Edit Profile (opens in new tab) Rival, Ivan (b. 1947 d. 2002) Co-Author Distance Author ID: rival.ivan Published as: Rival, Ivan; Rival, I. Homepage: https://ivanrival.com/ External Links: MGP · Wikidata · Google Scholar · dblp · IdRef Documents Indexed: 127 Publications since 1972 6 Contributions as Editor Biographic References: 2 Publications Co-Authors: 52 Co-Authors with 106 Joint Publications 1,743 Co-Co-Authors all top 5 Co-Authors 27 single-authored 14 Duffus, Dwight 12 Zaguia, Nejib 11 Nowakowski, Richard Joseph 10 Sands, Bill 9 Urrutia Galicia, Jorge L. 7 Pouzet, Maurice 6 Czyzowicz, Jurek 6 Pelc, Andrzej 5 Liu, Weiping 5 Poguntke, Werner 4 Davey, Brian A. 3 Ewacha, Kevin 3 Jónsson, Bjarni 3 Kelly, David 3 Reuter, Klaus 2 Bandelt, Hans-Jürgen 2 El-Zahar, Mohamed H. 2 Ganter, Bernhard 2 Hashemi, S. Mehdi 2 Kisielewicz, Andrzej Piotr 2 Quackenbush, Robert W. 2 Rutkowski, Aleksander 2 Wille, Rudolf 1 Al-Thukair, Fawzi A. 1 Alzohairi, Mohammad 1 Antonius, Rachad 1 Bisztriczky, Tibor 1 Björner, Anders 1 Bollobás, Béla 1 Di Battista, Giuseppe 1 Fofanova, Tatiana 1 Foldes, Stephan 1 Galvin, Fred 1 Gaskill, Herbert S. 1 Ginsburg, John 1 Grant, Ken 1 Grätzer, George 1 Hell, Pavol 1 Jawhari, El Mostapha 1 Jégou, Roland 1 Kostochka, Aleksandr Vasil’evich 1 Lee, Jeh Gwon 1 Li, Weixuan 1 Lonc, Zbigniew 1 Nevermann, Peter 1 Rabinovitch, Issie 1 Rosenberg, Ivo G. 1 Ruckelshausen, W. 1 Simonovits, Miklós 1 Stanford, Miriam 1 Steiner, George 1 Winkler, Peter M. all top 5 Serials 18 Discrete Mathematics 17 Algebra Universalis 11 Canadian Journal of Mathematics 11 Order 10 Proceedings of the American Mathematical Society 4 Canadian Mathematical Bulletin 4 Journal of Combinatorial Theory. Series A 3 NATO ASI Series. Series C. Mathematical and Physical Sciences 2 Discrete Applied Mathematics 2 Acta Scientiarum Mathematicarum 2 Archiv der Mathematik 2 Journal of the London Mathematical Society. Second Series 2 Theoretical Computer Science 2 Journal of the Australian Mathematical Society. Series A 1 Bulletin of the Australian Mathematical Society 1 Information Processing Letters 1 Journal of Combinatorics, Information & System Sciences 1 Journal of Combinatorial Theory. Series B 1 Journal of Graph Theory 1 Journal für die Reine und Angewandte Mathematik 1 Mathematica Slovaca 1 Nanta Mathematica 1 Operations Research 1 Pacific Journal of Mathematics 1 European Journal of Combinatorics 1 SIAM Journal on Algebraic and Discrete Methods 1 Combinatorica 1 Graphs and Combinatorics 1 SIAM Journal on Discrete Mathematics 1 Arab Journal of Mathematical Sciences 1 Contemporary Mathematics 1 Methods of Operations Research all top 5 Fields 117 Order, lattices, ordered algebraic structures (06-XX) 51 Combinatorics (05-XX) 17 Computer science (68-XX) 6 General and overarching topics; collections (00-XX) 6 Operations research, mathematical programming (90-XX) 5 General algebraic systems (08-XX) 3 Mathematical logic and foundations (03-XX) 3 Convex and discrete geometry (52-XX) 2 Manifolds and cell complexes (57-XX) 2 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 1 Functional analysis (46-XX) 1 Geometry (51-XX) 1 Differential geometry (53-XX) 1 General topology (54-XX) 1 Statistics (62-XX) Publications by Year all cited Publications top 5 cited Publications Citations contained in zbMATH Open 128 Publications have been cited 1,270 times in 711 Documents Cited by ▼ Year ▼ Planar lattices. Zbl 0312.06003 Kelly, David; Rival, Ivan 81 1975 A structure theory for ordered sets. Zbl 0459.06002 Duffus, Dwight; Rival, Ivan 64 1981 Fixed-edge theorem for graphs with loops. Zbl 0432.05030 Nowakowski, Richard; Rival, Ivan 54 1979 A fixed point theorem for finite partially orderes sets. Zbl 0357.06003 Rival, Ivan 53 1976 Optimal linear extensions by interchanging chains. Zbl 0523.06003 Rival, Ivan 47 1983 Lattice varieties covering the smallest non-modular variety. Zbl 0424.06004 Jonsson, Bjarni; Rival, Ivan 