Summary

Education
1. 1984-1991: North Caucasian Mining and Metallurgical Institute, Faculty of Electronic Engineering
2. 1992-1996: Zugdidi Independent University, Physical-Mathematical Faculty, Mathematician, № 001266

Academic degree
Candidate of Sciences in Physical and Mathematical Sciences (PhD), 2004, № 004407

Work experience

1. 1996-2006: Ilia Vekua Institute of Applied Mathematics, Senior Assistant
2. 2006-2008: Zugdidi branch of Iv. Javakhishvili Tbilisi State University, Associated Professor
3. 2009-2011: Teaching University Geomedi, Associated Professor
4. 2011-2013: The University of Georgia, Invited Specialist, Associated Professor
5. 2014-2023: Georgian National University SEU, Associated Professor
6. 2020-up to now: Ilia Vekua Institute of Applied Mathematics, Head of the Laboratory of Mathematical Problems of Continuum Mechanics and Related Problems of the Analysis, Senior Researcher

Projects

• Some problem s of linear and nonlinear theory of shallow and nonshallow shells (FR /358/5-109/14), 2015-2018.
• APPLICATIONAL NONCLASSICAL ELASTICITY PROBLEMS FOR VARIOUS MULTILAYER BODIES AND DEVELOPMENT OF A TECHNICAL AND THEORETICAL AID WITH A PROGRAMME FOR THEIR STRENGTH CALCULATION (AR/91/5-109/11), 2012-2014.
• Calculation of linear and nonlinear shells by Vekua’s method and effective solution of three-dimensional thermoelectricity localization-delocalization problems (1.01.83), 2005-2005.

Talks

• Approximate solution of some boundary value problems of stress concentration for perforated plates with voids, by Roman Janjgava (Speaker) at XXXVII International Enlarged Sessions of the Seminar of Ilia Vekua Institute of Applied Mathematics, 2023, Tbilisi, Georgia.
• On construction of general solutions of equations of the plane theory of elasticity in the coupled theory of double-porosity materials, by Bakur Gulua (Speaker), Roman Janjgava at The Fourth International Conference „MODERN PROBLEMS IN APPLIED MATHEMATICS“, 2023, Tbilisi, Georgia.
• Boundary value problems for rectangular plates with voids having two circular holes, by Roman Janjgava (Speaker) at XIV Annual International Meeting of the Georgian Mechanical Union, 2023, Poti, Georgia.
• On shallow shells consisting of a binary mixture with voids, by Roman Janjgava (Speaker) at XXXVI International Enlarged Sessions of the Seminar of Ilia Vekua Institute of Applied Mathematics of Ivane Javakhisvili Tbilisi State University, 2022, Tbilisi, Georgia.
• Solution of some plane boundary value problems of stress concentration for elastic bodies with voids, by Roman Janjgava (Speaker) at XIII Annual International Meeting of the Georgian Mechanical Union, 2022, Batumi, Georgia.
• Some problems for materials with voids, by Bakur Gulua (Speaker), Tengiz Meunargia, Roman Janjgava at XXXV International Enlarged Sessions of the Seminar of Ilia Vekua Institute of Applied Mathematics of Ivane Javakhisvili Tbilisi State University, 2021, Tbilisi, Georgia.
• Some Basic Boundary Value Problems for Plane Theory of Elasticity for Materials with Voids, by Bakur Gulua (Speaker), Roman Janjgava at The Fourth International Conference on Applications of Mathematics and Informatics in Natural Sciences and Engineering, 2019, Tbilisi, Georgia.
• Solving boundary problems of thermoelastostatics for a porous circular ring with voids, by Bakur Gulua (Speaker), Roman Janjgava at IX Annual International Meeting of the Georgian Mechanical Union, 2018, Kutaisi, Georgia.
