24 citations · 56 across the 7 of their papers we have counts for
15 papers
Vacuum stability conditions of the general two-Higgs-doublet potential
Yisheng Song
In this paper, we present the novel analytical expressions for the bounded-from-below or the vacuum stability conditions of scalar potential for a general CP violating two-Higgs-do…
A Comprehensive Survey of Few-shot Learning: Evolution, Applications, Challenges, and Opportunities
Yisheng Song, Ting Wang, Subrota K Mondal +1
Few-shot learning (FSL) has emerged as an effective learning method and shows great potential. Despite the recent creative works in tackling FSL tasks, learning valid information r…
Co-positivity of tensors and bounded from below conditions of CP conserving two-Higgs-doublet potential
Yisheng Song
In this paper, the analytic sufficient and necessary conditions are obtained for the CP conserving two-Higgs-doublet potential to be bounded from below by using the co-positivity o…
Copositivity for a class of fourth order symmetric tensors given by scalar dark matter
Yisheng Song, Xudong Li
The mathematical model of multiple microscopic particles potentials corresponds to a fourth order symmetric tensor with a particular structure in particle physics. In this paper, w…
Boundedness from below conditions for a general scalar potential of two real scalars fields and the Higgs boson
Yisheng Song, Liqun Qi
The most general scalar potential of two real scalar fields and a Higgs boson is a quartic homogeneous polynomial about 3 variables, which defines a 4th order 3 dimensional symmetr…
Positivity Conditions for Cubic, Quartic and Quintic Polynomials
Liqun Qi, Yisheng Song, Xinzhen Zhang
We present a necessary and sufficient condition for a cubic polynomial to be positive for all positive reals. We identify the set where the cubic polynomial is nonnegative but not…