Zhang, Qingnian; Jiang, Lizhi Some substantial properties of set-valued measures. (Chinese. English summary) Zbl 0962.28010 J. Hebei Norm. Univ., Nat. Sci. Ed. 23, No. 3, 329-330, 346 (1999). MSC: 28B20 46G10 PDFBibTeX XMLCite \textit{Q. Zhang} and \textit{L. Jiang}, J. Hebei Norm. Univ., Nat. Sci. Ed. 23, No. 3, 329--330, 346 (1999; Zbl 0962.28010)
Li, Jinshan The Papini characteristic of best simultaneous approximation. (Chinese. English summary) Zbl 0960.41010 J. Hebei Norm. Univ., Nat. Sci. Ed. 23, No. 3, 325-328 (1999). Reviewer: Shi Ying-Guang (Beijing) MSC: 41A28 41A65 PDFBibTeX XMLCite \textit{J. Li}, J. Hebei Norm. Univ., Nat. Sci. Ed. 23, No. 3, 325--328 (1999; Zbl 0960.41010)
Li, Weinian Oscillation criteria for a class of systems of parabolic equations of neutral type. (Chinese. English summary) Zbl 0961.35168 J. Hebei Norm. Univ., Nat. Sci. Ed. 23, No. 3, 321-324 (1999). MSC: 35R10 35B05 35L10 PDFBibTeX XMLCite \textit{W. Li}, J. Hebei Norm. Univ., Nat. Sci. Ed. 23, No. 3, 321--324 (1999; Zbl 0961.35168)
Gu, Liyan; Liang, Haiyan Oscillation for neutral differential equations with time delay. (Chinese. English summary) Zbl 0962.34052 J. Hebei Norm. Univ., Nat. Sci. Ed. 23, No. 3, 318-320 (1999). MSC: 34K11 34K40 PDFBibTeX XMLCite \textit{L. Gu} and \textit{H. Liang}, J. Hebei Norm. Univ., Nat. Sci. Ed. 23, No. 3, 318--320 (1999; Zbl 0962.34052)
Li, Yucheng Laplace equation in Clifford analysis. (Chinese. English summary) Zbl 0961.35031 J. Hebei Norm. Univ., Nat. Sci. Ed. 23, No. 3, 314-317 (1999). MSC: 35J05 30G35 31B05 35A05 PDFBibTeX XMLCite \textit{Y. Li}, J. Hebei Norm. Univ., Nat. Sci. Ed. 23, No. 3, 314--317 (1999; Zbl 0961.35031)
Zhang, Ruilan Some relation formulas for \(q\)-hypergeometrical progressions. (Chinese. English summary) Zbl 1049.33503 J. Hebei Norm. Univ., Nat. Sci. Ed. 23, No. 3, 311-313 (1999). MSC: 33D05 PDFBibTeX XMLCite \textit{R. Zhang}, J. Hebei Norm. Univ., Nat. Sci. Ed. 23, No. 3, 311--313 (1999; Zbl 1049.33503)
Jin, Tingliang A necessary and sufficient condition for a ring to be an Artin weakly left duo ring. (Chinese. English summary) Zbl 0960.16027 J. Hebei Norm. Univ., Nat. Sci. Ed. 23, No. 3, 308-310 (1999). MSC: 16P20 16D70 16N40 PDFBibTeX XMLCite \textit{T. Jin}, J. Hebei Norm. Univ., Nat. Sci. Ed. 23, No. 3, 308--310 (1999; Zbl 0960.16027)
Wang, Yao Radicals of rings determined by periodic and Jacobson properties. (Chinese. English summary) Zbl 0960.16025 J. Hebei Norm. Univ., Nat. Sci. Ed. 23, No. 3, 305-307 (1999). MSC: 16N80 16N20 PDFBibTeX XMLCite \textit{Y. Wang}, J. Hebei Norm. Univ., Nat. Sci. Ed. 23, No. 3, 305--307 (1999; Zbl 0960.16025)
Su, Lianqing; Li, Fachao A discussion on convergences for uniformly symmetric difference metrics. (Chinese. English summary) Zbl 0956.26503 J. Hebei Norm. Univ., Nat. Sci. Ed. 23, No. 3, 302-304, 317 (1999). MSC: 26E50 03E72 PDFBibTeX XMLCite \textit{L. Su} and \textit{F. Li}, J. Hebei Norm. Univ., Nat. Sci. Ed. 23, No. 3, 302--304, 317 (1999; Zbl 0956.26503)
Li, Fachao; Li, Lixia Compactness for \(p\)-mean symmetric difference metrics. (Chinese. English summary) Zbl 0956.26504 J. Hebei Norm. Univ., Nat. Sci. Ed. 23, No. 3, 297-301 (1999). MSC: 26E50 03E72 PDFBibTeX XMLCite \textit{F. Li} and \textit{L. Li}, J. Hebei Norm. Univ., Nat. Sci. Ed. 23, No. 3, 297--301 (1999; Zbl 0956.26504)
Liang, Zhihe Properties of graceful graphs and gracefulness of five kinds of \(C_{4k}\cup P_n\). (Chinese. English summary) Zbl 0960.05092 J. Hebei Norm. Univ., Nat. Sci. Ed. 23, No. 3, 294-296, 307 (1999). MSC: 05C78 PDFBibTeX XMLCite \textit{Z. Liang}, J. Hebei Norm. Univ., Nat. Sci. Ed. 23, No. 3, 294--296, 307 (1999; Zbl 0960.05092)
Gao, Suogang; Wang, Chunsen; Guo, Chunling A construction of Cartesian authentication code from symplectic geometry. (Chinese. English summary) Zbl 0957.94029 J. Hebei Norm. Univ., Nat. Sci. Ed. 23, No. 3, 289-293 (1999). MSC: 94A62 51E22 PDFBibTeX XMLCite \textit{S. Gao} et al., J. Hebei Norm. Univ., Nat. Sci. Ed. 23, No. 3, 289--293 (1999; Zbl 0957.94029)