Fluctuations of Young diagrams for symplectic groups and semiclassical orthogonal polynomials

This paper investigates the limit shapes and fluctuations of random Young diagrams arising from symplectic group duality by deriving semiclassical orthogonal polynomials via Christoffel transformation from Krawtchouk polynomials and analyzing their asymptotic behavior through an integral representation, thereby overcoming the lack of a free-fermionic representation available in the general linear case.

Anton Nazarov, Anton Selemenchuk2026-03-10🔢 math

Generative Prior-Guided Neural Interface Reconstruction for 3D Electrical Impedance Tomography

This paper introduces a "solver-in-the-loop" framework for 3D Electrical Impedance Tomography that combines a pre-trained 3D generative prior with a rigorous boundary integral equation solver to enforce physical constraints as hard conditions, thereby achieving superior geometric accuracy and data efficiency in reconstructing complex interfaces compared to traditional optimization and deep learning methods.

Haibo Liu, Junqing Chen, Guang Lin2026-03-10🔢 math

Suns in triangle-free graphs of large chromatic number

This paper proves that every triangle-free graph with sufficiently large chromatic number contains an induced subgraph that is either a tt-sun for some large tt or a $4sunwithonependantvertexremoved,therebymakingsignificantprogressonTrotignonsopenquestionregardingtheexistenceof-sun with one pendant vertex removed, thereby making significant progress on Trotignon's open question regarding the existence of t$-suns in such graphs.

Sepehr Hajebi, Sophie Spirkl2026-03-10🔢 math

Finitary conditions for graph products of monoids

This paper investigates how various finitary conditions, such as weakly left noetherian and weakly left coherent properties, interact with graph products of monoids, establishing that these properties are preserved under retracts and proving that while the converse holds for most conditions, the weakly left noetherian property requires a precise characterization of the constituent monoids and their graph structure.

Dandan Yang, Victoria Gould2026-03-10🔢 math