The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Oriented coloring is a coloring of the vertices of an oriented graph such that: (1) no two neighbors have the same color, (2) if there is an arc leading from the color β1 to β2, then no arc leads from β2 to β1. In this paper we discuss oriented chromatic number of 2-dimensional grids G(m,n). In [Inform. Process. Lett. 85 (2003) 261–266] Fertin et al. gave some results for small n and stated a conjecture...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.