Weight hierarchies of three-weight $p$-ary linear codes from inhomogeneous quadratic forms

Abstract

The weight distribution and weight hierarchy of a linear code are two important research topics in coding theory. In this paper, choosing $ D=\Big\{(x,y)\in \Big(\F_{p^{s_1}}\times\F_{p^{s_2}}\Big)\Big\backslash\{(0,0)\}: f(x)+\Tr_1^{s_2}(αy)=0\Big\}$ as a defining set , where $\alpha \in {\mathbb{F}}_{p^{s_2}}^{\ast }$ and $f(x)$ is a quadratic form over ${\mathbb{F}}_{p^{s_1}}$ with values in $\F_p$, whether $f(x)$ is non-degenerate or not, we construct a family of three-weight $p$-ary linear codes and determine their weight distributions and weight hierarchies. Most of the codes can be used in secret sharing schemes.