Back to Search
Start Over
$$\ell $$-independence of the trace of local monodromy in a relative case (with an appendix by Qing Lu and Weizhe Zheng)
- Source :
- manuscripta mathematica. 166:287-314
- Publication Year :
- 2020
- Publisher :
- Springer Science and Business Media LLC, 2020.
-
Abstract
- For a family of varieties, we prove that the alternating sum of the traces of “local” monodromy acting on the $$\ell $$ -adic etale cohomology groups of the generic fiber is an integer that is independent of $$\ell $$ . In the course of the proof, we also establish a result on fixed points.
- Subjects :
- Trace (linear algebra)
Fiber (mathematics)
General Mathematics
010102 general mathematics
Étale cohomology
Algebraic geometry
Fixed point
01 natural sciences
Combinatorics
Mathematics::Algebraic Geometry
Number theory
Monodromy
Integer
Mathematics::K-Theory and Homology
0103 physical sciences
010307 mathematical physics
0101 mathematics
Mathematics
Subjects
Details
- ISSN :
- 14321785 and 00252611
- Volume :
- 166
- Database :
- OpenAIRE
- Journal :
- manuscripta mathematica
- Accession number :
- edsair.doi...........0b1e355dc064c7b87a039bd267b0f27c