Browsing 2 - Snapshots of Modern Mathematics from Oberwolfach by Author "aus dem Siepen, Elisabeth"
Now showing items 1-4 of 4
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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 ... -
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 ...