• Derivation of the System of Equations of Equilibrium for Plates Having Double Porosity, by Bakur Gulua (Speaker), Roman Janjgava at VII International Joint Conference of Georgian Mathematical Union & Georgian Mechanical Union Continuum Mechanics and Related Problems of Analysis, 2016, Batumi, Georgia.
• Analytical Solution of Classical and Non-Classical Boundary Value Contact Problems of Thermoelasticity for a Rectangular Parallelepiped Consisting of Contractible and Non-Contractible Elastic Layers a, by Natela Zirakashvili (Speaker), Nuri Khomasuridze, Roman Janjgava, Miranda Narmania at Second International Conference MODERN PROBLEMS IN APPLIED MATHEMATICS Dedicated to the 95th Anniversary of the I. Javakhishvili Tbilisi State University (TSU) & 45th Anniversary of the I. Vekua Insti, 2013, Tbilisi, Georgia.
• ANALYTICAL SOLUTION OF CLASSICAL AND NON-CLASSICAL BOUNDARY VALUE CONTACT PROBLEMS OF THERMOELASTICITY FOR MULTILAYER CYLINDRICAL BODIES CONSISTING OF COMPRESSIBLE AND INCOMPRESSIBLE LAYERS , by Nuri Khomasuridze (Speaker), Roman Janjgava, Natela Zirakashvili at IV Annual Meeting of the Georgian Mechanical Union, 2013, Kutaisi, Georgia.
• ON SOME NON-CLASSICAL THBRMOELASTICITY PROBLEMS FOR AN INCOMPRESSIBLE BODIES, by Nuri Khomasuridze (Speaker), Roman Janjgava at II International Conference "Non-classical problems of mechanics", 2012, Kutaisi. Georgia.
• ON SOME NON-CLASSICAL TERMOELASTICITY PROBLEMS FOR A THREE-LAYER RECTANGULAR PARALLELEPIPED, by Roman Janjgava (Speaker), Nuri Khomasuridze, Natela Zirakashvili at XXVI Enlarged Session of the Seminar of I. Vekua Institute of Applied Mathematics, 2012, Tbilisi, Georgia.
• On some problems of thermoelasticity for the rectangular parallelepiped with non-classical conditions on the surface, by Roman Janjgava (Speaker), Nuri Khomasuridze, Natela Zirakashvili at II International Conference of Georgian Mathematical union, 2011, Batumi, Georgia.
• SOME THERMOELASTICITY PROBLEMS FOR CYLINDRICAL BODIES WITH NON-CLASSICAL CONDITIONS ON THE SURFACE, by Nuri Khomasuridze (Speaker), Roman Janjgava, Natela Zirakashvili at INTERNATIONAL CONFERENCE “CONTINUUM MECHANICS AND RELATED PROBLEMS OF ANALYSIS” dedicated to the 70th anniversary of the Georgian National Academy of Sciences and the 120th birthday anniversary of its, 2011, Tbilisi, Georgia.
• Statement and Solution of Some Nonclassical Two-Dimensional Problems of Thermoelasticity, by Roman Janjgava (Speaker), Nuri Khomasuridze, Natela Zirakashvili at XXV Enlarged Session of the Seminar of I. Vekua Institute of Applied Mathematics, 2011, Tbilisi, Georgia.
• PROBLEMS OF STRESS DELOCALIZATION (LOCALIZATION) IN MULTILAYER THERMOELASTIC CYLINDRICAL BODIES AND SOME QUESTIONS CONNECTED WITH THE USE OF THE BOUNDARY ELEMENT METHOD FOR SOLUTION OF ELASTICITY PRO, by Nuri Khomasuridze (Speaker), Roman Janjgava, Natela Zirakashvili at II Annual Meeting of the Georgian Mechanical Union, Dedicated to 105th Birthday Anniversary of Ilia Vekua, 2011, Tbilisi, Georgia.
• About construction of analytic and numerical solutions of some plane boundary value problems for mixture theory, by Roman Janjgava (Speaker), Natela Zirakashvili at International Conference on “Modern Problems in Applied Mathematics” Dedicated to the 90-th anniversary of Iv. Javakhishvili Tbilisi State University (TSU) and 40-th anniversary of I. Vekua Institute , 2008, Tbilisi, Georgia.
