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Random polynomial systems, Kahler geometry and the momentum map

External Lecturer: 
Gregorio Malajovich
Course Type: 
Seminar Series
Academic Year: 
2018-2019
Period: 
October
Duration: 
10 h
Description: 

Lecture 1: On counting solutions of polynomial systems

  •   Bézout's theorem
  •   Smale's 17-th problem
  •   Shortcomings of Bézout's theorem
  •   Sparse polynomial systems, and the mixed volume

Lecture 2: Differential forms

  •   Multilinear algebra over R
  •   Complex differential forms
  •   Kähler geometry
  •   The coarea formula, using bundles.
  •   Projective space

Lecture 3: Reproducing kernel spaces

  •   Spaces of complex fewnomials
  •   Metric structure on root space
  •   Unmixed systems
  •   Random analytic functions

Lecture 4: Mixed systems of equations

  •   Root density
  •   Affine and multi-homogeneous setting
  •   The semigroup of fewnomial spaces

Lecture 5: Exponential sums

  •   Legendre transform
  •   The momentum map
  •   Proof of Bernstein's theorem

  

Location: 
TBC(to be checked)
Location: 
A-135 on Thursday 24/10. A-133 otherwise.
Next Lectures: 

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