= The research on Reiner Grundmann's thought of ecological Marxism Research on Reiner Grundmann's thought of ecological Marxism The research on Ted Benton's thought of ecological Marxism Research on Ted Benton's thought of ecological Marxism Study on Foster's thought of ecological Marxism the research on Slavoj Zizek's thought of ideological function Research on G.A. Cohen's thought of equalitarianism