Institut für Mathematik

Forschung

HS 23

Forschung

Projective Varieties of Maximal Sectional Regularity

Research and Publishing Activities since 2000


Primary: Commutative Algebra and its Interaction with Algebraic Geometry

Local Cohomology

  • Structure of Local Cohomology Modules
  • Vanishing- and Finiteness Results
  • Associated Primes of Local Cohomology Modules
  • Behaviour of Graded Components


Cohomology of Projective Schemes

  • Cohomological Hilbert Functions
  • Cohomological Patterns
  • Castelnuovo-Regularity and Related Invariants


Projective Varieties of low Degree

  • Geometric Characterizations
  • Cohomology and Hartshorne-Rao Functions
  • Approximation of Betti-Numbers
  • Cohomology of Ample Line Bundles


Projective Varieties of Maximal Sectional Regularity

  • Geometry and Projecting Scrolls
  • Extremal Secant Lines and Extremal Secant Varieties
  • Cohomological Properties and Betti Numbers
  • The Case of Codimension 2
  • Classification


Secondary: Visualization and Popular Exposition of Mathematics

Visualization of Surfaces

  • Models of closed Surfaces
  • Paremetrization and Physical Realization

Blowups of the Real Affine Plane

  • Embedded Blowups with respect to a Pair of Polynomials
  • Embedded Isomorphisms and Isotopic Families
  • Animated Visualization