Edit Profile (opens in new tab) El-Zahar, Mohamed H. Compute Distance To: Compute Author ID: el-zahar.mohamed-h Published as: El-Zahar, Mohamed H.; El-Zahar, M. H.; El-Zahar, M.; El-Zahar, Mohamed more...less Documents Indexed: 36 Publications since 1984 Co-Authors: 20 Co-Authors with 32 Joint Publications 772 Co-Co-Authors all top 5 Co-Authors 4 single-authored 9 Sauer, Norbert W. 6 Khamis, Soheir Mohamed 4 Bayoumi, Bayoumi I. 3 Shaheen, Ramy S. 2 El-Latif, Yasser M. Abd 2 Khairat, Mahmoud Khairat Ahmed 2 Rival, Ivan 1 Bahig, Hatem M. 1 Erdős, Pál 1 Fateen, Lobna A. 1 Ghaleb, Fayed F. M. 1 Gravier, Sylvain 1 Hussein, Hussein Karam 1 Klobučar, Antoaneta 1 Mohamed, Zahraa E. 1 Nakamula, Ken 1 Nazzal, Khalida Mohammad 1 Pareek, Chandra Mohan 1 Schmerl, James H. 1 Zaguia, Nejib all top 5 Serials 7 Journal of the Egyptian Mathematical Society 6 Discrete Mathematics 5 Order 3 Combinatorica 2 Discrete Applied Mathematics 2 Ars Combinatoria 1 IEEE Transactions on Information Theory 1 Canadian Journal of Mathematics 1 Journal of Combinatorial Theory. Series B 1 Journal of Graph Theory 1 SIAM Journal on Algebraic and Discrete Methods 1 Bulletin of the Faculty of Science. C. Mathematics 1 Congressus Numerantium all top 5 Fields 25 Combinatorics (05-XX) 15 Order, lattices, ordered algebraic structures (06-XX) 6 Computer science (68-XX) 2 Numerical analysis (65-XX) 1 Mathematical logic and foundations (03-XX) 1 General algebraic systems (08-XX) 1 Number theory (11-XX) 1 Group theory and generalizations (20-XX) 1 Convex and discrete geometry (52-XX) 1 General topology (54-XX) 1 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 1 Information and communication theory, circuits (94-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 27 Publications have been cited 250 times in 217 Documents Cited by ▼ Year ▼ The chromatic number of the product of two 4-chromatic graphs is 4. Zbl 0575.05028El-Zahar, M.; Sauer, N. W. 53 1985 On circuits in graphs. Zbl 0548.05037El-Zahar, Mohamed H. 39 1984 Domination number of products of graphs. Zbl 0746.05067El-Zahar, M.; Pareek, C. M. 20 1991 On the existence of two non-neighboring subgraphs in a graph. Zbl 0596.05027El-Zahar, M.; Erdős, Paul 12 1985 Enumeration of ordered sets. Zbl 1261.06006El-Zahar, Mohamed H. 12 1989 Greedy linear extensions to minimize jumps. Zbl 0569.06001El-Zahar, M. H.; Rival, I. 11 1985 On the size of jump-critical ordered sets. Zbl 0559.06004El-Zahar, M. H.; Schmerl, J. H. 11 1984 Asymptotic enumeration of two-dimensional posets. Zbl 0676.06004El-Zahar, M.; Sauer, N. W. 9 1988 The length, the width and the cutset-number of finite ordered sets. Zbl 0582.06004El-Zahar, Mohamed; Sauer, Norbert 8 1985 On the total domination number of cross products of graphs. Zbl 1168.05344El-Zahar, Mohamed; Gravier, Sylvain; Klobucar, Antoaneta 8 2008 The indivisibility of the homogeneous \(K_ n\)-free graphs. Zbl 0682.05048El-Zahar, M.; Sauer, N. 8 1989 Ramsey-type properties of relational structures. Zbl 0746.03024El-Zahar, M.; Sauer, N. W. 7 1991 On the divisibility of homogeneous hypergraphs. Zbl 0803.05043El-Zahar, M.; Sauer, N. 6 1994 On the divisibility of homogeneous directed graphs. Zbl 