3 papers
cond-mat.str-el2025
Substrate tuning of the structural and electronic transition in thin flakes of the excitonic insulator candidate TaNiSe
Yuan-Shan Zhang, Zichen Yang, Chuanlian Xiao +4
TaNiSe continues to draw interest for its 326 K phase transition, whose dual electronic and structural nature reflects a complex interplay of electron-hole (excitonic) and…
math.NT2025
Class numbers of binary quadratic polynomials
Zichen Yang
In this paper, we give a formula for the proper class number of a binary quadratic polynomial assuming that the conductor ideal is sufficiently divisible at dyadic places. This all…
q-fin.ST2024
AI-Enhanced Factor Analysis for Predicting S&P 500 Stock Dynamics
Jiajun Gu, Zichen Yang, Xintong Lin +2
This project investigates the interplay of technical, market, and statistical factors in predicting stock market performance, with a primary focus on S&P 500 companies. Utilizing a…