Rafał Witkowski

english version wersja polska

Faculty

Adam Mickiewicz University
Faculty of Mathematics and Computer Science
Poznań, Poland

Contact:

rmiw[at]amu.edu.pl

Recent Papers:

Graph Multicoloring, IX Międzynarodowe Warsztaty dla Młodych Matematyków - Kombinatoryka, Kraków, 2008, 251 -- 260, pdf (polish).
1-local 17/12-competitive Algorithm for Multicoloring Hexagonal Graphs, Lecture Notes of Computer Science, vol. 5699/2009, pp 346-356 (2009) pdf.
Sketch of 1-local 7/5-competitive Algorithm for Multicoloring Hexagonal Graphs (join with Janez Zerovnik), Electronic Notes in Discrete Mathematics, vol 36, pp 375–382 (2010) pdf.
1-local 7/5-competitive Algorithm for Multicoloring Hexagonal Graphs (join with Petra Sparl and Janez Zerovnik), Algorithmica, accepted, pdf.
1-local 4/3-competitive Algorithm for Multicoloring a Subclass of Hexagonal Graphs, Discrete Apllied Mathematics, accepted pdf.
2-local 4/3-competitive Algorithm for Multicoloring Hexagonal Graphs, ICCCI 2009 pdf.
A Linear Time Algorithm for 7-[3]-coloring Triangle-free Hexagonal Graphs, (join with Janez Zerovnik) pdf.
Partial solving McDiarmid-Reed conjecture about 9/8-approximate multicoloring of traingle-free hexagonal graph, (join with Ignasi Sau, Petra Sparl and Janez Zerovnik) pdf.

Grants:

Grant dydaktyczny acm.edu.pl

Others:

Mistrzostwa Wielkopolski w Programowaniu Zespołowym - polish biggest team programming contest
Mistrzostwa Polski w Programowaniu Zespołowym - Polish Championship in team programming