• On the Numerical Solution of a Problem on a Crack under Internal Pressure Filled with a Binary Mixture , by Roman Janjgava (Speaker), Natela Zirakashvili at International Conference “Architecture and construction – Contemporary Problems”, , 2008, Yerevan – Jermuk, Armenia.
• EFFECTIVE SOLUTION OF SOME BOUNDARY VALUE PROBLEMS OF I.N.VEKUA’S SHELL THEORY, by Nuri Khomasuridze (Speaker), Roman Janjgava, Natela Zirakashvili at ISAAC Conference "Complex Analysis, Partial Differential Equations, and Mechanics of Continua", Dedicated to the Centenary of I.Vekua, 2007, Tbilisi, Georgia.
• Solution of a Class of Boundary Value Problems of Vekua Plate Theory , by Nuri Khomasuridze (Speaker), Roman Janjgava, Natela Zirakashvili at International Conference “Non-Classic Problems of Mechanics”, 2007, Kutaisi, Georgia.
• An application of the boundary element method for solving of the boundary value problems for binary mixtures, by Roman Janjgava (Speaker), Natela Zirakashvili, Manana Mosia, Miranda Narmania at XX Enlarged Session of the Seminar of I. Vekua Institute of Applied Mathematics, 2006, Tbilisi, Georgia.
• The numerical solutions of some problem for bynary mixture by mains of boundary element method , by Roman Janjgava (Speaker), Natela Zirakashvili, Manana Mosia, Miranda Narmania at IV Congress of Georgian Mathematical Union, 2005, Tbilisi, Georgia.

Publications

• Roman Janjgava, Approximate solution of plane problems about stress concentrations in elastic bodies with voids, J Eng Math 144,17, Springer , 2024.
• Bakur Gulua, Roman Janjgava, Tamar Kasrashvili, Miranda Narmania, Solution of the Kirsch Problem for the Elastic Materials with Voids in the Case of Approximation N=1 of Vekua’s Theory, Analysis, Applications, and Computations. ISAAC 2021. Trends in Mathematics, 225–233, Birkhäuser, Cham, 2023.
• Roman Janjgava, Miranda Narmania, Solution of some boundary value problems of tension-compression and bending of plates in the case of the N=1 approximation of the Vekua theory, AMIM, Vol. 27, No. 1, 41-65, Tbilisi State University, 2022.
• Roman Janjgava, Solution of some three-dimensional boundary value problems for thermoelastic bodies with voids, Journal of Thermal Stresses, 44(11),1349-1365, Taylor&Francis, 2021.
• Roman Janjgava, Bakur Gulua, Soso Tsotniashvili, Some Boundary Value Problems for a Micropolar Porous Elastic Body, Arch. Mech. Vol 72, No 6, 485-509 , Polish Academy of Sciences, 2020.
• Roman Janjgava, Bakur Gulua, Boundary Value Problems of the Plane Theory of Elasticity for Materials with Voids, Applications of Mathematics and Informatics in Natural Sciences and Engineering, Springer Proceedings in Mathematics&Statistics, 334, 227-236 , Springer, 2020.
• Roman Janjgava, Solution of the Kirsch problem for a binary mixture in the case of approximation N =1 of Vekua’s theory, Mathematics and Mechanics of Solids, 24(7), 2017-2029, SAGE Publishing, 2019.
• Roman Janjgava, Approximate Solution of Some Plane Boundary Value Problems for Perforated Cosserat Elastic Bodies, Advances in Applied Mathematics and Mechanics,11(5), 1064-1083, Global Science Press, 2019.
• Bakur Gulua, Roman Janjgava, Tamar Kasrashvili, Miranda Narmania, Some BVP in the plane theory of thermodynamics with microtemperatures, AMIM, 24 (2), 10-19, Tbilisi University Press, 2019.
