2 papers
math.DG2025
Cuspidal edges on focal surfaces of regular surfaces
Keisuke Teramoto
We investigate geometric invariants of cuspidal edges on focal surfaces of regular surface. In particular, we shall clarify the sign of the singular curvature at a cuspidal edge on…
math.ST2024
Algebraic approach to maximum likelihood factor analysis
Ryoya Fukasaku, Kei Hirose, Yutaro Kabata +1
In exploratory factor analysis, model parameters are usually estimated by maximum likelihood method. The maximum likelihood estimate is obtained by solving a complicated multivaria…