A bipartite graph structure for Tamil

Remark: Tamil alphabets [which are Abugida or alphasyllabary in nature] can be written as a fully connected bipartite graph G(C+V,E). Both the basic 247 letters [known to have a ring representation] and sequences involving வட மொழி letters can be written in the sequence of two sets, V – vowels [உயிர்] and C – consonants [மெய்], and edges E: C -> V forming a map from each consonant to vowel (e.g.: க் + அ -> க ) are the உயிர்மெய் எழுத்துக்கள். This is a K_{\left[18 \times 12\right]} bipartite graph. Strictly speaking we can add அயுத எழுத்து ‘ஃ’ as a disconnected node and call it a K_{\left[ 18 \times 12\right]} + 1 forest graph. This may be simply extended to cover the வட மொழி எழுத்துக்கள் [Sanskrit letters optionally used in Tamil]. Full alphabet set is obtained by cumulative sum of edges and vertices.

Corollary: Most other alphasyllabary, Abugida languages have a similar bipartite graph representation.

Fig. 1: A fully connected Bipartite graph K(5,3). Credit: Wikipedia.

மறுமொழியொன்றை இடுங்கள்

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