• "A better eigenvalue localization for stochastic matrices and bounds on normalized Laplacian eigenvalues" (Invited Talk), National Conference on Linear Algebra and its Applications, Jan. 9 - 10, 2017, Organized by Sikkim Manipal Institute of Technology, Majitar, India.


• "Structural similarity of metabolic networks by graph spectra" (Invited Talk), Conference on Nonlinear Systems & Dynamics, Dec. 16 - 18, 2016, Organized by National Organizing Committee of CNSD and IISER Kolkata, India.


• "Spectra analysis of general hypergraphs by tensors" (Invited Talk), International Workshop on Spectral Hypergraph Theory, May 26 - 29, 2016, Organized by Harbin Engineering University, Harbin, China.


• "Spectra of general hypergraphs" (Invited Talk), Network theory: Conceptual Advances and Practical Applications, April 26, 2016, Organized by IMSc, Chennai, India.


• "Analysis of human-brain memory functional networks" (Invited Talk), National Conference on Mathematical and Theoretical Biology, Nov. 19 - 20, 2015, Jointly Organized by Centre for Mathematical Biology and Ecology, Department of Mathematics, Jadavpur University, Kolkata and Biomathematical Society of India.


• "Phylogeny of Metabolic Networks" (Invited Talk), Seminar on Computational Core for Plant Metabolomics, April 21, 2015, Organized by School of Computational and Integrative Sciences, JNU, India.


• "Phylogenetic study of metabolic networks by graph spectra" (Invited Talk), International Conference on Mathematical and Computational Biology Feb 28 - Mar 3, 2015, Jointly Organized by Dept. of Mathematics and Statistics, IIT Kanpur and NNMCB, India


• "Graph spectra reveals the structure and evolution of biological networks" (Invited Talk), Two day workshop on: Recent Trends in Bioinformatics, May 17 - 18, 2014, Jointly Organized by Institute of Bioinformatics and Computational Biology (IBCB), India and Jawaharlal Nehru Technological University Kakinada, India.


• "Human Brain Memory Functional Networks", A short course on: Computational System Biology, March 31 - April 04, 2014, Jointly Organized by Dept. of Computer Science & Engineering and Dept. of Electronics & Electrical Communication Engineering, IIT Kharagpur, India.


• "Graph spectra, structural distance and evolution of biological networks", A short course on: Computational System Biology, March 31 - April 04, 2014, Jointly Organized by Dept. of Computer Science & Engineering and Dept. of Electronics & Electrical Communication Engineering, IIT Kharagpur, India.


• "Structure and evolutionary relationship of networks: A study by graph Laplacian spectra"(Invited Talk), National Conference on Mathematical and Theoretical Biology, February 21-22, 2014, Jointly Organized by Centre for Mathematical Biology and Ecology, Department of Mathematics, Jadavpur University, Kolkata and Biomathematical Society of India.


• "Normalized graph Laplacian spectra & network structure" March 14-15, 2013, 1st Department Day, Organized by Department of Mathematics & Sattistics, IISER Kolkata, India.


• "Normalized graph Laplacian spectra, structure and evolutionary relationship of networks" (Invited Talk), Seminar on Mathematics and Mathematical Sciences, December 27-28, 2012, Jointly Organized by Department of Applied Mathematics & Department of Pure Mathematics, University of Calcutta, Kolkata, India.


• "Normalized Laplacian spectrum, structure and evolution of graphs" (Invited Talk), Conference on Applications of Graph Spectra in Computer Science, July 16-20, 2012, Organized by CRM (Centre de Recerca Matemàtica), Bellaterra (Barcelona), Spain.


• "Normalized graph Laplacian spectra and evolutionary relationship of networks" (Invited Talk), Workshop On System Science: Complex Networks & Applications, May 07-09, 2012, Organized by IITJ and DAE, Jodhpur, India (7th May, 2012).


• "Structural distance and evolutionary relationship of networks: A study by graph Laplacian", System Biology Group, Bose Institute, Kolkata, India (11th April, 2012).


• "Age-related changes in the memory functional networks", International Conference on Mathematical and Theoretical Biology - 2012, Pune, India (27th January, 2012).


• "Frontiers in Neural Networking", in 'Summer Training in Physics and Chemistry (STIPAC)-2011' program at IGCAR, Kalpakkam, India (1st June, 2011).


• "Graph spectra to reveal the structure and evolutionary relationship of networks AND Structural change of human-brain memory functional networks in aging", Comp. Sc. Dept., IIT-Kharagpur, Kharagpur, India, (3rd December, 2010); IISER-Kolkata, India (26th November, 2010).


• On: Structural analysis of network with graph spectra and the change of memory functional networks in aging, Dept. of Neurobiology, Yale University, USA (12th October, 2010).


• Talks on "Evolutionary relationship of the networks retraced by the structural distance computed from the graph Laplacian spoectrum", CMERI-Durgapur, India (8th March, 2010); on "Laplacian spectrum of graphs, structural distance, and evolutionary relationship of networks", School of Technology and Computer Science, TIFR-Mumbai, India (26th February, 2010).


• "Structural distance of networks retraces the evolutionary relationship", ECCS 2008, Jerusalem, (18th September, 2008).


• Several talks on "Laplacian spectra, graph structure and evolution" in India at: Maths. Dept., IIT- Kharagpur, Kharagpur, India, (13th February, 2008); Comp. Sc. Dept., IIT-Kharagpur, Kharagpur, India, (12th February, 2008); Dept. of Phys. and Astro-Phys., Univ. of Delhi, Delhi, India, (4th February, 2008); JNU, Delhi, India, (3rd February, 2008); IMSc, Chennai, India, (22nd January, 2008); Microsoft Research, India, (18th January, 2008); Maths. Dept., IISC, Bangalore, India, (17th January, 2008).


• "Spectral Plot Properties: Towards a qualitative classification of networks", ECCS 2007, Dresden, Germany (2nd October, 2007).


• "Graph Spectra: A tool for analyzing networks", Statphys 23, Pula (Cagliari) Italy (2nd July, 2007).


• "Graph Spectra: A tool for analyzing biological networks", MPI for Molecular Genetics, Berlin, Germany (20th February 2007).


• "The evolution and dynamics of reaction networks", ICB, Shanghai, China (10th August 2006).

Last modified: April 06, 2017