39 1979 Lattices with doubly irreducible elements. Zbl 0293.06003 Rival, Ivan 35 1974 The smallest graph variety containing all paths. Zbl 0511.05059 Nowakowski, Richard; Rival, Ivan 34 1983 Minimizing setups for cycle-free ordered sets. Zbl 0497.06002 Duffus, D.; Rival, I.; Winkler, P. 33 1982 Absolute retracts and varieties of reflexible graphs. Zbl 0627.05039 Hell, Pavol; Rival, Ivan 31 1987 Crowns, fences, and dismantlable lattices. Zbl 0271.06003 Kelly, David; Rival, Ivan 29 1974 Chains, antichains, and fibres. Zbl 0637.06001 Lonc, Zbigniew; Rival, Ivan 27 1987 Path length in the covering graph of a lattice. Zbl 0372.06005 Duffus, Dwight; Rival, Ivan 27 1977 Retracts and the fixed point problem for finite partially ordered sets. Zbl 0441.06003 Duffus, Dwight; Poguntke, Werner; Rival, Ivan 26 1980 The rank of a distributive lattice. Zbl 0421.06012 Rabinovitch, I.; Rival, I. 21 1979 Crowns in dismantlable partially ordered sets. Zbl 0421.06001 Duffus, D.; Rival, I. 20 1978 Antichain cutsets. Zbl 0557.06001 Rival, Ivan; Zaguia, Nejib 19 1985 A characterization of semi-distributivity. Zbl 0313.06002 Davey, B. A.; Poguntke, W.; Rival, I. 19 1975 Representing orders on the plane by translating convex figures. Zbl 0663.06004 Rival, Ivan; Urrutia, Jorge 18 1988 Bipartite graphs, upward drawings, and planarity. Zbl 0706.68081 Di Battista, Giuseppe; Liu, Wei-Ping; Rival, Ivan 18 1990 Spanning retracts of a partially ordered set. Zbl 0453.06003 Duffus, D.; Rival, I.; Simonovits, M. 18 1980 Antichains and finite sets that meet all maximal chains. Zbl 0606.06001 Ginsburg, J.; Rival, I.; Sands, B. 17 1986 Graphs orientable as distributive lattices. Zbl 0513.06004 Duffus, Dwight; Rival, Ivan 16 1983 Retracts of partially ordered sets. Zbl 0421.06002 Duffus, Dwight; Rival, Ivan 15 1979 Combinatorial inequalities for semimodular lattices of breadth two. Zbl 0423.06008 Rival, Ivan 15 1976 The problem of fixed points in ordered sets. Zbl 0448.06001 Rival, Ivan 15 1980 Maximal sublattices of finite distributive lattices. II. Zbl 0255.06003 Rival, Ivan 14 1974 Drawing orders with few slopes. Zbl 0731.06007 Czyzowicz, Jurek; Pelc, Andrzej; Rival, Ivan 14 1990 Holes in ordered sets. Zbl 0606.06002 Nevermann, Peter; Rival, Ivan 13 1985 Does almost every isotone, self-map have a fixed point? Zbl 0815.06002 Rival, I.; Rutkowski, A. 12 1994 Maximal sublattices of finite distributive lattices. Zbl 0231.06016 Rival, Ivan 12 1973 A logarithmic property for exponents of partially ordered sets. Zbl 0497.06004 Duffus, Dwight; Rival, Ivan 11 1978 Greedy linear extensions to minimize jumps. Zbl 0569.06001 El-Zahar, M. H.; Rival, I. 11 1985 Constructing greedy linear extensions by interchanging chains. Zbl 0611.06003 Rival, Ivan; Zaguia, Nejib 11 1986 Dimension two, fixed points and dismantlable ordered sets. Zbl 0867.06003 Fofanova, Tatiana; Rival, Ivan; Rutkowski, Aleksander 11 1996 The smallest order variety containing all chains. Zbl 0467.06002 Rival, Ivan; Wille, Rudolf 11 1981 A Ramsey-type theorem for traceable graphs. Zbl 0477.05048 Galvin, F.; Rival, I.; Sands, B. 11 1982 Graphical data structures for ordered sets. Zbl 1261.68047 Rival, Ivan 10 1989 Every countable lattice is a retract of a direct product of chains. Zbl 0545.06005 Pouzet, Maurice; Rival, Ivan 9 1984 Light sources, obstructions and spherical orders. Zbl 0757.06002 Foldes, Stephan; Rival, Ivan; Urrutia, Jorge 9 1992 Exponents of finite simple lattices. Zbl 0391.06006 Davey, B. A.; Duffus, D.; Quackenbush, R. W.; Rival, I. 9 1978 Complete ordered sets with no infinite antichains. Zbl 0466.06002 Duffus, D.; Pouzet, M.; Rival, I. 9 1981 The diagram invariant problem for planar lattices. Zbl 0628.06005 Jégou, Roland; Nowakowski, Richard; Rival, Ivan 8 1987 Exponents of lattice-ordered algebras. Zbl 0499.06015 Davey, Brian A.; Rival, Ivan 8 1982 On a class of isometric subgraphs of a graph. Zbl 0512.05059 Nowakowski, Richard; Rival, Ivan 