Browsing by Author "aus dem Siepen, Elisabeth"

Now showing items 1-6 of 6

    • The 4-Sample Theorem on planar graphs 

      [SNAP-2026-005-EN] Améndola, Carlos; Kahle, Thomas (Mathematisches Forschungsinstitut Oberwolfach, 2026-04-10)
      The famous 4-Color Theorem from graph theory states that the vertices of any planar graph can be colored with four colors, so that no neighboring vertices have the same color. The 4-Sample Theorem from algebraic statistics ...

    • Alternating sign matrix bijections: marvelous, mysterious, missing 

      [SNAP-2026-003-EN] Striker, Jessica (Mathematisches Forschungsinstitut Oberwolfach, 2026-02-24)
      A bijection transforms one type of mathematical object into another. Such transformations provide new perspectives on these objects, revealing surprising properties and uncovering new mysteries. We discuss bijections from ...

    • Brauer's problems: 60 years of legacy 

      [SNAP-2025-006-EN] Rizo, Noelia; Schaeffer Fry, Mandi A. (Mathematisches Forschungsinstitut Oberwolfach, 2025-11-24)
      Richard Brauer (1901-1977) was a German-American mathematician who is regarded as the founder of a highly active mathematical area known as modular representation theory. This area grew from group theory, which can be ...

    • Do the rich get richer? Mathematical models for real-world networks 

      [SNAP-2026-010-EN] Lodewijks, Bas (Mathematisches Forschungsinstitut Oberwolfach, 2026-09-11)
      Networks can be found all around us. From the friendships we form, both in person and online, to the websites we visit on the Internet, and the telephones we use to send messages and make phone calls. Understanding the ...

    • Simulating Alzheimer's disease with a brainsphere model 

      [SNAP-2026-007-EN] Kunoth, Angela; Weller, Anna; Yilmaz, Tolunay (Mathematisches Forschungsinstitut Oberwolfach, 2026-06-09)
      Nowadays, there are different medical imaging techniques to collect data about the progression of Alzheimer's disease in a patient's brain. These data describe different phenomena which are still not understood from a ...

    • Trisections of four-dimensional spaces 

      [SNAP-2025-005-EN] Blackwell, Sarah (Mathematisches Forschungsinstitut Oberwolfach, 2025-09-19)
      This snapshot introduces the theory of trisections of smooth 4-manifolds, an area of exploration in low-dimensional topology aiming to make four-dimensional spaces more understandable. Along the way, we discuss the concepts ...