Vol. 15, April, 1997

• On the Construction of Algebraic-Geometric Codes, Hong Du, Zhuojun Liu, and Changyan Di, 1-7
• Solving Geometric Constraint Systems II. A Symbolic Approach and Decision of Rc-constructibility,Xiao-Shan Gao and Shang-Ching Chou, 8-24
• Wu’s Method for the Reverse Force Analysis of a Planar Two-spring System, Lin Han, Chonggao Liang, and Yu Zhang, 25-33
• The Inverse Force Analysis of a Compliant Four-Bar Mechanism with External Force Acting on a Fixed Point on the Coupler, Lin Han, Qizheng Liao, and Chonggao Liang, 34-38
• Local Bifurcation of Critical Periods in Reversible Cubic Systems, Xiaorong Hou, Zhenbing Zeng, and Weinian Zhang, 39-52
• On Erdos’ Ten-Point Problem, Hongbo Li and He Shi, 53-63
• Solitary Wave Solutions for Two Coupled Nonlinear Wave Equations, Zhibin Li, 64-68
• A Modular Algorithm for Computing Greatest Common Right Divisors of Ore Polynomials, Ziming Li and Istv′an Nemes, 69-88
• The Positive Definiteness of a Class of Polynomials from the Global Stability Analysis of Lotka-Volterra Systems, Zhengyi Lu and Guojie Wang, 89-98
• On the Interactive and Programming Environment for STAR, Yu Ju, Jun Liu, and Zhuojun Liu, 99-112
• The Flat Central Configurations of Four Planet Motions, He Shi and Fengmei Zou, 113-121
• Direct Positional Analysis for a Kind of 5-5 Platform in Parallel Robotic Mechanism, Haijun Su, QiZheng Liao and Chonggao Liang
• Explicit Criterion to Determine the Number of Positive Roots of a Polynomial, Lu Yang and Bican Xia, 134-145
• Applications of Wu-differential Characteristic Method for Computations of Symmetries of Partial Differential Equations, Hong-Qing Zhang and Lu Chao, 146-154
• Nearest Singular Polynomials, Lihong Zhi and Wenda Wu, 155-163
• The Invariants and Covariants of an m-ary Form, Fengmei Zou, 164-179