Ageev, Alexander; Ye, Yinyu; Zhang, Jiawei Improved combinatorial approximation algorithms for the \(k\)-level facility location problem. (English) Zbl 1087.90037 SIAM J. Discrete Math. 18, No. 1, 207-217 (2004). MSC: 90B80 68W25 68W40 68Q25 90C27 90C59 PDF BibTeX XML Cite \textit{A. Ageev} et al., SIAM J. Discrete Math. 18, No. 1, 207--217 (2004; Zbl 1087.90037) Full Text: DOI
Ageev, Alexander; Hassin, Refael; Sviridenko, Maxim A 0. 5-approximation algorithm for MAX DICUT with given sizes of parts. (English) Zbl 0968.68198 SIAM J. Discrete Math. 14, No. 2, 246-255 (2001). MSC: 68W25 90C27 90C35 05C85 PDF BibTeX XML Cite \textit{A. Ageev} et al., SIAM J. Discrete Math. 14, No. 2, 246--255 (2001; Zbl 0968.68198) Full Text: DOI
Ageev, Alexander A. On finding critical independent and vertex sets. (English) Zbl 0798.05050 SIAM J. Discrete Math. 7, No. 2, 293-295 (1994). Reviewer: C.-Q.Zhang (Morgantown) MSC: 05C85 68R10 68Q25 PDF BibTeX XML Cite \textit{A. A. Ageev}, SIAM J. Discrete Math. 7, No. 2, 293--295 (1994; Zbl 0798.05050) Full Text: DOI