4   Artículos

 
en línea
Frank Gurski, Dominique Komander and Carolin Rehs    
Coloring is one of the most famous problems in graph theory. The coloring problem on undirected graphs has been well studied, whereas there are very few results for coloring problems on directed graphs. An oriented k-coloring of an oriented graph ??=(??,... ver más
Revista: Algorithms    Formato: Electrónico

 
en línea
Natalia Omelchenko,Viktoriia Dmytrenko,Natalia Lysenko,Anna Brailko,Maryna Martosenko     Pág. 31 - 41
We have studied the chemical composition of natural bischofite extracted from well No. 1 at Zaturin deposit and revealed that the sufficient saturation of ?g?l2 allows its use as an environmentally-oriented base for composition formulations in order... ver más
Revista: Eastern-European Journal of Enterprise Technologies    Formato: Electrónico

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