0781.05025El-Zahar, M.; Sauer, N. W. 6 1993 On the domination number of the Cartesian product of the cycle of length \(n\) and any graph. Zbl 1112.05074El-Zahar, M. H.; Khamis, S. M.; Nazzal, Kh. M. 6 2007 Counting two-dimensional posets. Zbl 0802.06003Bayoumi, Bayoumi I.; El-Zahar, Mohamed H.; Khamis, Soheir M. 5 1994 A graph-theoretic version of the union-closed sets conjecture. Zbl 0885.05104El-Zahar, Mohamed H. 5 1997 Examples of jump-critical ordered sets. Zbl 0573.06005El-Zahar, M. H.; Rival, I. 4 1985 Antichains and cutsets. Zbl 0595.06003El-Zahar, Mohamed H.; Zaguia, Nejib 4 1986 Indivisible homogeneous directed graphs and a game for vertex partitions. Zbl 1058.05032El-Zahar, Mohamed; Sauer, N. W. 4 2005 Asymptotic enumeration of N-free partial orders. Zbl 0701.06004Bayoumi, Bayoumi I.; El-Zahar, Mohamed H.; Khamis, Soheir M. 3 1989 The domination number of \(C_8 \times C_n\) and \(C_9 \times C_n\). Zbl 0935.05070El-Zahar, Mohamed; Shaheen, Ramy S. 2 1999 On sphere orders. Zbl 0952.06001El-Zahar, Mohamed H.; Fateen, Lobna A. 2 1998 On the domination number of the product of two cycles. Zbl 1212.05192El-Zahar, Mohamed H.; Shaheen, Ramy S. 2 2007 Enumeration of series-parallel posets according to heights. Zbl 0967.06002El-Zahar, M. H.; Khamis, S. M. 1 2000 Algorithmic counting of types of UPO graphs and posets. Zbl 0971.06002Bayoumi, B. I.; El-Zahar, M. H.; Khamis, S. M. 1 1997 Bounds for the domination number of toroidal grid graphs. Zbl 1045.05071El-Zahar, Mohamed H.; Shaheen, Ramy S. 1 2002 On the total domination number of cross products of graphs. Zbl 1168.05344El-Zahar, Mohamed; Gravier, Sylvain; Klobucar, Antoaneta 8 2008 On the domination number of the Cartesian product of the cycle of length \(n\) and any graph. Zbl 1112.05074El-Zahar, M. H.; Khamis, S. M.; Nazzal, Kh. M. 6 2007 On the domination number of the product of two cycles. Zbl 1212.05192El-Zahar, Mohamed H.; Shaheen, Ramy S. 2 2007 Indivisible homogeneous directed graphs and a game for vertex partitions. Zbl 1058.05032El-Zahar, Mohamed; Sauer, N. W. 4 2005 Bounds for the domination number of toroidal grid graphs. Zbl 1045.05071El-Zahar, Mohamed H.; Shaheen, Ramy S. 1 2002 Enumeration of series-parallel posets according to heights. Zbl 0967.06002El-Zahar, M. H.; Khamis, S. M. 1 2000 The domination number of \(C_8 \times C_n\) and \(C_9 \times C_n\). Zbl 0935.05070El-Zahar, Mohamed; Shaheen, Ramy S. 2 1999 On sphere orders. Zbl 0952.06001El-Zahar, Mohamed H.; Fateen, Lobna A. 2 1998 A graph-theoretic version of the union-closed sets conjecture. Zbl 0885.05104El-Zahar, Mohamed H. 5 1997 Algorithmic counting of types of UPO graphs and posets. Zbl 0971.06002Bayoumi, B. I.; El-Zahar, M. H.; Khamis, S. M. 1 1997 On the divisibility of homogeneous hypergraphs. Zbl 0803.05043El-Zahar, M.; Sauer, N. 6 1994 Counting two-dimensional posets. Zbl 0802.06003Bayoumi, Bayoumi I.; El-Zahar, Mohamed H.; Khamis, Soheir M. 5 1994 On the divisibility of homogeneous directed graphs. Zbl 0781.05025El-Zahar, M.; Sauer, N. W. 6 1993 Domination number of products of graphs. Zbl 0746.05067El-Zahar, M.; Pareek, C. M. 20 1991 Ramsey-type properties of relational structures. Zbl 0746.03024El-Zahar, M.; Sauer, N. W. 