8 1982 Retract rigid Cartesian products of graphs. Zbl 0699.05047 Nowakowski, Richard; Rival, Ivan 8 1988 A note on the congruence lattice of a finitely generated algebra. Zbl 0399.08001 Rival, Ivan; Sands, Bill 8 1978 The complexity of upward drawings on spheres. Zbl 0913.06001 Hashemi, S. Mehdi; Rival, Ivan; Kisielewicz, Andrzej 7 1998 Perpendicular orders. Zbl 0818.06001 Rival, Ivan; Zaguia, Nejib 7 1995 A classification of reflexive graphs: The use of ”holes”. Zbl 0618.05041 Jawhari, El Moustafa; Pouzet, Maurice; Rival, Ivan 7 1986 Clones, order varieties, near unanimity functions and holes. Zbl 0734.06001 Quackenbush, R. W.; Rival, I.; Rosenberg, I. G. 7 1990 The maximal size of the covering graph of a lattice. Zbl 0424.05045 Bollobas, Bela; Rival, Ivan 7 1979 Is there a diagram invariant? Zbl 0665.06001 Pouzet, Maurice; Rival, Ivan 6 1989 Automorphisms, isotone self-maps and cycle-free orders. Zbl 0833.06005 Liu, Wei-Ping; Rival, Ivan; Zaguia, Nejib 6 1995 A generalized permutahedron. Zbl 0833.06004 Pouzet, M.; Reuter, K.; Rival, I.; Zaguia, N. 6 1995 Dilworth’s covering theorem for modular lattices: A simple proof. Zbl 0302.06013 Ganter, Bernhard; Rival, Ivan 6 1973 Finite sublattices of three-generated lattices. Zbl 0326.06003 Davey, Brian A.; Rival, Ivan 6 1976 Crooked diagrams with few slopes. Zbl 0747.05047 Czyzowicz, J.; Pelc, A.; Rival, I.; Urrutia, J. 6 1990 Structure results for function lattices. Zbl 0381.06006 Duffus, D.; Jonsson, B.; Rival, I. 6 1978 A note on fixed points in semimodular lattices. Zbl 0441.06007 Björner, Anders; Rival, Ivan 6 1980 Reading, drawing, and order. Zbl 0814.06001 Rival, Ivan 6 1993 Approximating the number of linear extensions. Zbl 0895.06002 Ewacha, Kevin; Rival, Ivan; Zaguia, Nejib 5 1997 A note on Whitman’s property for free lattices. Zbl 0294.06003 Antonius, Rachad; Rival, Ivan 5 1974 Certain partially ordered sets of dimension three. Zbl 0308.06003 Kelly, David; Rival, Ivan 5 1975 Some order theoretical ideas about scheduling. Zbl 0587.90056 Rival, Ivan 5 1985 Representing orders on the plane by translating points and lines. Zbl 0709.06002 Nowakowski, Richard; Rival, Ivan; Urrutia, Jorge 5 1990 Lattices contained in planar orders are planar. Zbl 0778.05031 Nowakowski, Richard; Rival, Ivan; Urrutia, Jorge 5 1992 An exchange property for modular lattices. Zbl 0394.06005 Gaskill, Herbert S.; Rival, Ivan 5 1978 On the ubiquity of herringbones in finitely generated lattices. Zbl 0465.06005 Rival, I.; Ruckelshausen, W.; Sands, B. 5 1981 Which ordered sets have a complete linear extension? Zbl 0479.06001 Pouzet, Maurice; Rival, Ivan 4 1981 The retract construction. Zbl 0491.06003 Rival, Ivan 4 1982 Small representations of finite distributive lattices as congruence lattices. Zbl 0822.06009 Grätzer, George; Rival, Ivan; Zaguia, Nejib 4 1995 The diagram. Zbl 0558.05059 Rival, Ivan 4 1985 Projective images of modular (distributive, complemented) lattices are modular (distributive, complemented). Zbl 0256.06005 Rival, I. 4 1972 Weak embeddings and embeddings of finite distributive lattices. Zbl 0356.06012 Rival, Ivan; Sands, Bill 4 1975 Examples of jump-critical ordered sets. Zbl 0573.06005 El-Zahar, M. H.; Rival, I. 4 1985 Greedy linear extensions with constraints. Zbl 0616.05060 Rival, Ivan; Zaguia, Nejib 4 1987 Inversions, cuts, and orientations. Zbl 0721.06001 Liu, Wei Ping; Rival, Ivan 4 1991 Orders with level diagrams. Zbl 0721.06002 Pelc, Andrzej; Rival, Ivan 4 1991 Motion planning, two-directional point representations, and ordered sets. Zbl 0732.68107 Al-Thukair, Fawzi; Pelc, Andrzej; Rival, Ivan; Urrutia, Jorge 4 1991 Lattices freely generated by partially ordered sets: which can be ”drawn”? Zbl 0416.06011 Rival, Ivan; Wille, Rudolf 4 1979 On the adjacency of vertices to the vertices of an infinite subgraph. Zbl 0426.05045 Rival, Ivan; Sands, Bill 4 1980 Effective constructions of cutsets for finite and