[91] Computationally Determining the Dimensions of the Homology Groups of Directed Graphs

[92] Generalization of the Topological Sum

[93] The Mathematical Model of the Oil Spilling in the Gulf of Mexico Based on the Extended Fay Formulas

[94] The Rationality of the Vertices of a Regular Simplex or Semiregular Simplex in R^n or L^p-space over R^2

[95] Quantitative Evaluation Model about the Traffic Congestion Degree of Intersections in Wuhan