7 1991 Enumeration of ordered sets. Zbl 1261.06006El-Zahar, Mohamed H. 12 1989 The indivisibility of the homogeneous \(K_ n\)-free graphs. Zbl 0682.05048El-Zahar, M.; Sauer, N. 8 1989 Asymptotic enumeration of N-free partial orders. Zbl 0701.06004Bayoumi, Bayoumi I.; El-Zahar, Mohamed H.; Khamis, Soheir M. 3 1989 Asymptotic enumeration of two-dimensional posets. Zbl 0676.06004El-Zahar, M.; Sauer, N. W. 9 1988 Antichains and cutsets. Zbl 0595.06003El-Zahar, Mohamed H.; Zaguia, Nejib 4 1986 The chromatic number of the product of two 4-chromatic graphs is 4. Zbl 0575.05028El-Zahar, M.; Sauer, N. W. 53 1985 On the existence of two non-neighboring subgraphs in a graph. Zbl 0596.05027El-Zahar, M.; Erdős, Paul 12 1985 Greedy linear extensions to minimize jumps. Zbl 0569.06001El-Zahar, M. H.; Rival, I. 11 1985 The length, the width and the cutset-number of finite ordered sets. Zbl 0582.06004El-Zahar, Mohamed; Sauer, Norbert 8 1985 Examples of jump-critical ordered sets. Zbl 0573.06005El-Zahar, M. H.; Rival, I. 4 1985 On circuits in graphs. Zbl 0548.05037El-Zahar, Mohamed H. 39 1984 On the size of jump-critical ordered sets. Zbl 0559.06004El-Zahar, M. H.; Schmerl, J. H. 11 1984 all cited Publications top 5 cited Publications all top 5 Cited by 276 Authors 13 Sauer, Norbert W. 13 Zhu, Xuding 9 Wang, Hong 8 El-Zahar, Mohamed H. 8 Tardif, Claude 6 Rival, Ivan 6 Yan, Jin 5 Khamis, Soheir Mohamed 5 Klavžar, Sandi 5 Zhou, Huishan 4 Bacsó, Gábor 4 Duffus, Dwight 4 Ginsburg, John 4 Henning, Michael Anthony 4 Laflamme, Claude 4 Nguyen Van Thé, Lionel 4 Ota, Katsuhiro 4 Surya, Sumati 4 Trotter, William T. jun. 4 Tuza, Zsolt 3 Brightwell, Graham R. 3 Egawa, Yoshimi 3 Hell, Pavol 3 Liu, Jiping 3 Liu, Juan 3 Meir, Nadav 3 Meng, Jixiang 3 Pouzet, Maurice 3 Todorcevic, Stevo B. 3 Wrochna, Marcin 3 Zaguia, Nejib 3 Zhang, Shaohua 3 Zhang, Xindong 3 Zhao, Yi 2 Adhikari, Avishek 2 Amar, Denise 2 Bayoumi, Bayoumi I. 2 Brešar, Boštjan 2 Brewster, Richard C. 2 Bruhn, Henning 2 Cai, Junqing 2 Cameron, Peter Jephson 2 Chen, Guantao 2 Chen, Xing 2 Delhommé, Christian 2 Fischer, Eldar 2 Fishburn, Peter Clingerman 2 Glaser, Lisa 2 Hajnal, András 2 Han, Jie 2 Hu, Futao 2 Jung, Hyung Chan 2 Kang, Liying 2 Kawarabayashi, Ken-ichi 2 Kierstead, Henry A. 2 Klobučar, Antoaneta 2 Kuzeljević, Boriša 2 Little, Charles 2 Liu, Daphne Der-Fen 2 Lo, Allan Siu Lun 2 Magnant, Colton 2 Mekiš, Gašper 2 Miller, Donald J. 2 Nandi, Mrinal 2 Parui, Subrata 2 Rall, Douglas F. 2 Saito, Akira 2 Sands, Bill 2 Sanhueza-Matamala, Nicolás 2 Schaudt, Oliver 2 Shan, Erfang 2 Shan, Songling 2 Shao, Zehui 2 Shokoufandeh, Ali 2 Simonyi, Gábor 2 Špacapan, Simon 2 Steiner, George 2 Teo, Kee Leong 2 Thomassé, Stéphan 2 Vidnyánszky, Zoltán 2 West, Douglas Brent 1 Alon, Noga M. 1 Anderson, Sarah E. 1 Aranda, Andrés 1 Balogh, József 1 Behrendt, Gerhard 1 Bermudo, Sergio 1 Bessy, Stéphane 1 Bharathi, Arpitha P. 1 Blokhuis, Aart 1 Bodirsky, Manuel 1 Bonato, Anthony 1 Böröczky, Karoly jun. 1 Bousquet-Mélou, Mireille 1 Brochet, J.