infinite ordered sets. Zbl 0629.06004 Rival, Ivan; Zaguia, Nejib 3 1987 Ordered sets. Proceedings of the NATO Advanced Study Institute held at Banff, Canada, August 28 to September 12, 1981. Zbl 0484.00004 3 1982 Graphs and order. The role of graphs in the theory of ordered sets and its applications. (Proceedings of the NATO Advanced Study Institute on Graphs and Order, Banff, Canada, May 18-31, 1984). Zbl 0549.00002 3 1985 The endomorphism spectrum of an ordered set. Zbl 0849.06002 Grant, Ken; Nowakowski, R. J.; Rival, Ivan 3 1995 Upward drawings to fit surfaces. Zbl 0953.57500 Hashemi, S. M.; Rival, I. 3 1994 Dimension invariance of subdivisions. Zbl 0983.06001 Lee, Jeh Gwon; Liu, Wei-Ping; Nowakowski, Richard; Rival, Ivan 3 2001 Algorithms and order. Proceedings of the NATO Advanced Study Institute, Ottawa, Canada, 31 May – 13 June 1987. Zbl 0709.68004 3 1989 Galleries, light matchings and visibility graphs. Zbl 0766.05091 Czyzowicz, Jurek; Rival, Ivan; Urrutia, Jorge 3 1989 Critical edges in subdirectly irreducible lattices. Zbl 0367.06006 Jonsson, Bjarni; Rival, Ivan 3 1977 Separable subsets of a finite lattice. Zbl 0422.06001 Duffus, Dwight; Rival, Ivan 3 1978 Classifying graphs by intersecting disks. Zbl 0634.05061 Bandelt, Hans-Jürgen; Rival, Ivan 2 1985 Pictures in lattice theory. Zbl 0493.06003 Rival, Ivan; Sands, Bill 2 1982 Linear extensions of finite ordered sets. Zbl 0551.06003 Rival, Ivan 2 1984 The pagenumber of spherical lattices is unbounded. Zbl 0996.05040 Alzohairi, Mohammad; Rival, Ivan; Kostochka, Alexandr 2 2001 Finite sublattices generated by order-isomorphic subsets. Zbl 0287.06001 Poguntke, Werner; Rival, Ivan 2 1974 Finite four-generated simple lattices contain all finite lattices. Zbl 0298.06007 Poguntke, Werner; Rival, Ivan 2 1976 A note on linear extensions of irreducible elements in a finite lattice. Zbl 0356.06018 Rival, Ivan 2 1976 Diagrams, orientations, and varieties. Zbl 0697.06003 Bandelt, Hans-Jürgen; Rival, Ivan 2 1989 Dimension invariance of subdivisions. Zbl 0983.06001 Lee, Jeh Gwon; Liu, Wei-Ping; Nowakowski, Richard; Rival, Ivan 3 2001 The pagenumber of spherical lattices is unbounded. Zbl 0996.05040 Alzohairi, Mohammad; Rival, Ivan; Kostochka, Alexandr 2 2001 The complexity of upward drawings on spheres. Zbl 0913.06001 Hashemi, S. Mehdi; Rival, Ivan; Kisielewicz, Andrzej 7 1998 Approximating the number of linear extensions. Zbl 0895.06002 Ewacha, Kevin; Rival, Ivan; Zaguia, Nejib 5 1997 Dimension two, fixed points and dismantlable ordered sets. Zbl 0867.06003 Fofanova, Tatiana; Rival, Ivan; Rutkowski, Aleksander 11 1996 Perpendicular orders. Zbl 0818.06001 Rival, Ivan; Zaguia, Nejib 7 1995 Automorphisms, isotone self-maps and cycle-free orders. Zbl 0833.06005 Liu, Wei-Ping; Rival, Ivan; Zaguia, Nejib 6 1995 A generalized permutahedron. Zbl 0833.06004 Pouzet, M.; Reuter, K.; Rival, I.; Zaguia, N. 6 1995 Small representations of finite distributive lattices as congruence lattices. Zbl 0822.06009 Grätzer, George; Rival, Ivan; Zaguia, Nejib 4 1995 The endomorphism spectrum of an ordered set. Zbl 0849.06002 Grant, Ken; Nowakowski, R. J.; Rival, Ivan 3 1995 Order, ice and surfaces. Zbl 0836.06002 Rival, Ivan 1 1995 Images of simple lattice polynomials. Zbl 0819.06005 Rival, I.; Zaguia, N. 1 1995 Does almost every isotone, self-map have a fixed point? Zbl 0815.06002 Rival, I.; Rutkowski, A. 12 1994 Upward drawings to fit surfaces. Zbl 0953.57500 Hashemi, S. M.; Rival, I. 3 1994 Reading, drawing, and order. Zbl 0814.06001 Rival, Ivan 6 1993 Problems about planar orders. Zbl 0844.06001 Rival, Ivan 1 1993 Every triangle-free planar graph has a planar upward drawing. Zbl 0790.05034 Kisielewicz, Andrzej; Rival, Ivan 1 1993 Light sources, obstructions and spherical orders. Zbl 0757.06002 Foldes, Stephan; Rival, Ivan; Urrutia, Jorge 9 1992 Lattices contained in planar orders are planar. Zbl 0778.05031 Nowakowski, Richard; Rival, Ivan; Urrutia, Jorge 