1 Subjects: “...decoupling theory...”

2 Subjects: “...graph theory...”

3 Subjects: “...engineering theory...”

4 Subjects: “...density functional theory (DFT)...”

5 Subjects: “...landscape theory...”

6 Subjects: “...game theory...”

7 Subjects: “...Fuzzy Theory...”

8 Subjects: “...information gap decision theory (IGDT)...”

9 Subjects: “...perturbation theory...”

10 Subjects: “...retinex theory...”

11 Subjects: “...evidence theory...”

12 Subjects: “...mutual information theory...”

13 Subjects: “...mutual information theory...”

14 Subjects: “...evolutionary game theory...”

15 Subjects: “...evolutionary game theory...”