Log Bott localization with non-isolated lci zero varieties

This paper establishes a logarithmic Bott localization formula for global holomorphic sections of TX(logD)T_X(-\log D) on a compact complex manifold with a simple normal crossings divisor, extending the theory to non-isolated zero schemes that are local complete intersections and providing a current-theoretic formulation that identifies the local residue with a Coleff-Herrera current.

Maurício Corrêa, Elaheh ShahsavaripourTue, 10 Ma🔢 math

Operators with small Kreiss constants

This paper investigates matrices and operators satisfying the Kreiss condition with constants arbitrarily close to one, establishing refined lower bounds for power growth and demonstrating that specific variants of the condition guarantee similarity to a contraction when the spectrum touches the unit circle at a single point, utilizing a positivity argument involving the double-layer potential operator.

Nikolaos Chalmoukis, Georgios Tsikalas, Dmitry YakubovichThu, 12 Ma🔢 math

The Kobayashi-Hitchin correspondence for nef and big classes

This paper establishes a complete proof of the Kobayashi-Hitchin correspondence for nef and big classes by introducing the concepts of adapted closed positive (1,1)(1,1)-currents and TT-adapted Hermitian-Yang-Mills metrics, thereby proving that a holomorphic vector bundle is slope polystable if and only if it admits such a metric, a result that extends to singular settings and yields new insights into projective flatness and the Bogomolov-Gieseker inequality.

Satoshi JinnouchiThu, 12 Ma🔢 math

Non-abelian Hodge correspondence over singular Kähler spaces

This paper extends the non-abelian Hodge correspondence to compact Kähler spaces with klt singularities by establishing an equivalence between polystable Higgs bundles and semi-simple flat bundles on regular loci and proving a descent theorem for Higgs bundles along resolutions, ultimately yielding a quasi-uniformization theorem for projective klt varieties satisfying the orbifold Miyaoka-Yau equality.

Chuanjing Zhang, Shiyu Zhang, Xi ZhangMon, 09 Ma🔢 math

On fluctuations of Coulomb systems and universality of the Heine distribution

This paper investigates fluctuations in β=2\beta=2 Coulomb gases under specific external potentials, proving that particle counts near spectral outposts follow an asymptotic Heine distribution while those near disconnected droplet components exhibit discrete normal fluctuations, ultimately characterizing general linear statistics as a sum of Gaussian and oscillatory discrete Gaussian fields.

Yacin Ameur, Joakim CronvallMon, 09 Ma🔢 math