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Hajo Broersma

H. J. Broersma

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2009
89EEXueliang Li, Xiangmei Yao, Wenli Zhou, Hajo Broersma: Complexity of conditional colorability of graphs. Appl. Math. Lett. 22(3): 320-324 (2009)
88EEHajo Broersma, Matthew Johnson, Daniël Paulusma: Upper bounds and algorithms for parallel knock-out numbers. Theor. Comput. Sci. 410(14): 1319-1327 (2009)
2008
87 Hajo Broersma, Thomas Erlebach, Tom Friedetzky, Daniël Paulusma: Graph-Theoretic Concepts in Computer Science, 34th International Workshop, WG 2008, Durham, UK, June 30 - July 2, 2008. Revised Papers WG 2008
86EEHajo Broersma, Daniël Paulusma: Computing Sharp 2-Factors in Claw-Free Graphs. MFCS 2008: 193-204
85EEMingChu Li, Liming Xiong, H. J. Broersma: Connected even factors in claw-free graphs. Discrete Mathematics 308(11): 2282-2284 (2008)
84EEHajo Broersma, Gasper Fijavz, Tomás Kaiser, Roman Kuzel, Zdenek Ryjácek, Petr Vrána: Contractible subgraphs, Thomassen's conjecture and the dominating cycle conjecture for snarks. Discrete Mathematics 308(24): 6064-6077 (2008)
83EELigong Wang, Hajo Broersma, Cornelis Hoede, Xueliang Li, Georg Still: Some families of integral graphs. Discrete Mathematics 308(24): 6383-6391 (2008)
82EEHajo Broersma, Stefan S. Dantchev, Matthew Johnson, Stefan Szeider: Preface. J. Discrete Algorithms 6(4): 539 (2008)
81EEHajo Broersma, Agostino Capponi, Daniël Paulusma: A New Algorithm for On-line Coloring Bipartite Graphs. SIAM J. Discrete Math. 22(1): 72-91 (2008)
80EEHajo Broersma, Matthew Johnson, Daniël Paulusma, Iain A. Stewart: The computational complexity of the parallel knock-out problem. Theor. Comput. Sci. 393(1-3): 182-195 (2008)
2007
79EEHajo Broersma, Matthew Johnson, Daniël Paulusma: Upper Bounds and Algorithms for Parallel Knock-Out Numbers. SIROCCO 2007: 328-340
78EEHajo Broersma, Bert Marchal, Daniël Paulusma, A. N. M. Salman: Improved Upper Bounds for lambda -Backbone Colorings Along Matchings and Stars. SOFSEM (1) 2007: 188-199
77EELigong Wang, Hajo Broersma, Cornelis Hoede, Xueliang Li, Georg Still: Integral trees of diameter 6. Discrete Applied Mathematics 155(10): 1254-1266 (2007)
76EEDouglas Bauer, Hajo Broersma, Nathan Kahl, Aurora Morgana, Edward F. Schmeichel, T. Surowiec: Tutte sets in graphs II: The complexity of finding maximum Tutte sets. Discrete Applied Mathematics 155(10): 1336-1343 (2007)
75EEA. N. M. Salman, H. J. Broersma: Path-kipas Ramsey numbers. Discrete Applied Mathematics 155(14): 1878-1884 (2007)
74EEHajo Broersma, Fedor V. Fomin, Rastislav Kralovic, Gerhard J. Woeginger: Eliminating graphs by means of parallel knock-out schemes. Discrete Applied Mathematics 155(2): 92-102 (2007)
73EEHajo Broersma, Liming Xiong, Kiyoshi Yoshimoto: Toughness and hamiltonicity in k-trees. Discrete Mathematics 307(7-8): 832-838 (2007)
72EEA. N. M. Salman, Hajo Broersma: On Ramsey numbers for paths versus wheels. Discrete Mathematics 307(7-8): 975-982 (2007)
71EEHajo Broersma, Gasper Fijavz, Tomás Kaiser, Roman Kuzel, Zdenek Ryjácek, Petr Vrána: Contractible Subgraphs, Thomassen's Conjecture and the Dominating Cycle Conjecture for Snarks. Electronic Notes in Discrete Mathematics 28: 55-59 (2007)