-M. 1 Broere, Izak 1 Brouwer, Andries Evert 1 Brualdi, Richard Anthony 1 Carreno, José Juan 1 Carroy, Raphaël ...and 176 more Authors all top 5 Cited in 60 Serials 57 Discrete Mathematics 28 Order 11 Discrete Applied Mathematics 10 European Journal of Combinatorics 10 Graphs and Combinatorics 8 Journal of Combinatorial Theory. Series B 8 Journal of Graph Theory 6 Information Processing Letters 6 Combinatorica 6 The Electronic Journal of Combinatorics 4 Journal of Combinatorial Theory. Series A 4 Journal of Combinatorial Optimization 3 Classical and Quantum Gravity 2 Mathematica Slovaca 2 Theoretical Computer Science 2 Topology and its Applications 2 Discussiones Mathematicae. Graph Theory 1 Bulletin of the Australian Mathematical Society 1 Periodica Mathematica Hungarica 1 Advances in Mathematics 1 Applied Mathematics and Computation 1 Czechoslovak Mathematical Journal 1 Functional Analysis and its Applications 1 Inventiones Mathematicae 1 Journal of Computational and Applied Mathematics 1 The Journal of Symbolic Logic 1 Memoirs of the American Mathematical Society 1 Publications de l’Institut Mathématique. Nouvelle Série 1 Transactions of the American Mathematical Society 1 Advances in Applied Mathematics 1 SIAM Journal on Algebraic and Discrete Methods 1 Chinese Annals of Mathematics. Series B 1 Annals of Pure and Applied Logic 1 Discrete & Computational Geometry 1 SIAM Journal on Discrete Mathematics 1 Random Structures & Algorithms 1 Designs, Codes and Cryptography 1 Geometric and Functional Analysis. GAFA 1 European Journal of Operational Research 1 Acta Mathematica Sinica. New Series 1 Mathematical Programming. Series A. Series B 1 Experimental Mathematics 1 Applied Categorical Structures 1 Applied Mathematics. Series B (English Edition) 1 Combinatorics, Probability and Computing 1 Mathematical Logic Quarterly (MLQ) 1 Filomat 1 Complexity 1 Annals of Mathematics. Second Series 1 Living Reviews in Relativity 1 Bulletin of the Malaysian Mathematical Sciences Society. Second Series 1 Comptes Rendus. Mathématique. Académie des Sciences, Paris 1 Discrete Mathematics, Algorithms and Applications 1 International Journal of Combinatorics 1 Science China. Mathematics 1 Forum of Mathematics, Sigma 1 Computer Science Review 1 Journal of Applied and Computational Topology 1 Mathematical Foundations of Computing 1 DML. Discrete Mathematics Letters all top 5 Cited in 24 Fields 173 Combinatorics (05-XX) 52 Order, lattices, ordered algebraic structures (06-XX) 19 Mathematical logic and foundations (03-XX) 14 Computer science (68-XX) 10 Operations research, mathematical programming (90-XX) 5 General topology (54-XX) 5 Relativity and gravitational theory (83-XX) 3 General algebraic systems (08-XX) 3 Category theory; homological algebra (18-XX) 3 Group theory and generalizations (20-XX) 3 Topological groups, Lie groups (22-XX) 2 Measure and integration (28-XX) 2 Geometry (51-XX) 2 Algebraic topology (55-XX) 2 Quantum theory (81-XX) 2 Statistical mechanics, structure of matter (82-XX) 1 History and biography (01-XX) 1 Functional analysis (46-XX) 1 Manifolds and cell complexes (57-XX) 1 Probability theory and stochastic processes (60-XX) 1 Numerical analysis (65-XX) 1 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 1 Biology and other natural sciences (92-XX) 1 Information and communication theory, circuits (94-XX) Citations by Year