Reverse square function estimates for degenerate curves and its applications

This paper establishes L4L^4 reverse square function estimates for functions with Fourier support near degenerate curves {(ξ,ξa)}\{(\xi,\xi^a)\} (for a1a \neq 1), which are then applied to derive sharp L4L^4 Strichartz estimates for fractional Schrödinger equations on the one-dimensional torus and new local smoothing estimates in modulation spaces.

Aleksandar Bulj, Kotaro Inami, Shobu Shiraki2026-03-10🔢 math

Counting spaces of functions on separable compact lines

This paper investigates the number of isomorphism types of Banach spaces C(K)C(K) for compact spaces of a given weight, proving that there are exactly $2^\kappatypesforanyuncountableregularcardinal types for any uncountable regular cardinal \kappa,whiledemonstratingthatforseparablecompactlinearlyorderedspacesofweight, while demonstrating that for separable compact linearly ordered spaces of weight \omega_1,thenumberoftypes(rangingfromoneto, the number of types (ranging from one to 2^{\omega_1}$) depends on additional set-theoretic axioms such as the Continuum Hypothesis or Baumgartner's axiom.

Maciej Korpalski, Piotr Koszmider, Witold Marciszewski2026-03-10🔢 math

Can a Lightweight Automated AI Pipeline Solve Research-Level Mathematical Problems?

This paper demonstrates that a lightweight, automated AI pipeline integrating next-generation large language models with citation-based verification can successfully generate and solve sophisticated, research-grade mathematical problems, including previously unpublished questions, with verified results and open-sourced tools.

Lve Meng (University of Science,Technology of China, Zhongguancun Academy), Weilong Zhao (Université Paris Cité), Yanzhi Zhang (Zhongguancun Academy), Haoxiang Guan (Zhongguancun Academy), Jiyan He (Zhongguancun Academy)2026-03-10🔢 math

Modular Nahm sums for symmetrizable matrices of indices (2,,2,1)({2,\ldots, 2},1) and (1,,1,2)({1,\ldots, 1},2)

This paper presents three families of modular Nahm sums for symmetrizable matrices of indices (2,,2,1)({2,\ldots, 2},1) and (1,,1,2)({1,\ldots, 1},2) with arbitrary rank r2r\geq 2, extending previous results for low ranks and utilizing these families to construct two vector-valued automorphic forms.

Julia Q. D. Du, Kathy Q. Ji, Erin Y. Y. Shen, Clara X. Y. Xu2026-03-10🔢 math