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7th Workshop on Graph ColoringsKežmarok, June 23-27, 2025 |
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The workshop will be focused on various types of graph colorings with distance, neighborhood or face constraints, such as packing coloring, strong and semi-strong edge coloring, dynamic edge coloring, face colorings, vertex distinguishing coloring, conflict-free coloring, unique-maximum coloring etc. The aim of the workshop is to discuss some open problems on various types of colorings as well as approaches, methods and techniques. The program consists of lectures followed by discussions, research in small groups and individual work. The attendance on this workshop is by invitation only. LocationWorkshop will take place in hotel Hviezdoslav in Kežmarok, a historic town located on the eastern side of the High Tatras (Slovakia). Program Outline
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| Mon, June 23 | (16:00) | arrival, opening |
| Tue, June 24 |
09:30 - 12:00 | talks |
| 14:00 - 18:00 | talks and discussions | |
| Wed, June 25 |
09:30 - 12:00 | discussions |
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13:30 - 17:30 | excursion |
| Thu, June 26 |
09:30 - 12:00 | discussions |
| 14:00 - 18:00 | discussions | |
| Fri, June 27 |
09:30 - 11:30 | discussions, departure |
| 09:30 - 10:40 |
Borut Lužar | A collage of open problems (20 min) |
| Přemek Holub | Recent results on S-packing colourings of distance graphs (20 min) | |
| Daša Mesarič Štesl |
Distance dominator packing colorings (20 min) | |
| 10:40 - 11:00 |
Coffee break |
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| 11:00 - 12:25 |
Ingo Schiermeyer | 3-colourability, claws, and butterflies (30 min) |
| Nadzieja Hodur | The k-colorability problem in the
class of (bull, chair)-free graphs (20 min) |
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| Christoph Brause | On the distinguishing chromatic number in hereditary graph classes (25 min) |
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| Kenny Bešter Štorgel |
Novo mesto, SLO |
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| Christoph Brause |
Freiberg, GER |
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| Igor Fabrici | Košice, SVK | |
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| Jaka Hedžet |
Ljubljana, SLO | |||
| Nadzieja Hodur |
Cracow, POL | |||
| Přemek Holub | Pilsen, CZE | |
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| Karolína Hylasová |
Pilsen, CZE | |||
| František Kardoš | Bratislava, SVK | |||
| Sandi Klavžar | Ljubljana, SLO | |||
| Martin Kopřiva | Pilsen, CZE | |||
| Petr Kovář |
Ostrava, CZE |
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| Borut Lužar | Novo mesto, SLO |
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| Petra Melicharová | Pilsen, CZE | |||
| Daša Mesarič Štesl |
Ljubljana, SLO | |||
| Alfréd Onderko |
Košice, SVK |
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| Ingo Schiermeyer |
Cracow, POL |
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| Roman Soták |
Košice, SVK |
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| Diana Švecová |
Košice, SVK |
The workshop is co-organized by Institute of Mathematics, Faculty of Science, Pavol Jozef Šafárik University in Košice and Department of Mathematics, Faculty of Applied Sciences, University of West Bohemia in Pilsen, with the support of org.com (civil organization).
For additional information, please contact
the organizers:
Igor Fabrici and Přemek Holub (Pilsen).