• Roman Janjgava, Some Three-Dimensional Boundary Value and Boundary-Contact Problems for an Elastic Mixture with Double Porosity, The Quarterly Journal of Mechanics and Applied Mathematics, 74(4), 411-425, Oxford University Press, 2018.
• Bakur Gulua, Roman Janjgava, The basic boundary value problem for the plane theory of elasticity of porous Cosserat media with triple-porosity, Proceedings of I. Vekua Institute of Applied Mathematics Volume 67, 41-50, Tbilisi University Press, 2017.
• Roman Janjgava, A Conditions of Existence of Neutral Surfaces in the Shells Consisting of Binary Mixtures, AMIM (Applied Mathematics, Informatics and Mechanics) 22(1), 2017, 47-64, Tbilisi University Press , 2017.
• Roman Janjgava, Bakur Gulua, Miranda Narmania, The Boundary Value Problem of Plates with Double Porosity by the Vekua Method for Approximations N=1, AMIM (Applied Mathematics, Informatics and Mechanics) 22(1), 2017, 50-57, Tbilisi University Press , 2017.
• Roman Janjgava, Bakur Gulua, The Dirichlet Boundary Value Problem of Porous Cosserat Media with Triple-porosity for the Concentric Circular Ring, AMIM 22 (1), 42-49, Tbilisi University Press , 2017.
• Bakur Gulua, Roman Janjgava, Some basic boundary value problems for plane theory of elasticity of porous Cosserat media with triple‐porosity, PAMM·Proc.Appl.Math.Mech.17, 705–706, Wiley, 2017.
• Bakur Gulua, Roman Janjgava, Boundary value problems of the theory of elasticity of porous Cosserat media for solids with triple-porosity, Reports of Enlarged Session of the Seminar of I. Vekua Institute of Applied Mathematics, Volume 31, 55-58, Tbilisi University Press, 2017.
• Bakur Gulua, Roman Janjgava, Tamar Kasrashvili, One problem of porous Cosserat media for solids with triple-porosity, AMIM, 22 (2), 3-15, Tbilisi University Press, 2017.
• Bakur Gulua, Roman Janjgava, Miranda Narmania, Derivation of System of the Equations of Equilibrium for Shallow Shells and Plates, Having Double Porosity, AMIM, 21 (2), 16-37, Tbilisi University Press, 2016.
• Roman Janjgava, Miranda Narmania, The solution of some two-dimensional problems of thermoelasticity taking into account the microtemperature, Journal of Thermal Stresses, Taylor&Francis, Philadelphia, 39(1), 57-64, Taylor&Francis, 2016.
• Roman Janjgava, About the plane theory of poroelasticity for the binary mixture with double porosity, Reports of Enlarged Sessions of the Seminar of I. Vekua Institute of Applied Mathematics, 30, 2016, 31-34, Tbilisi University Press , 2016.
• Roman Janjgava, Miranda Narmania, Some Statically Definable Problems For Cylindrical Shells, AMIM (Applied Mathematics, Informatics and Mechanics) 21(2), 65-73, Tbilisi University Press , 2016.
• Roman Janjgava, About one method of construction of approximate solutions of some boundary value problems, Seminar of I. Vekua Institute of Applied Mathematics, Reports, 42,10-26;, Tbilisi University Press , 2016.
• Roman Janjgava, Miranda Narmania, One Effect for Bodies with Double Porosity in the case of Plane Deformation, Bulletin of TICMI, 20(1), 32-47, Tbilisi University Press , 2016.
• Roman Janjgava, Elastic Equilibrium of Porous Cosserat Media with Double Porosity, Advances in Mathematical Physics, Advances in Mathematical Physics, Article ID 4792148, 9p, Hindawi Publishing Corporation, 2016.
• Roman Janjgava, The Approximate Solution of Some Plane Boundary Value Problems of the Moment Theory of Elasticity, Advances in Mathematical Physics, Hindawi Publishing Corporation, Article ID 3845362, 12 p,, Hindawi Publishing Corporation, 2016.