70EEHajo Broersma, Daniël Paulusma, Kiyoshi Yoshimoto: On components of 2-factors in claw-free graphs. Electronic Notes in Discrete Mathematics 29: 289-293 (2007)
69EEOleg V. Borodin, Hajo Broersma, Alexei N. Glebov, J. van den Heuvel: A new upper bound on the cyclic chromatic number. Journal of Graph Theory 54(1): 58-72 (2007)
68EEHajo Broersma, Fedor V. Fomin, Petr A. Golovach, Gerhard J. Woeginger: Backbone colorings for graphs: Tree and path backbones. Journal of Graph Theory 55(2): 137-152 (2007)
67EEDouglas Bauer, Hajo Broersma, Aurora Morgana, Edward F. Schmeichel: Tutte sets in graphs I: Maximal tutte sets and D-graphs. Journal of Graph Theory 55(4): 343-358 (2007)
66EEHajo Broersma, Xueliang Li: On the complexity of dominating set problems related to the minimum all-ones problem. Theor. Comput. Sci. 385(1-3): 60-70 (2007)
2006
65 Hajo Broersma, Stefan S. Dantchev, Matthew Johnson, Stefan Szeider: Algorithms and Complexity in Durham 2006 - Proceedings of the Second ACiD Workshop, 18-20 September 2006, Durham, UK King's College, London 2006
64EEHajo Broersma, Agostino Capponi, Daniël Paulusma: On-Line Coloring of H-Free Bipartite Graphs. CIAC 2006: 284-295
63EEHajo Broersma, Matthew Johnson, Daniël Paulusma, Iain A. Stewart: The Computational Complexity of the Parallel Knock-Out Problem. LATIN 2006: 250-261
62EEHajo Broersma, Fedor V. Fomin, Jan Kratochvíl, Gerhard J. Woeginger: Planar Graph Coloring Avoiding Monochromatic Subgraphs: Trees and Paths Make It Difficult. Algorithmica 44(4): 343-361 (2006)
61EEStephan Brandt, Hajo Broersma, Reinhard Diestel, Matthias Kriesell: Global Connectivity And Expansion: Long Cycles and Factors In f-Connected Graphs. Combinatorica 26(1): 17-36 (2006)
60EEA. N. M. Salman, Hajo Broersma: Path-fan Ramsey numbers. Discrete Applied Mathematics 154(9): 1429-1436 (2006)
59EELiming Xiong, Hajo Broersma: Subpancyclicity of line graphs and degree sums along paths. Discrete Applied Mathematics 154(9): 1453-1463 (2006)
58EEDouglas Bauer, Hajo Broersma, Edward F. Schmeichel: Toughness in Graphs - A Survey. Graphs and Combinatorics 22(1): 1-35 (2006)
2005
57 Hajo Broersma, Matthew Johnson, Stefan Szeider: Algorithms and Complexity in Durham 2005 - Proceedings of the First ACiD Workshop, 8-10 July 2005, Durham, UK King's College, London 2005
56EELiming Xiong, Zdenek Ryjácek, Hajo Broersma: On stability of the hamiltonian index under contractions and closures. Journal of Graph Theory 49(2): 104-115 (2005)
2004
55EEHajo Broersma, Fedor V. Fomin, Gerhard J. Woeginger: Parallel Knock-Out Schemes in Networks. MFCS 2004: 204-214
54EEHajo Broersma, Daniël Paulusma, Gerard J. M. Smit, Frank Vlaardingerbroek, Gerhard J. Woeginger: The Computational Complexity of the Minimum Weight Processor Assignment Problem. WG 2004: 189-200
53EEUlrich Faigle, Stefan Pickl, Hajo Broersma, Johann Hurink: Preface: The 1st Cologne-Twente Workshop on Graphs and Combinatorial Optimization. Discrete Applied Mathematics 136(2-3): 159-160 (2004)
52EELiming Xiong, Hajo Broersma, Xueliang Li, MingChu Li: The hamiltonian index of a graph and its branch-bonds. Discrete Mathematics 285(1-3): 279-288 (2004)
51EEA. N. M. Salman, H. J. Broersma: The Ramsey Numbers of Paths Versus Kipases. Electronic Notes in Discrete Mathematics 17: 251-255 (2004)
2003
