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 incidence_matrix [2014/02/08 02:03]nikolaj incidence_matrix [2014/03/21 11:11] (current) Both sides previous revision Previous revision 2014/02/10 11:58 nikolaj 2014/02/08 02:03 nikolaj 2014/02/08 02:02 nikolaj 2014/02/08 02:02 nikolaj old revision restored (2013/12/21 19:57) Next revision Previous revision 2014/02/10 11:58 nikolaj 2014/02/08 02:03 nikolaj 2014/02/08 02:02 nikolaj 2014/02/08 02:02 nikolaj old revision restored (2013/12/21 19:57) Line 1: Line 1: ===== Incidence matrix ===== ===== Incidence matrix ===== ==== Set ==== ==== Set ==== - | @#88DDEE: $n_v,m_e\in \mathbb N$ | + | @#55CCEE: context ​    | @#55CCEE: $n_v,m_e\in \mathbb N$ | - | @#FFBB00: $M\in \mathrm{it}(n_v,​m_e)$ | + | @#FFBB00: definiendum ​| @#FFBB00: $M\in \mathrm{it}(n_v,​m_e)$ | - | @#55EE55: $\mathrm{Matrix}(n_v,​m_e,​\{0,​1,​2\})$ | + | @#55EE55: postulate ​  | @#55EE55: $\mathrm{Matrix}(n_v,​m_e,​\{0,​1,​2\})$ | - | @#FFFDDD: $i\in\mathrm{range}(n_v)$ | + | @#FFFDDD: for all     | @#FFFDDD: $i\in\mathrm{range}(n_v)$ | - | @#55EE55: $\sum_{j=1}^{m_e} M_{ij}=2$ | + | @#55EE55: postulate ​  | @#55EE55: $\sum_{j=1}^{m_e} M_{ij}=2$ | ==== Discussion ==== ==== Discussion ==== Line 18: Line 18: === Subset of === === Subset of === [[Matrix]] [[Matrix]] + === Related === + [[Finite undirected graph]]