• Roman Janjgava, Nuri Khomasuridze, Solution of some boundary value thermoelasticity problems for a rectangular parallelepiped taking into account microthermal effects, Meccacica, An International Journal of Theoretical and Applied Mechanics, 51(1), 211–221, Springer, 2016.
• Roman Janjgava, Miranda Narmania, Some Two-dimensional Thermoelasticity Boundary Value Problems for Cosserat Continuum with Microtemperature, Proceedings of I. Vekua Institute of Applied Mathematics, 66,19-23, Tbilisi University Press , 2016.
• Roman Janjgava, Derivation of nonlinear equations for shallow shells, consisting of a mixture of two isotropic materials, Proceedings of I. Vekua Institute of Applied Mathematics, 65, 12-26;, Tbilisi University Press , 2015.
• Nuri Khomasuridze, Roman Janjgava, Natela Zirakashvili, Some non-classical thermoelasticity problems for a rectangular parallelepiped, Meccanica, Volume 49, Issue 6, pp 1337-1342, Springer, 2014.
• Nuri Khomasuridze, Roman Janjgava, Natela Zirakashvili, ANALYTICAL SOLUTION OF CLASSICAL AND NON-CLASSICAL BOUNDARY VALUE CONTACT PROBLEMS OF THERM OELASTICITY FOR SPHERICAL BODIES CONSISTING OF COMPRESSIBLE AND INCOMPRESSIBLE ELASTIC LAYERS, APPLIED MATHEMATICS, INFORMATICS AND MECHANICS, AMIM, Vol. 19, No 1, 2014, 17-39, Tbilisi University Press, 2014.
• Nuri Khomasuridze, Natela Zirakashvili, Roman Janjgava, Miranda Narmania, Analytical solution of classical and non-classical boundary value contact problems of thermoelasticity for a rectangular parallelepiped consisting of compressible and incompressible elastic layers and, Archive of Applied Mechanics, Volume 84, Issue 12, pp 1701-1713, Springer, 2014.
• Nuri Khomasuridze, Roman Janjgava, Natela Zirakashvili, ANALYTICAL SOLUTION OF CLASSICAL AND NON-CLASSICAL BOUNDARY VALUE CONTACT PROBLEMS OF THERMOELASTICITY FOR CYLINDRICAL BODIES CONSISTING OF COMPRESSIBLE AND INCOMPRESSIBLE ELASTIC LAYERS, APPLIED MATHEMATICS, INFORMATICS AND MECHANICS,Vol. 19, No 2, 2014, 18-35, Tbilisi University Press, 2014.
• Roman Janjgava, Construction of approximate solutions of some plane problems of thermoelasticity for transversal isotropic bodies, Reports of Enlarged Session of the Seminar of VIAM, 28, 54-57, Tbilisi University Press , 2014.
• Roman Janjgava, Nuri Khomasuridze, Some Non-Classical Boundary Value Problems of Thermoelasticity and a Three Dimensional Analogue of Muskhelishvili’s Thermal Effect, Journal of Thermal Stresses, 36(7),699-713, Taylor&Francis, Philadelphia, 2013.
• Nuri Khomasuridze, Roman Janjgava, Natela Zirakashvili, On some non-classical termoelasticity problems for a three-layer rectangular parallelepiped., Report of Enlarged Session of the Seminar VIAM, V.26, pp. 33-37, Tbilisi University Press, 2012.
• Nuri Khomasuridze, Roman Janjgava, Natela Zirakashvili, Statement and Effective Solution of Some Nonclassical Three-Dimensional Problems of Thermoelasticity, APPLIED MATHEMATICS, INFORMATICS AND MECHANICS, Vol.17 No.2, 2012, pp.3-19, Tbilisi University Press, 2012.
