Dec 2023:  Plenary talk in the ninth international conference “Quasilinear Equations, Inverse Problems and their Applications” (QIPA2023) taking place in the Moscow Institute of Physics and Technology from December 4 to December 6, 2023

Apr 2023: Invited seminar ‘On scalar waves in lattices with defects and interfaces on surfaces’ on 11 April 2023 at the Applied Mathematics seminar during visit to the Department of Mathematical Sciences, Univeristy of Liverpool, Liverpool, L69 7ZL, England, UK on 10-12 April 2023.

Feb 2023: Invited seminar ‘Some illustrative problems in the discrete scattering theory’ on 20 February 2023 at the Asymptotics, Operators, and Functionals (AOF) Seminar during visit to the Department of Mathematical Sciences of the University of Bath, Bath, Bath, BA2 7AY, UK, on 20-21 February 2023.

Feb 2023: Invited seminar in workshop on Canonical Scattering Problems (https://www.newton.ac.uk/ event/mwsw01/) from the 6th to the 10th of February 2023 as a subset of “Mathematical theory and applications of multiple wave scattering", taking place from January to June 2023, in Isaac Newton Institute for Mathematical Sciences, Cambridge University, Cambridge, UK

Jan 2023: Invited seminar ‘Some illustrative problems in discrete scattering theory: lessons from classical problems for novel lattice materials’ on 20 January 2023 (online) in the Discipline of Mechanical Engineering at IIT Gandhi Nagar, India.

Jan 2023: Invited seminar `Surface waves in lattice models’ in the School of Computer Science and Mathematics at Keele University during the period 16th-20th January 2023, Keele, Staffordshire, UK, ST5 5NH.

Jan-June 2023: Invited to undertake research relevant to the programme on Mathematical theory and applications of multiple wave scattering in the  Isaac Newton Institute for Mathematical Sciences at Cambridge University, UK.

Jul 2022: (delivered by S. Dharmavaram): ``Multiscale Modeling of Membranes with Embedded Thin Filaments'', CP17 Multiphysical and Multiscale Models, Hybrid: 2022 SIAM Annual Meeting (AN22), David L. Lawrence Convention Center Pittsburgh, Pennsylvania, U.S, July 11--15, 2022.

Jun 2022: (by S. Dharmavaram): “Modeling coupled interaction of lipid Membranes with embedded filaments”, the ECCOMAS Congress 2022 held in Oslo, Norway, on 5th-9th of June, 2022.

Jan 2022: “Some problems in discrete scattering and lattice mechanics” — Invited “guest lecture” in the Workshop on Functional Analysis and its Applications (January 14–16, 2022), Department of Applied Sciences, IIIT Allahabad, U. P., India

Jan 2020: "An example from discrete scattering theory" Invited talk in Analysis Seminar of Department of Mathematics, Indian Institute of Technology Kanpur, Kanpur, U. P., India

Oct 2019 (by V. Eremeyev): ``Anti-plane surface waves in media with surface structures and surface interfaces: Discrete vs. continuum model”, in Kick-off meeting of the IRP Coss & Vita joint with Workshop on elastodynamics of microstructured media October, 17–19, 2019 École des Ponts ParisTech, Champs sur Marne, Amphithéâtre Navier

Sep 2019 (by V. Eremeyev): ``Anti-Plane Surface Waves: Discrete vs. continuum model”, in Conference “Dynamics of Technical Systems”, 11–13.09.2019, Rostov on Don, Russia

Aug 2019: ``Wiener-Hopf factorisation on the unit circle: some examples of discrete scattering problems”, Invited talk in "Factorisation of matrix functions: New techniques and applications [WHTW01]", Isaac Newton Institute for Mathematical Sciences, Cambridge University, UK