50EEYuanqing Guo, Gerard J. M. Smit, Hajo Broersma, Michèl A. J. Rosien, Paul M. Heysters: Mapping Applications to a Coarse Grain Reconfigurable System. Asia-Pacific Computer Systems Architecture Conference 2003: 221-235
49EE Surahmat, Edy Tri Baskoro, Saladin Uttunggadewa, Hajo Broersma: An Upper Bound for the Ramsey Number of a Cycle of Length Four Versus Wheels. IJCCGGT 2003: 181-184
48EEHajo Broersma: A General Framework for Coloring Problems: Old Results, New Results, and Open Problems. IJCCGGT 2003: 65-79
47EEYuanqing Guo, Gerard J. M. Smit, Hajo Broersma, Paul M. Heysters: Template Generation and Selection Algorithms. IWSOC 2003: 2-6
46EEYuanqing Guo, Gerard J. M. Smit, Hajo Broersma, Paul M. Heysters: A graph covering algorithm for a coarse grain reconfigurable system. LCTES 2003: 199-208
45EEHajo Broersma, Fedor V. Fomin, Petr A. Golovach, Gerhard J. Woeginger: Backbone Colorings for Networks. WG 2003: 131-142
44EEA. N. M. Salman, H. J. Broersma: The Ramsey Numbers of Paths Versus Fans. Electronic Notes in Discrete Mathematics 13: 103-107 (2003)
43EEHajo Broersma, Ulrich Faigle, Johann Hurink, Stefan Pickl, Gerhard J. Woeginger: Preface: Volume 13. Electronic Notes in Discrete Mathematics 13: 128 (2003)
42 A. N. M. Salman, Hajo Broersma, Edy Tri Baskoro: Spanning 2-Connected Subgraphs in Alphabet Graphs, Special Classes of Grid Graphs. Journal of Automata, Languages and Combinatorics 8(4): 675-681 (2003)
2002
41EEHans L. Bodlaender, Hajo Broersma, Fedor V. Fomin, Artem V. Pyatkin, Gerhard J. Woeginger: Radio Labeling with Pre-assigned Frequencies. ESA 2002: 211-222
40EEHajo Broersma, Fedor V. Fomin, Jan Kratochvíl, Gerhard J. Woeginger: Planar Graph Coloring with Forbidden Subgraphs: Why Trees and Paths Are Dangerous. SWAT 2002: 160-169
39EEHajo Broersma, Fedor V. Fomin, Jaroslav Nesetril, Gerhard J. Woeginger: More about Subcolorings. WG 2002: 68-79
38EEHajo Broersma, Ton Kloks, Dieter Kratsch, Haiko Müller: A Generalization of AT-Free Graphs and a Generic Algorithm for Solving Triangulation Problems. Algorithmica 32(4): 594-610 (2002)
37EEHajo Broersma, Fedor V. Fomin, Jaroslav Nesetril, Gerhard J. Woeginger: More About Subcolorings. Computing 69(3): 187-203 (2002)
36 Douglas Bauer, Hajo Broersma, Aurora Morgana, Edward F. Schmeichel: Polynomial algorithms that prove an NP-Hard hypothesis implies an NP-hard conclusion. Discrete Applied Mathematics 120(1-3): 13-23 (2002)
35 Hajo Broersma, Liming Xiong: A note on minimum degree conditions for supereulerian graphs. Discrete Applied Mathematics 120(1-3): 35-43 (2002)
34 Hajo Broersma, Xueliang Li: Some approaches to a conjecture on short cycles in digraphs. Discrete Applied Mathematics 120(1-3): 45-53 (2002)
33EELiming Xiong, Hajo Broersma, Cornelis Hoede, Xueliang Li: Degree sums and subpancyclicity in line graphs. Discrete Mathematics 242(1-3): 255-267 (2002)
32EEHajo Broersma: On some intriguing problems in hamiltonian graph theory--a survey. Discrete Mathematics 251(1-3): 47-69 (2002)
31EEDouglas Bauer, Hajo Broersma, Edward F. Schmeichel: More Progress on Tough Graphs - The Y2K Report. Electronic Notes in Discrete Mathematics 11: 63-80 (2002)
30EEShenggui Zhang, Hajo Broersma, Xueliang Li, Ligong Wang: A Fan Type Condition For Heavy Cycles in Weighted Graphs. Graphs and Combinatorics 18(1): 193-200 (2002)
2001
29EEHajo Broersma, Zdenek Ryjácek: Strengthening the closure concept in claw-free graphs. Discrete Mathematics 233(1-3): 55-63 (2001)