• Roman Janjgava, თერმოდრეკადობის ზოგიერთი სასაზღვრო ამოცანის ამოხსნა მართკუთხა პარალელეპიპედისათვის მიკროტემპერატურული ზემოქმედების გათვალისწინებით, საქართველოს მექანიკოსთა კავშირის III ყრილობა, მოხსენებათა თეზისები, თსუგამომცემლობა, 2012, გვ. 19, Tbilisi University Press, 2012.
• Nuri Khomasuridze, Roman Janjgava, ON SOME NON-CLASSICAL THBRMOELASTICITY PROBLEMS FOR AN INCOMPRESSIBLE BODIES, Proceedings of the II International Conference "Non-classical problems of mechanics", 2012, 71-74, , 2012.
• Nuri Khomasuridze, Roman Janjgava, Natela Zirakashvili, Statement and Solution of Some Nonclassical Two-dimensiolal Problems of Thermoelasticity, Reports of Enlarged Session of the Seminar of I.Vekua Institute of Applied Mathematics, 2011, v.25, 71-75, Tbilisi University Press, 2011.
• Nuri Khomasuridze, Roman Janjgava, Natela Zirakashvili, Determining the elastic equilibrium of a cylindrical shell by Vekua’s theory based on the classical elasticity theory and the theory of binary mixtures, Archive of Applied Mechanics, Volume 81, Number 4, 531-542, Springer, 2011.
• Nuri Khomasuridze, Roman Janjgava, Statement and Effective Solution of Some Nonclassical Problems of Thermoelasticity for a Rectangular Parallelepiped, Reports of Enlarged Session of the Seminar of I. Vekua Institute of Applied Mathematics, V. 24, 2010, pp. 73-77 , Tbilisi University Press, 2010.
• Roman Janjgava, თერმოდრეკადობის ზოგიერთი არაკლასიკური სამგანზომილებიანი ამოცანის დასმა და ეფექტური ამოხსნა, საქართველოს მათემატიკოსთა კავშირის I საერთაშორისო კონფერენცია, მოხსენებათა თეზისები, ბათუმი, 12-19 სექტემბერი, Tbilisi University Press, 2010.
• Nuri Khomasuridze, Roman Janjgava, Some non-classical elasticity problems for a rectangular parallelepiped, Proccedings of International Conference “Architecture and Construction – Contemporary Problems”, 2010, 164-170 , , 2010.
• Natela Zirakashvili, Roman Janjgava, Numerical Solution of Some Plane Boundary Value Problems of the Theory of Binary Mixtures by the Boundary Element Method, APPLIED MATHEMATICS, INFORMATICS AND MECHANICS, v.14, N 1, pp.79-95, Tbilisi University Press, 2009.
• Roman Janjgava, Derivation of a two-dimensional equation for shallow shells by means of the method of I. Vekua in the case of linear theory of elastic mixtures, Journal of Mathematical Sciences157(1), 70-78;, Springer, New York,, 2009.
• Natela Zirakashvili, Roman Janjgava, On the Numerical Solution of a Problem on a Crack under Internal Pressure Filled with a Binary Mixture , Proccedings of International Conference“Architecture and Construction – Contemporary Problems”, Yerevan – Jermuk, pp.145-149, Yerevan – Jermuk, 2008.
• Natela Zirakashvili, Roman Janjgava, On the Construction of Analytic and Numerical Solutions of Some Plane Boundary Value Problems of the Elastic Mixture Theory., APPLIED MATHEMATICS, INFORMATICS AND MECHANICS,v.13, N 1, pp.66-78., Tbilisi University Press, 2008.
• Roman Janjgava, On the Construction of Analytic and Numerical Solutions of Some Plane Boundary Value Problems of the Elastic Mixture Theory, AMIM (Applied Mathematics, Informatics and Mechanics) 13(1),66-78, Tbilisi University Press , 2008.