May 2019: "On the discrete scattering effects due to edges in certain simple structures" Invited talk at the institute of Applied and Computational Mathematics in the Foundation of Research and Technology, Crete, Greece
May 2019: "Discrete Sommerfeld problems and nanoscale transport: some lessons from elementary mathematical techniques " Invited three day series of lectures on theoretical results involving lattices at the Faculty of engineering, Politecnico di Bari, Polignano a Mare - Bari, Italy
May 2019: " Steady state kinetics of lattice defects: prototype models and energy balance " Invited three day series of lectures on theoretical results involving lattices at the Faculty of engineering, Politecnico di Bari, Polignano a Mare - Bari, Italy
May 2019: " Discrete scattering by a crack" Invited three day series of lectures on theoretical results involving lattices at the Faculty of engineering, Politecnico di Bari, Polignano a Mare - Bari, Italy
May 2019: "Waves on lattices: case of scattering due to crack on square lattice" Invited series of lectures at the Faculty of Civil and Environmental Engineering, Gdansk University of Technology, Gdansk, Poland
May 2019: "On analysis and applications of discrete scattering theory involving edges" Invited talk at the Glasgow Computational Engineering Center, University of Glasgow, Glasgow, UK
Apr 2019: "On the discrete scattering effects due to edges in certain simple structures" Invited talk (ACM Research Seminar) at the School of Engineering, Cardiff University, Cardiff, Wales, CF10 3AT, UK
Apr 2019: "On the discrete scattering effects due to edges in certain simple structures" Invited talk at the Department of Mathematics, Keele University, Keele, Staffordshire, UK, ST5 5NH
Apr 2019: "Wave propagation in lattices and structured media" Invited talk at the Center for Mechanics of Solids, Structures and Materials (CMSSM), The University of Texas at Austin, Austin, Texas, USA
Apr 2019: Visiting Department of Mathematics, University of Aberystwyth 3 Apr-10 Apr 2019, UK
Apr 2019: "On the analysis and applications of discrete scattering theory in bifurcated lattice waveguides" Invited talk at the Center for Materials, Paris Mines Tech, Evry, Paris, France
Mar 2019: "On the analysis and applications of discrete scattering theory in bifurcated lattice waveguides" Invited talk at the Center for Morphology of Materials, Paris Mines Tech, Fontainbleau, France
Mar 2019: "On an elementary analysis and some applications of scattering theory involving edges in a discrete framework" Invited talk at the Dipartimento di Ingegneria Meccanica, Chimica e dei Materiali, Universita ́ di Cagliari, Italy

Dec 2018-Jan 2019: Visiting TIFR Centre for Applicable Mathematics Sharadanagara, Chikkabommasandra, Bangalore, India,
Dec 2018: "On an elementary analysis and some applications of scattering theory involving edges in a discrete framework" Invited talk at the TIFR Centre for Applicable Mathematics Sharadanagara, Chikkabommasandra, Bangalore, India,
Oct 2018: "On some examples of discrete scattering in simple structures and their applications in mechanics and physics" Invited talk at the workshop Dynamic phenomena in media with microstructure (supported by Israel Science Foundation), 07-12 of October 2018, Faculty of Engineering, Tel Aviv University, Israel

Jun 2017: "Some reflections on the discrete aspects of solid mechanics" Invited talk at IITH Solid Mechanics Symposium, June 19-20, 2017, Indian Institute of Technology Hyderabad, Hyderabad, Telangana, India

Apr 2015: "Dislocation kinetics in lattice models" Invited talk in Pravartana’15, April 25-27, 2015, Indian Institute of Technology Kanpur, Kanpur, U. P., India,
Apr 2015: "Scattering of waves by line defects on two dimensional lattices" Invited talk in Department of Mechanical Engineering, Indian Institute of Technology Kanpur, Kanpur, U. P., India,
Feb 2015: "Fourier Series" Invited talk in "Mechanics School @ IITK" under the TEQIP program of the Technology Knowledge Incubation Cell, 20-24 February, 2015, Indian Institute of Technology Kanpur, Kanpur, U. P., India

Oct 2014: "Discrete Sommerfeld Problems" Invited talk in Mathematics Colloquium, Department of Mathematics, Indian Institute of Technology Kanpur, Kanpur, U. P., India