28EEHajo Broersma, Ulrich Faigle, Johann Hurink, Stefan Pickl: Preface: Volume 8. Electronic Notes in Discrete Mathematics 8: 1 (2001)
27EEXueliang Li, Shenggui Zhang, Hajo Broersma: Paths and Cycles in Colored Graphs. Electronic Notes in Discrete Mathematics 8: 128-132 (2001)
2000
26EEDouglas Bauer, Hajo Broersma, Henk Jan Veldman: Not Every 2-tough Graph Is Hamiltonian. Discrete Applied Mathematics 99(1-3): 317-321 (2000)
25EEHajo Broersma, Elias Dahlhaus, Ton Kloks: A Linear Time Algorithm for Minimum Fill-in and Treewidth for Distance Hereditary Graphs. Discrete Applied Mathematics 99(1-3): 367-400 (2000)
24EEShenggui Zhang, Xueliang Li, Hajo Broersma: Heavy paths and cycles in weighted graphs. Discrete Mathematics 223(1-3): 327-336 (2000)
23EEHajo Broersma, Otto R. Koppius, Hilde Tuinstra, Andreas Huck, Ton Kloks, Dieter Kratsch, Haiko Müller: Degree-preserving trees. Networks 35(1): 26-39 (2000)
1999
22 Hajo Broersma, Cornelis Hoede: Another equivalent of the graceful tree conjecture. Ars Comb. 51: (1999)
21EEHajo Broersma, Erik Engbers, Huib Trommel: Various results on the toughness of graphs. Networks 33(3): 233-238 (1999)
20EEHajo Broersma, Ton Kloks, Dieter Kratsch, Haiko Müller: Independent Sets in Asteroidal Triple-Free Graphs. SIAM J. Discrete Math. 12(2): 276-287 (1999)
1998
19EEHajo Broersma, Andreas Huck, Ton Kloks, Otto R. Koppius, Dieter Kratsch, Haiko Müller, Hilde Tuinstra: Degree-Preserving Forests. MFCS 1998: 713-721
18 Hajo Broersma, Ton Kloks, Dieter Kratsch, Haiko Müller: A Generalization of AT-free Graphs and a Generic Algorithm for Solving Treewidth, Minimum Fill-In and Vertex Ranking. WG 1998: 88-99
17EEHajo Broersma, Huib Trommel: Closure concepts for claw-free graphs. Discrete Mathematics 185(1-3): 231-238 (1998)
1997
16 Hajo Broersma, Ton Kloks, Dieter Kratsch, Haiko Müller: Independent Sets in Asteroidal Triple-Free Graphs. ICALP 1997: 760-770
15 Hajo Broersma, Elias Dahlhaus, Ton Kloks: Algorithms for the Treewidth and Minimum Fill-in of HHD-Free Graphs. WG 1997: 109-117
14EEH. J. Broersma: A note on the minimum size of a vertex pancyclic graph. Discrete Mathematics 164(1-3): 29-32 (1997)
13EEH. J. Broersma, Zdenek Ryjácek, Ingo Schiermeyer: Dirac's minimum degree condition restricted to claws. Discrete Mathematics 167-168: 155-166 (1997)
12EEThomas Böhme, Hajo Broersma, F. Göbel, Alexandr V. Kostochka, Michael Stiebitz: Spanning trees with pairwise nonadjacent endvertices. Discrete Mathematics 170(1-3): 219-222 (1997)
11EEHajo Broersma, Hao Li, Jianping Li, Feng Tian, Henk Jan Veldman: Cycles through subsets with large degree sums. Discrete Mathematics 171(1-3): 43-54 (1997)
1996
10 Hajo Broersma, Xueliang Li: The connectivity of the leaf-exchange spanning tree graph of a graph. Ars Comb. 43: (1996)
1995
9EEDouglas Bauer, H. J. Broersma, J. van den Heuvel, Henk Jan Veldman: Long cycles in graphs with prescribed toughness and minimum degree. Discrete Mathematics 141(1-3): 1-10 (1995)
1994
8EEHajo Broersma, Ingo Schiermeyer: Subgraphs, Closures and Hamiltonicity. Discrete Applied Mathematics 51(1-2): 39-46 (1994)
7EEH. J. Broersma, Ingo Schiermeyer: A closure concept based on neighborhood unions of independent triples. Discrete Mathematics 124(1-3): 37-47 (1994)
1993