5 1992 Algebraic aspects of partition lattices. Zbl 0772.06005 Rival, Ivan; Stanford, Miriam 2 1992 Genus of orders and lattices. Zbl 0767.68099 Reuter, Klaus; Rival, Ivan 1 1992 Order, invariance and visibility. Zbl 0875.68905 Rival, Ivan 1 1992 Representing orders by moving figures in space. Zbl 0783.52011 Rival, Ivan; Urrutia, Jorge 1 1992 Inversions, cuts, and orientations. Zbl 0721.06001 Liu, Wei Ping; Rival, Ivan 4 1991 Orders with level diagrams. Zbl 0721.06002 Pelc, Andrzej; Rival, Ivan 4 1991 Motion planning, two-directional point representations, and ordered sets. Zbl 0732.68107 Al-Thukair, Fawzi; Pelc, Andrzej; Rival, Ivan; Urrutia, Jorge 4 1991 Enumerating orientations of ordered sets. Zbl 0727.06007 Liu, Wei-Ping; Rival, Ivan 2 1991 Galleries and light matchings: Fat cooperative guards. Zbl 0728.05023 Czyzowicz, Jurek; Rival, Ivan; Urrutia, Jorge 2 1991 Order, genus, and diagram invariance. Zbl 0737.06002 Ewacha, Kevin; Li, Weixuan; Rival, Ivan 2 1991 Bipartite graphs, upward drawings, and planarity. Zbl 0706.68081 Di Battista, Giuseppe; Liu, Wei-Ping; Rival, Ivan 18 1990 Drawing orders with few slopes. Zbl 0731.06007 Czyzowicz, Jurek; Pelc, Andrzej; Rival, Ivan 14 1990 Clones, order varieties, near unanimity functions and holes. Zbl 0734.06001 Quackenbush, R. W.; Rival, I.; Rosenberg, I. G. 7 1990 Crooked diagrams with few slopes. Zbl 0747.05047 Czyzowicz, J.; Pelc, A.; Rival, I.; Urrutia, J. 6 1990 Representing orders on the plane by translating points and lines. Zbl 0709.06002 Nowakowski, Richard; Rival, Ivan; Urrutia, Jorge 5 1990 Planar ordered sets of width two. Zbl 0753.06001 Czyzowicz, Jurek; Pelc, Andrzej; Rival, Ivan 2 1990 Unfolding weighted consensus orders into consistent numerical scales. Zbl 0709.90005 Czyzowicz, J.; Pelc, A.; Rival, I. 1 1990 Permutation schedules for flow shops with precedence constraints. Zbl 0723.90039 Ewacha, Kevin; Rival, Ivan; Steiner, George 1 1990 Graphical data structures for ordered sets. Zbl 1261.68047 Rival, Ivan 10 1989 Is there a diagram invariant? Zbl 0665.06001 Pouzet, Maurice; Rival, Ivan 6 1989 Algorithms and order. Proceedings of the NATO Advanced Study Institute, Ottawa, Canada, 31 May – 13 June 1987. Zbl 0709.68004 3 1989 Galleries, light matchings and visibility graphs. Zbl 0766.05091 Czyzowicz, Jurek; Rival, Ivan; Urrutia, Jorge 3 1989 Diagrams, orientations, and varieties. Zbl 0697.06003 Bandelt, Hans-Jürgen; Rival, Ivan 2 1989 Representing orders on the plane by translating convex figures. Zbl 0663.06004 Rival, Ivan; Urrutia, Jorge 18 1988 Retract rigid Cartesian products of graphs. Zbl 0699.05047 Nowakowski, Richard; Rival, Ivan 8 1988 Absolute retracts and varieties of reflexible graphs. Zbl 0627.05039 Hell, Pavol; Rival, Ivan 31 1987 Chains, antichains, and fibres. Zbl 0637.06001 Lonc, Zbigniew; Rival, Ivan 27 1987 The diagram invariant problem for planar lattices. Zbl 0628.06005 Jégou, Roland; Nowakowski, Richard; Rival, Ivan 8 1987 Greedy linear extensions with constraints. Zbl 0616.05060 Rival, Ivan; Zaguia, Nejib 4 1987 Effective constructions of cutsets for finite and infinite ordered sets. Zbl 0629.06004 Rival, Ivan; Zaguia, Nejib 3 1987 Antichains and finite sets that meet all maximal chains. Zbl 0606.06001 Ginsburg, J.; Rival, I.; Sands, B. 17 1986 Constructing greedy linear extensions by interchanging chains. Zbl 0611.06003 Rival, Ivan; Zaguia, Nejib 11 1986 A classification of reflexive graphs: The use of ”holes”. Zbl 0618.05041 Jawhari, El Moustafa; Pouzet, Maurice; Rival, Ivan 7 1986 Constructing \(N\)-free, jump-critical ordered sets. Zbl 0627.06006 Rival, Ivan; Zaguia, Nejib 1 1986 Stories about order and the letter N (en). Zbl 0595.06001 Rival, Ivan 1 1986 Subdiagrams equal in number to their duals. Zbl 0613.06006 Reuter, Klaus; Rival, Ivan 1 1986 Antichain cutsets. Zbl 0557.06001 Rival, Ivan; Zaguia, Nejib 19 1985 Holes in ordered sets. Zbl 0606.06002 