2005 |
24 | EE | Jens-P. Bode,
Hans-Dietrich O. F. Gronau,
Heiko Harborth:
Some Ramsey Schur Numbers.
Combinatorics, Probability & Computing 14(1-2): 25-30 (2005) |
23 | EE | Jens-P. Bode,
Heiko Harborth:
Directed paths of diagonals within polygons.
Discrete Mathematics 299(1-3): 3-10 (2005) |
2003 |
22 | EE | Jens-P. Bode,
Heiko Harborth,
Martin Harborth:
King independence on triangle boards.
Discrete Mathematics 266(1-3): 101-107 (2003) |
21 | EE | Jens-P. Bode,
Heiko Harborth:
Independence for knights on hexagon and triangle boards.
Discrete Mathematics 272(1): 27-35 (2003) |
2002 |
20 | EE | Heiko Harborth:
Special numbers of crossings for complete graphs.
Discrete Mathematics 244(1-3): 95-102 (2002) |
2001 |
19 | EE | Heiko Harborth:
Eulerian straight ahead cycles in drawings of complete bipartite graphs.
Discrete Mathematics 230(1-3): 45-48 (2001) |
18 | EE | Heiko Harborth,
Ingrid Mengersen:
Ramsey numbers in octahedron graphs.
Discrete Mathematics 231(1-3): 241-246 (2001) |
17 | EE | Heiko Harborth,
Christian Thürmann:
Smallest limited snakes in d-grids.
Discrete Mathematics 236(1-3): 145-149 (2001) |
16 | EE | Arnfried Kemnitz,
Heiko Harborth:
Plane integral drawings of planar graphs.
Discrete Mathematics 236(1-3): 191-195 (2001) |
2000 |
15 | EE | Jens-P. Bode,
Heiko Harborth:
Hexagonal polyomino achievement.
Discrete Mathematics 212(1-2): 5-18 (2000) |
14 | EE | Heiko Harborth,
Hanno Lefmann:
Coloring arcs of convex sets.
Discrete Mathematics 220(1-3): 107-117 (2000) |
1999 |
13 | EE | Heiko Harborth,
Meinhard Möller:
Weakened Ramsey Numbers.
Discrete Applied Mathematics 95(1-3): 279-284 (1999) |
12 | EE | Heiko Harborth,
Silke Maasberg:
All two-color Rado numbers for a(x + y) = bz.
Discrete Mathematics 197-198: 397-407 (1999) |
1998 |
11 | EE | Heiko Harborth:
Empty triangles in drawings of the complete graph.
Discrete Mathematics 191(1-3): 109-111 (1998) |
1997 |
10 | EE | Heiko Harborth,
Silke Maasberg:
Rado Numbers fora(x+y)=bz.
J. Comb. Theory, Ser. A 80(2): 356-363 (1997) |
1996 |
9 | EE | Heiko Harborth,
Lothar Piepmeyer:
Zero-Sum Ramsey Numbers modulo 3.
J. Comb. Theory, Ser. A 75(1): 145-147 (1996) |
1994 |
8 | EE | Holger Brandes,
Heiko Harborth,
Hans-Dietrich O. F. Gronau,
Christian Schwahn:
Ramsey numbers for sets of small graphs.
Discrete Mathematics 125(1-3): 73-86 (1994) |
1993 |
7 | | Heiko Harborth,
Arnfried Kemnitz,
Meinhard Möller:
An Upper Bound for the Minimum Diameter of Integral Point Sets.
Discrete & Computational Geometry 9: 427-432 (1993) |
1991 |
6 | EE | Heiko Harborth:
Plane four-regular graphs with vertex-to-vertex unit triangles.
Discrete Mathematics 97(1-3): 219-222 (1991) |
1989 |
5 | EE | Knut Dehnhardt,
Heiko Harborth:
Universal tilings of the plane by 0-1-matrices.
Discrete Mathematics 73(1-2): 65-70 (1989) |
4 | EE | Heiko Harborth,
Philipp Oertel,
Thomas Prellberg:
No-three-in-line for seventeen and nineteen.
Discrete Mathematics 73(1-2): 89-90 (1989) |
3 | EE | Heiko Harborth,
Ingrid Mengersen:
All Ramsey numbers for five vertices and seven or eight edges.
Discrete Mathematics 73(1-2): 91-98 (1989) |
1986 |
2 | EE | Heiko Harborth,
Ingrid Mengersen:
Point sets with many unit circles.
Discrete Mathematics 60: 193-197 (1986) |
1972 |
1 | | Heiko Harborth:
Solution of Steinhaus's Problem with Plus and Minus Signs.
J. Comb. Theory, Ser. A 12(2): 253-259 (1972) |