6EEHajo Broersma, Xueliang Li: On "The Matching Polynomial of a Polygraph". Discrete Applied Mathematics 46(1): 79-86 (1993)
5EEH. J. Broersma, F. Göbel: Coloring a graph optimally with two colors. Discrete Mathematics 118(1-3): 23-31 (1993)
4EEH. J. Broersma: A note on K4-closures in hamiltonian graph theory. Discrete Mathematics 121(1-3): 19-23 (1993)
3EEH. J. Broersma, J. van den Heuvel, Henk Jan Veldman: Long cycles, degree sums and neighborhood unions. Discrete Mathematics 121(1-3): 25-35 (1993)
2EEH. J. Broersma, J. van den Heuvel, Henk Jan Veldman: A generalization of Ore's Theorem involving neighborhood unions. Discrete Mathematics 122(1-3): 37-49 (1993)
1989
1EEDouglas Bauer, Hajo Broersma, Henk Jan Veldman, Li Rao: A generalization of a result of Häggkvist and Nicoghossian. J. Comb. Theory, Ser. B 47(2): 237-243 (1989)

Coauthor Index

1Edy Tri Baskoro [42] [49]
2Douglas Bauer [1] [9] [26] [31] [36] [58] [67] [76]
3Hans L. Bodlaender [41]
4Thomas Böhme [12]
5Oleg V. Borodin [69]
6Stephan Brandt [61]
7Agostino Capponi [64] [81]
8Elias Dahlhaus [15] [25]
9Stefan S. Dantchev [65] [82]
10Reinhard Diestel [61]
11Erik Engbers [21]
12Thomas Erlebach [87]
13Ulrich Faigle [28] [43] [53]
14Gasper Fijavz [71] [84]
15Fedor V. Fomin [37] [39] [40] [41] [45] [55] [62] [68] [74]
16Tom Friedetzky [87]
17Alexei N. Glebov [69]
18F. Göbel [5] [12]
19Petr A. Golovach [45] [68]
20Yuanqing Guo [46] [47] [50]
21J. van den Heuvel [2] [3] [9] [69]
22Paul M. Heysters [46] [47] [50]
23Cornelis Hoede [22] [33] [77] [83]
24Andreas Huck [19] [23]
25Johann Hurink [28] [43] [53]
26Matt Johnson (Matthew Johnson) [80] [82] [88]
27Matthew Johnson [57] [63] [65] [79]
28Nathan Kahl [76]
29Tomás Kaiser [71] [84]
30Ton Kloks (Antonius J. J. Kloks) [15] [16] [18] [19] [20] [23] [25] [38]
31Otto R. Koppius [19] [23]
32Alexandr V. Kostochka [12]
33Rastislav Kralovic [74]
34Jan Kratochvíl [40] [62]
35Dieter Kratsch [16] [18] [19] [20] [23] [38]
36Matthias Kriesell [61]
37Roman Kuzel [71] [84]
38Hao Li [11]
39Jianping Li [11]
40MingChu Li [52] [85]
41Xueliang Li [6] [10] [24] [27] [30] [33] [34] [52] [66] [77] [83] [89]
42Bert Marchal [78]
43Aurora Morgana [36] [67] [76]
44Haiko Müller [16] [18] [19] [20] [23] [38]
45Jaroslav Nesetril (Jarik Nesetril) [37] [39]
46Daniël Paulusma [54] [63] [64] [70] [78] [79] [80] [81] [86] [87] [88]
47Stefan Pickl (Stefan Wolfgang Pickl) [28] [43] [53]
48Artem V. Pyatkin [41]
49Li Rao [1]
50Michèl A. J. Rosien [50]
51Zdenek Ryjácek [13] [29] [56] [71] [84]
52A. N. M. Salman [42] [44] [51] [60] [72] [75] [78]
53Ingo Schiermeyer [7] [8] [13]
54Edward F. Schmeichel [31] [36] [58] [67] [76]
55Gerard J. M. Smit [46] [47] [50] [54]
56Iain A. Stewart [63] [80]
57Michael Stiebitz [12]
58Georg Still [77] [83]
59 Surahmat [49]
60T. Surowiec [76]
61Stefan Szeider [57] [65] [82]
62Feng Tian [11]
63Huib Trommel [17] [21]
64Hilde Tuinstra [19] [23]
65Saladin Uttunggadewa [49]
66Henk Jan Veldman [1] [2] [3] [9] [11] [26]
67Frank Vlaardingerbroek [54]
68Petr Vrána [71] [84]
69Ligong Wang [30] [77] [83]
70Gerhard J. Woeginger [37] [39] [40] [41] [43] [45] [54] [55] [62] [68] [74]
71Liming Xiong [33] [35] [52] [56] [59] [73] [85]
72Xiangmei Yao [89]
73Kiyoshi Yoshimoto (Kiyoshi Yoshiomoto) [70] [73]
74Shenggui Zhang [24] [27] [30]
75Wenli Zhou [89]

Copyright © Sun May 17 03:24:02 2009 by Michael Ley (ley@uni-trier.de)