quartic equation

n.

四次方程；

A contribution to matrix quadratic equations
Solving Elliptic Diophantine Equations by estimating Linear Forms in Elliptic Logarithms. The case of Quartic Equations
Quadratic equations and applications to Chandrasekhar's and related equations
A Fixed Point Approach to Stability of a Quadratic Equation
An efficient signature scheme based on quadratic equations
Matrix quadratic equations
A generalization of the Hyers–Ulam–Rassias stability of the Pexiderized quadratic equations ☆
On the orthogonal stability of the pexiderized quadratic equation
Stability of the Quadratic Equation of Pexider Type
A Fixed Point Approach to Stability of the Quadratic Equation