Talk:Mixed Hodge structure

{{WikiProject banner shell|class=Start|

{{WikiProject Mathematics|importance=mid}}

}}

Resources and suggestions for improving article

If you're interested in helping improve this article, I've outlined resources and data points which should be added. These additions will make a more "feature complete" article making mixed Hodge structures more accessible to a (mature enough) general mathematics audience.

= Examples section =

  • http://geometry.ma.ic.ac.uk/acorti/wp-content/uploads/2016/07/mixedLSGNT.pdf
  • https://arxiv.org/abs/1412.8499
  • https://www.math.bgu.ac.il/~kernerdm/eTexts/Steenbrink.Mixed.Hodge.Structure.Singularities.Survey.pdf
  • Mixed Hodge Structures book for intermediate Jacobians

== abstract ==

  • Tate structure H^1(\mathbb{G}_m;\mathbb{Z}) = \mathbb{Z}(-1) and its dual
  • extensions, use for curves
  • Mixed hodge structure for Cohomology of a smooth projective variety

== complements ==

  • Elliptic curves minus points (or algebraic curves minus points) -> need Hypercohomology, check out https://mathoverflow.net/questions/21483/question-about-hypercohomology-spectral-sequence-of-a-complex-of-almost-acycl

== resolutions of singularities ==

  • Mention proper base change
  • Add example of normalization of curves
  • Add example of resolution of singularities for an A_n singular surface
  • https://arxiv.org/abs/alg-geom/9602006 Pg 82: x^2w^{n-1} + y^2w^{n-1} + z^{n+1} is a smooth compactification, check on the chart z \neq 0

= Theorems =

  • Deligne's global invariant cycle theorem
  • Monodromy Weight filtration/theorem
  • Bounding the weights — Preceding unsigned comment added by Wundzer (talkcontribs) 03:33, 12 August 2020 (UTC)
  • Mixed hodge module's theorem for intersection cohomology

== Monodromy Weight filtration ==

Hodge Theory of maps Part I Milgiorini contains the relevant material.

  • pg 265 (pg 281 in pdf) contains example of decomposition theorem
  • continuing from there the rest contains everything required for monodromy weight filtration
  • https://www.math.purdue.edu/~arapura/preprints/limitmhs.pdf has more useful information
  • good examples can be found using stable reduction, or use a Lefschetz fibration

== Nilpotent orbit theorems ==

  • pg 294 (pdf 310) of Hodge theory of Cattani, Zein, Griffiths, Trang

= Singularities =

  • (MULTIPLIER IDEALS, MILNOR FIBERS, AND OTHER SINGULARITY INVARIANTS) - https://pdfs.semanticscholar.org/d683/1f275409bb35b5704619bebe7b20a784ef16.pdf
  • https://arxiv.org/abs/1012.3150 (pg 5-6 helps give intuition for why rational indices are used while constructing/defining mixed Hodge modules)
  • http://www.numdam.org/article/CM_1995__97_1-2_285_0.pdf - monodromy and weight filtration + signature of intersection forms for isolated singularities
  • https://arxiv.org/abs/1703.07146 - COMPUTING MILNOR FIBER MONODROMY FOR SOME PROJECTIVE HYPERSURFACES (Dimca)
  • Chapter 3 of Singularities and Topology of Hypersurfaces
  • https://math.unice.fr/~dimca/sing.pdf
  • http://www.numdam.org/item/AIF_2007__57_3_775_0/ - Movasati - MHS of isolated singularities
  • MHM intro - http://www.numdam.org/article/AST_1989__179-180__145_0.pdf - contains references to all relevant papers

== Monodromy of Milnor fibers ==

  • Computing the eigenvalues for the monodromy of Milnor fibers can be done by looking at b-functions. The Multiplier ideals, milnor fibers, and other singularity invariants contains an intro with some of the related theorems. Maybe this material should be contained in a spin-off article about Milnor fibers.

= In Mirror Symmetry =

  • https://projecteuclid.org/euclid.atmp/1312998216
  • http://swc.math.arizona.edu/aws/2004/notes.html — Preceding unsigned comment added by Wundzer (talkcontribs) 03:30, 12 August 2020 (UTC)

= Other =

  • Grothendieck Symbol gives the cycle class of a variety: checkout https://hal.archives-ouvertes.fr/hal-01271554/document
  • That document contains examples for relative and local cohomology, also good examples with curves: e.g. compactifying a curve with points gives an extension of mixed Hodge structures

= Applications =

== Langlands ==

  • http://www-users.math.umn.edu/~kwlan/articles/iccm-2016.pdf

— Preceding unsigned comment added by Wundzer (talkcontribs) 19:43, 3 August 2020 (UTC)