Mar 2011: "Liouville-Arnold Theorem" Invited talk in Analysis Seminar of Department of Mathematics, Indian Institute of Technology Kanpur, Kanpur, U. P., India

Oct 2009: "On Nonlinear Elastostatics" Invited talk in Analysis Seminar of Department of Mathematics, Indian Institute of Technology Kanpur, Kanpur, U. P., India

Oct 2007: "On a hypothesis concerning slowly moving steps along a phase boundary" Invited talk in Indian Institute of Technology Delhi, New Delhi, Delhi, India,
Mar 2007: "On Fracture in a Bar" In workshop on Mechanics of Interaction, Impacts and Separation of Solids, 2nd-4th March 2007, Indian Institute of Technology Kanpur, Kanpur, U. P., India

Nov 2006: "Fast Motion of Dislocation in a Lattice Model" Invited talk in Indian Institute of Technology Kanpur, Kanpur, U. P., India,
Mar 2006: "Kinetics of a Dislocation: Discrete Models" Invited talk in Laboratoire de Mechanique des Solides, Ecole Polytechnique, Palaiseau, France

Nov 2005: "Kinetics of a Dislocation: Continuum Models" Invited talk in Laboratoire de Mechanique des Solides, Ecole Polytechnique, Palaiseau, France,
Nov 2005: "On the motion of a Peierls' Dislocation" Invited talk in Department of Mathematical Sciences, University of Liverpool, Liverpool, L69 7ZL, England, UK,
Oct 2005: "Kinetics of a Dislocation in Peierls-Nabarro and Frenkel-Kontorowa Models" In Theories of Microstructures and Defects, 8-10 October 2005, Society for Natural Philosophy Meeting, Politecnico di Bari, Polignano a Mare - Bari, Italy,
Sep 2005: "Energy Landscape for Phase Boundaries and Step formation" In Multi-scale problems: modelling, analysis and applications, 12th-14th September 2005, University of Bath, Bath, BA2 7AY, UK,
Sep 2005: "Dispersive Continuum and Peierls Dislocation" In Successes and Failures of Continuous Models for Discrete Systems, 5-8 September 2005 at the University of Bristol, Bristol BS8 1TR, UK,
Aug 2005: "On the motion of a Peierls' Dislocation" Invited talk in Institute of Mathematical Sciences, University of Bath, Bath, BA2 7AY, UK,

July 2005: "Dislocations and Plasticity" Invited talk in Dynamical Problems in Mathematical Materials Science, July 17-23, 2005 at the International Centre for Mathematical Sciences, Edinburgh, UK,
July-August 05: Visiting Institute of Mathematical Sciences, University of Bath, Bath, BA2 7AY, UK ,
May-June 05: Visiting Department of Mathematics, University of Pittsburgh, Pittsburgh, PA, USA ,
March 05: Visiting Division of Applied Mathematics for a week, Brown University, Providence, RI, USA ,
March 05: "Synchronization of Globally Coupled Oscillators without Symmetry in the Distribution of Natural Frequencies”, Theoretical and Applied Mechanics, Cornell University, USA

October 2004: "Unstable Solitary Waves in One Dimensional Lattice'' in the session on ``Waves in Lattices and Arrays''; First SIAM Nonlinear Waves and Coherent Structures, October 2-4, 2004 at the University of Central Florida in Orlando,

June 2004: Discussions on "Phonon Emission, Dispersive Continuum models and the Kinetic Relation for a Dislocation”, Visiting the Department of Applied Mathematics, University of Crete, Greece

May 2004: "Dispersion, Dissipation and the Kinetic Rexlation for a Dislocation" in the mini-Symposium on Dynamics of Microstructure and Defects in Solids: Discrete and Continuum Models'', SIAM Conference on Mathematical Aspects of Material Science, May 23-26 2004, LA

December 2003: "Unstable Solitary Waves in One-Dimensional Lattice: Discrete Model" in Theoretical and Applied Mechanics, Cornell University.
August 2003: "Solitary Waves in One-Dimensional Lattice: Continuum Models" in Theoretical and Applied Mechanics, Cornell University.