Nevermann, Peter; Rival, Ivan 13 1985 Greedy linear extensions to minimize jumps. Zbl 0569.06001 El-Zahar, M. H.; Rival, I. 11 1985 Some order theoretical ideas about scheduling. Zbl 0587.90056 Rival, Ivan 5 1985 The diagram. Zbl 0558.05059 Rival, Ivan 4 1985 Examples of jump-critical ordered sets. Zbl 0573.06005 El-Zahar, M. H.; Rival, I. 4 1985 Graphs and order. The role of graphs in the theory of ordered sets and its applications. (Proceedings of the NATO Advanced Study Institute on Graphs and Order, Banff, Canada, May 18-31, 1984). Zbl 0549.00002 3 1985 Classifying graphs by intersecting disks. Zbl 0634.05061 Bandelt, Hans-Jürgen; Rival, Ivan 2 1985 Every countable lattice is a retract of a direct product of chains. Zbl 0545.06005 Pouzet, Maurice; Rival, Ivan 9 1984 Linear extensions of finite ordered sets. Zbl 0551.06003 Rival, Ivan 2 1984 Optimal linear extensions by interchanging chains. Zbl 0523.06003 Rival, Ivan 47 1983 The smallest graph variety containing all paths. Zbl 0511.05059 Nowakowski, Richard; Rival, Ivan 34 1983 Graphs orientable as distributive lattices. Zbl 0513.06004 Duffus, Dwight; Rival, Ivan 16 1983 Quotients of complete ordered sets. Zbl 0538.06004 Pouzet, Maurice; Rival, Ivan 1 1983 Minimizing setups for cycle-free ordered sets. Zbl 0497.06002 Duffus, D.; Rival, I.; Winkler, P. 33 1982 A Ramsey-type theorem for traceable graphs. Zbl 0477.05048 Galvin, F.; Rival, I.; Sands, B. 11 1982 Exponents of lattice-ordered algebras. Zbl 0499.06015 Davey, Brian A.; Rival, Ivan 8 1982 On a class of isometric subgraphs of a graph. Zbl 0512.05059 Nowakowski, Richard; Rival, Ivan 8 1982 The retract construction. Zbl 0491.06003 Rival, Ivan 4 1982 Ordered sets. Proceedings of the NATO Advanced Study Institute held at Banff, Canada, August 28 to September 12, 1981. Zbl 0484.00004 3 1982 Pictures in lattice theory. Zbl 0493.06003 Rival, Ivan; Sands, Bill 2 1982 How many four-generated simple lattices? Zbl 0515.06007 Rival, I.; Sands, B. 1 1982 A structure theory for ordered sets. Zbl 0459.06002 Duffus, Dwight; Rival, Ivan 64 1981 The smallest order variety containing all chains. Zbl 0467.06002 Rival, Ivan; Wille, Rudolf 11 1981 Complete ordered sets with no infinite antichains. Zbl 0466.06002 Duffus, D.; Pouzet, M.; Rival, I. 9 1981 On the ubiquity of herringbones in finitely generated lattices. Zbl 0465.06005 Rival, I.; Ruckelshausen, W.; Sands, B. 5 1981 Which ordered sets have a complete linear extension? Zbl 0479.06001 Pouzet, Maurice; Rival, Ivan 4 1981 Retracts and the fixed point problem for finite partially ordered sets. Zbl 0441.06003 Duffus, Dwight; Poguntke, Werner; Rival, Ivan 26 1980 Spanning retracts of a partially ordered set. Zbl 0453.06003 Duffus, D.; Rival, I.; Simonovits, M. 18 1980 The problem of fixed points in ordered sets. Zbl 0448.06001 Rival, Ivan 15 1980 A note on fixed points in semimodular lattices. Zbl 0441.06007 Björner, Anders; Rival, Ivan 6 1980 On the adjacency of vertices to the vertices of an infinite subgraph. Zbl 0426.05045 Rival, Ivan; Sands, Bill 4 1980 A note on weak embeddings of distributive lattices. Zbl 0431.06009 Duffus, Dwight; Rival, Ivan 1 1980 Continuous, slope-preserving maps of simple closed curves. Zbl 0456.53002 Bisztriczky, Tibor; Rival, Ivan 1 1980 Fixed-edge theorem for graphs with loops. Zbl 0432.05030 Nowakowski, Richard; Rival, Ivan 54 1979 Lattice varieties covering the smallest non-modular variety. Zbl 0424.06004 Jonsson, Bjarni; Rival, Ivan 39 1979 The rank of a distributive lattice. Zbl 0421.06012 Rabinovitch, I.; Rival, I. 21 1979 Retracts of partially ordered sets. Zbl 0421.06002 Duffus, Dwight; Rival, Ivan 15 1979 The maximal size of the covering graph of a lattice. Zbl 0424.05045 Bollobas, Bela; Rival, Ivan 7 1979 Lattices freely generated by partially ordered sets: which can be ”drawn”? Zbl 0416.06011 Rival, Ivan; Wille, Rudolf 4 1979 Planar sublattices of a free lattice, II. Zbl 0403.06003 Rival, Ivan; Sands, Bill 