PROFESSIONAL QUALIFICATION
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· B.Ed,1st class, from NetajiSubhas Open University in ODL mode
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PUBLICATIONS
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· Dr. Ashok Kr Das &Ritapa Chakraborty,Asteroidal Triple of Edges in Bichordal Graph: A complete list, Department of Pure Mathematics, University of Calcutta, 2013
· Dr. Ashok Kr Das &Ritapa Chakraborty,New Characterizations of proper interval bigraphs, AKCE International Journal of Graphs & Combinatorics, 2015
· Dr. Ashok Kr Das &Ritapa Chakraborty,New Characterizations of proper interval bigraphs and proper circular arc bigraphs, Springer, 2015
· Dr. Ashok Kr Das &Ritapa Chakraborty,Graphs and digraphs represented by intervals and circular arcs, Discrete Applied Mathematics, 2017
· Dr. Ashok Kr Das &Ritapa Chakraborty,Forbidden subgraphs of bigraphs of Ferrers Dimession 2, Springer International Publishing, 2017
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SCHOOL/CONFERENCE/ WORKSHOP PARTICIAPTED
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· Participated (December 2012) in the National Seminar -“Mathematics and Mathematical Sciences” organisedby Department of Applied & Pure Mathematics, University of Calcutta.
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