Eckhard Steffen
Eckhard Steffen
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Classifications and characterizations of snarks
E Steffen
Discrete Mathematics 188 (1-3), 183-203, 1998
831998
Star chromatic numbers of graphs
E Steffen, X Zhu
Combinatorica 16 (3), 439-448, 1996
671996
Measurements of edge-uncolorability
E Steffen
Discrete Mathematics 280 (1-3), 191-214, 2004
442004
Snarks and reducibility
G Brinkmann, E Steffen
Ars Combinatoria 50 (292-296), 198, 1998
371998
Circular flow numbers of regular multigraphs
E Steffen
Journal of Graph Theory 36 (1), 24-34, 2001
322001
Chromatic-index-critical graphs of orders 11 and 12
G Brinkmann, E Steffen
European Journal of Combinatorics 19 (8), 889-900, 1998
251998
1‐factor and cycle covers of cubic graphs
E Steffen
Journal of Graph Theory 78 (3), 195-206, 2015
242015
Independent sets and 2‐factors in edge‐chromatic‐critical graphs
S Grünewald, E Steffen
Journal of Graph Theory 45 (2), 113-118, 2004
242004
Choosability in signed planar graphs
L Jin, Y Kang, E Steffen
European Journal of Combinatorics 52, 234-243, 2016
182016
Nowhere-zero flows on signed regular graphs
M Schubert, E Steffen
European Journal of Combinatorics 48, 34-47, 2015
172015
Bounds for the independence number of critical graphs
G Brinkmann, SA Choudum, S Grünewald, E Steffen
Bulletin of the London Mathematical Society 32 (2), 137-140, 2000
162000
Tutte’s 5-flow conjecture for highly cyclically connected cubic graphs
E Steffen
Discrete mathematics 310 (3), 385-389, 2010
152010
Measures of edge-uncolorability of cubic graphs
MA Fiol, G Mazzuoccolo, E Steffen
the electronic journal of combinatorics, P4. 54-P4. 54, 2018
14*2018
Circular coloring of signed graphs
Y Kang, E Steffen
Journal of Graph Theory 87 (2), 135-148, 2018
142018
Chromatic‐index‐critical graphs of even order
S Grünewald, E Steffen
Journal of Graph Theory 30 (1), 27-36, 1999
141999
On bicritical snarks
E Steffen
Mathematica Slovaca 51 (2), 141-150, 2001
132001
Petersen-colorings and some families of snarks
J Hägglund, E Steffen
Ars Mathematica Contemporanea 7 (1), 161-173, 2013
122013
Reduction of symmetric configurations n3
HG Carstens, T Dinski, E Steffen
Discrete applied mathematics 99 (1-3), 401-411, 2000
122000
3-and 4-critical graphs of small even order
G Brinkmann, E Steffen
Discrete Mathematics 169 (1-3), 193-197, 1997
121997
The chromatic spectrum of signed graphs
Y Kang, E Steffen
Discrete Mathematics 339 (11), 2660-2663, 2016
112016
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Artigos 1–20