2 1979 Crowns in dismantlable partially ordered sets. Zbl 0421.06001 Duffus, D.; Rival, I. 20 1978 A logarithmic property for exponents of partially ordered sets. Zbl 0497.06004 Duffus, Dwight; Rival, Ivan 11 1978 Exponents of finite simple lattices. Zbl 0391.06006 Davey, B. A.; Duffus, D.; Quackenbush, R. W.; Rival, I. 9 1978 A note on the congruence lattice of a finitely generated algebra. Zbl 0399.08001 Rival, Ivan; Sands, Bill 8 1978 ...and 28 more Documents all cited Publications top 5 cited Publications all top 5 Cited by 672 Authors 47 Rival, Ivan 28 Czédli, Gábor 18 Pouzet, Maurice 16 Duffus, Dwight 15 Bandelt, Hans-Jürgen 15 Trotter, William T. jun. 13 Schröder, Bernd S. W. 11 Nation, James B. 11 Nowakowski, Richard Joseph 10 Jakubíková-Studenovská, Danica 10 Zaguia, Nejib 9 Urrutia Galicia, Jorge L. 9 Zaguia, Imed 8 Shan, Erfang 7 Hell, Pavol 7 Rutkowski, Aleksander 7 Sands, Bill 7 Tamassia, Roberto 6 Chepoi, Victor D. 6 Di Battista, Giuseppe 6 Faigle, Ulrich 6 Farley, Jonathan David 6 Ginsburg, John 6 Grätzer, George 6 Kierstead, Henry A. 6 Klavžar, Sandi 6 Larose, Benoit 6 Li, Boyu 6 Liang, Zuosong 6 Liotta, Giuseppe 6 Polat, Norbert 6 Sauer, Norbert W. 6 Schmidt, Elegius Tamas 6 Stern, Manfred 6 Waphare, B. N. 6 Zádori, László 5 Andreae, Thomas 5 Björner, Anders 5 Bouchitté, Vincent 5 Habib, Michel 5 Kang, Liying 5 Liu, Weiping 5 Montecchiani, Fabrizio 5 Nevermann, Peter 5 Poguntke, Werner 5 Schmid, Jurg 4 Adams, Michael E. 4 Adaricheva, Kira Vladislavovna 4 Brucker, François 4 Chen, Chuan-Chong 4 Czyzowicz, Jurek 4 Delhommé, Christian 4 Di Giacomo, Emilio 4 Ganter, Bernhard 4 Jakubík, Ján 4 Joshi, Vinayak V. 4 Koh, Khee Meng 4 Libkin, Leonid O. 4 Monjardet, Bernard 4 Pawar, Madhukar M. 4 Pelc, Andrzej 4 Quackenbush, Robert W. 4 Quilliot, Alain 4 Reuter, Klaus 4 Santocanale, Luigi 4 Schrader, Rainer 4 Sharary, Ahmad H. 4 Siggers, Mark H. 4 Steiner, George 4 Vikas, Narayan 4 Wille, Rudolf 4 Zaretzky, Alba N. 3 Assem, Ibrahim 3 Bedon, Nicolas 3 Bekos, Michael A. 3 Bhamre, Vandana P. 3 Brandenburg, Franz-Josef 3 Brualdi, Richard Anthony 3 Chastand, Marc 3 Dalmau, Víctor 3 Davey, Brian A. 3 Didimo, Walter 3 El-Zahar, Mohamed H. 3 Feder, Tomás 3 Felsner, Stefan 3 Fournier, Gilles 3 Gorbunov, Viktor Aleksandrovich 3 Jégou, Roland 3 Jung, Hyung Chan 3 Kharat, Vilas S. 3 Kim, Hee Sik 3 Klawitter, Jonathan 3 Koyda, Maren 3 Kukieła, Michał Jerzy 3 Kung, Joseph P. S. 3 Larrion, Francisco 3 Leguizamon, Carlos A. 3 Liu, Longcheng 3 Lonc, Zbigniew 3 McKenzie, Ralph N. ...and 572 more Authors all top 5 Cited in 121 Serials 145 Order 122 Discrete Mathematics 75 Algebra Universalis 32 Discrete Applied Mathematics 20 European Journal of Combinatorics 18 Czechoslovak Mathematical Journal 15 Journal of Combinatorial Theory. Series A 14 Theoretical Computer Science 10 Journal of Combinatorial Theory. Series B 9 Mathematica Slovaca 8 Proceedings of the American Mathematical Society 8 Graphs and Combinatorics 8 Computational Geometry 7 The Electronic Journal of Combinatorics 6 Algorithmica 6 SIAM Journal on Discrete Mathematics 5 Information Processing Letters 5 Archiv der Mathematik 5 Journal of Graph Theory 5 Transactions of the American Mathematical Society 4 Acta Scientiarum Mathematicarum 4 Journal of Computer and System Sciences 4 Combinatorica 4 Discrete & Computational Geometry 4 Journal of Combinatorial Optimization 4 Journal of Graph Algorithms and Applications 3 Communications in Algebra 3 Algebra and Logic 3 The Journal of the Indian Mathematical Society. New Series 3 Semigroup Forum 3 Advances in Applied Mathematics 3 Mathematical and Computer Modelling 3 Mathematica Bohemica 3 International Journal of Algebra and Computation 3 Fixed Point Theory and Applications 3 Asian-European Journal of Mathematics 3 Arabian Journal of Mathematics 3 Categories and General Algebraic Structures with Applications 2 Bulletin of the Australian Mathematical Society 2 Periodica