
</tr>

<tr>
<td>31.</td>
<td>Jan</td>
<td>Deformation of coverings</td>
<td>Yigeng Zhao</td>
</tr>

<tr>
<td>7.</td>
<td>Feb</td>
<td>Semi-continuity of the Swan conductor</td>
<td>Benedikt Preis</td>
</tr>

</table>

Motivic Sheaves WS 2018/19 - Revision history

132.199.243.28: Created page with "__NOTOC__ ==Motivic sheaves== This semester in the seminar we will discuss topics around the Euler–Poincaré characteristic and the Grothendieck–Ogg–Shafarevich formul..."

132.199.243.28: Created page with "NOTOC ==Motivic sheaves== This semester in the seminar we will discuss topics around the Euler–Poincaré characteristic and the Grothendieck–Ogg–Shafarevich formul..."