Read More
Date: 24-3-2022
1385
Date: 17-5-2022
1079
Date: 13-3-2022
1384
|
An -firecracker is a graph obtained by the concatenation of -stars by linking one leaf from each (Chen et al. 1997, Gallian 2007).
Firecracker graphs are graceful (Chen et al. 1997, Gallian 2018).
Precomputed properties of firecrackers are implemented in the Wolfram Language as GraphData["Firecracker", n, k].
Chen, W.-C.; Lu, H.-I; and Yeh, Y.-N. "Operations of Interlaced Trees and Graceful Trees." Southeast Asian Bull. Math. 21, 337-348, 1997.
Gallian, J. "Dynamic Survey of Graph Labeling." Elec. J. Combin. DS6. Dec. 21, 2018. https://www.combinatorics.org/ojs/index.php/eljc/article/view/DS6.
|
|
تفوقت في الاختبار على الجميع.. فاكهة "خارقة" في عالم التغذية
|
|
|
|
|
أمين عام أوبك: النفط الخام والغاز الطبيعي "هبة من الله"
|
|
|
|
|
خدمات متعددة يقدمها قسم الشؤون الخدمية للزائرين
|
|
|