Mathematica Hungarica 2 Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica 2 Advances in Mathematics 2 Journal of Algebra 2 Memoirs of the American Mathematical Society 2 Studia Logica 2 Topology and its Applications 2 Operations Research Letters 2 Acta Applicandae Mathematicae 2 International Journal of Approximate Reasoning 2 International Journal of Foundations of Computer Science 2 Acta Mathematica Sinica. New Series 2 Distributed Computing 2 Journal of Mathematical Sciences (New York) 2 Mathematical Logic Quarterly (MLQ) 2 Journal of Mathematical Chemistry 2 Comptes Rendus. Mathématique. Académie des Sciences, Paris 2 Journal of Discrete Algorithms 2 Transactions on Combinatorics 1 American Mathematical Monthly 1 Computers & Mathematics with Applications 1 International Journal of Theoretical Physics 1 Journal of Mathematical Analysis and Applications 1 Mathematical Proceedings of the Cambridge Philosophical Society 1 Rocky Mountain Journal of Mathematics 1 Computing 1 Glasgow Mathematical Journal 1 Information Sciences 1 Journal of Computational and Applied Mathematics 1 Journal of Mathematical Psychology 1 Journal of Philosophical Logic 1 Journal of Pure and Applied Algebra 1 Journal of Soviet Mathematics 1 The Journal of Symbolic Logic 1 Kyungpook Mathematical Journal 1 Le Matematiche 1 Mathematische Nachrichten 1 Networks 1 Numerical Functional Analysis and Optimization 1 Pacific Journal of Mathematics 1 Proceedings of the Edinburgh Mathematical Society. Series II 1 Rendiconti del Seminario Matemàtico e Fisico di Milano 1 Rendiconti del Seminario Matematico della Università di Padova 1 SIAM Journal on Algebraic and Discrete Methods 1 Annals of Pure and Applied Logic 1 Advances in Mathematics (Beijing) 1 Science in China. Series A 1 International Journal of Computational Geometry & Applications 1 Aequationes Mathematicae 1 European Journal of Operational Research 1 Linear Algebra and its Applications 1 Mathematical Programming. Series A. Series B 1 The Australasian Journal of Combinatorics 1 Russian Mathematics 1 Acta Universitatis Matthiae Belii. Series Mathematics 1 Opuscula Mathematica 1 Annals of Mathematics and Artificial Intelligence 1 Theory of Computing Systems 1 Novi Sad Journal of Mathematics 1 Mathematical Methods of Operations Research 1 Journal of Shanghai University ...and 21 more Serials all top 5 Cited in 34 Fields 445 Order, lattices, ordered algebraic structures (06-XX) 296 Combinatorics (05-XX) 120 Computer science (68-XX) 73 General algebraic systems (08-XX) 29 Mathematical logic and foundations (03-XX) 29 General topology (54-XX) 21 Operations research, mathematical programming (90-XX) 17 Group theory and generalizations (20-XX) 15 Category theory; homological algebra (18-XX) 15 Convex and discrete geometry (52-XX) 14 Algebraic topology (55-XX) 13 Game theory, economics, finance, and other social and behavioral sciences (91-XX) 12 Manifolds and cell complexes (57-XX) 9 Biology and other natural sciences (92-XX) 8 Associative rings and algebras (16-XX) 7 History and biography (01-XX) 5 Operator theory (47-XX) 5 Geometry (51-XX) 4 Information and communication theory, circuits (94-XX) 3 Number theory (11-XX) 3 Commutative algebra (13-XX) 3 Probability theory and stochastic processes (60-XX) 3 Statistical mechanics, structure of matter (82-XX) 2 Dynamical systems and ergodic theory (37-XX) 2 Functional analysis (46-XX) 2 Global analysis, analysis on manifolds (58-XX) 2 Numerical analysis (65-XX) 2 Quantum theory (81-XX) 1 General and overarching topics; collections (00-XX) 1 Algebraic geometry (14-XX) 1 Nonassociative rings and algebras (17-XX) 1 Measure and integration (28-XX) 1 Integral transforms, operational calculus (44-XX) 1 Systems theory; control (93-XX) Citations by Year Wikidata Timeline The data are displayed as stored in Wikidata under a Creative Commons CC0 License. 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