• Nuri Khomasuridze, Roman Janjgava, Natela Zirakashvili, Solution of Some Boundary Value Problems of Vekua Shell Theory With Symmetry And Anti-Symmetry Conditions At The Boundaries., APPLIED MATHEMATICS, INFORMATICS AND MECHANICS, v.12, N 2, pp.16-27., Tbilisi University Press, 2007.
• Nuri Khomasuridze, Roman Janjgava, Natela Zirakashvili, Solution of a Class of Boundary Value Problems of Vekua Plate Theory , Proceedings of International Conference “Non-Classic Problems of Mechanics”, Kutaisi, pp. 254-259, Kutaisi, 2007.
• Natela Zirakashvili, Roman Janjgava, Manana Mosia, Miranda Narmania, An application of the boundary element method for solving of the boundary-value problems for binary mixtures., Reports of Enlarged Sessions of the seminar of I.Vekua Institute of Applied Mathematics v.21, N1, pp. 68-71, Tbilisi University Press, 2007.
• Natela Zirakashvili, Roman Janjgava, Miranda Narmania, Manana Mosia, The Numerical Solutions of some Boundary-Value Problems of Binary Mixture Plane Theory by BEM, Bull. Georg. Acad. scien. 173, N1, Tbilisi, 2006, pp. 53-55,, GEORGIAN NATIONAL ACADEMY PRESS, 2006.
• Roman Janjgava, Giorgi Devdariani, Bakur Gulua, Dirichlet problem for the Marguere-von Karman equations system, Bulletin of TICMI, 10, 23-27 , Tbilisi University Press , 2006.
• Tamaz Vashakmadze, Roman Janjgava, On Construction and Justification of von Karman-Reissner Type Equations for Binary Mixture of the Elastic Plates, Proceedings, 1 (447), Georgian Technical University, Tbilisi, 2003, pp. 53-65 , Georgian Technical University, 2005.
• Roman Janjgava, The Numerical Solutions of Some Problems for Binary Mixtureby Means of Boundary Elements Method, საქართველოს მათემატიკოსთა IV ყრილობა, მოხსენებათა თეზისები, 14-16 ნოემბერი, თბილისი 2005, გვ. 58, Tbilisi University Press, 2005.
• Roman Janjgava, Partially Clamped Shallow Shells Composition of Binary Mixture, Reports of Enlarged Session of the Seminar of VIAM, 20(2), 41-44;, Tbilisi University Press , 2005.
• Roman Janjgava, Giorgi Devdariani, Manana Mosia, Reception and Investigation of Flexural and Membrane Equations of Plates Consisting of Binary Mixture, Applied Mathematics, Informatics and Mechanics, 9(1),13-38, Tbilisi University Press , 2004.
• Roman Janjgava, Bakur Gulua, About Plane Theory for Hemitropic Elastic Materials, Reports of Enlarged Session of the Seminar of I. Vekua Institute of Applied Mathematics, Volume 19 (1), 38-42, Tbilisi University Press , 2004.
• Tamaz Vashakmadze, Tengiz Meunargia, Roman Janjgava, To Construction of General Solutions of Reissner-Filon type Refined 2D Models for Thin-walled Elastic Mixtures, Proceeding TSU Appl. Math&Comp. Sci.vol.22-23, 2002-2003, pp.121-128 , Tbilisi University Press, 2003.
• Roman Janjgava, Tamaz Vashakmadze, On Construction and Justification of Von Karman-Reissner System of Equations for Elastic Plates Binary Mixtures, Trans. of the GTU, 447, 2003, 53-65, GTU, 2003.
• Roman Janjgava, Tamaz Vashakmadze, On the General Solution of Reissner-Filon Type System of Differential Equations for Elastic Plates Binary Mixtures, Proceedings of Javakhishvili Tbilisi State University. Applied Mathematics and Computer Sciences, 253 (22-23), 2003, 53-65, Tbilisi University Press, 2003.
• Roman Janjgava, Giorgi Devdariani, Manana Mosia, INVESTIGATION ON ONE NONLINEAR PROBLEM OF ISOTROPIC PLATE BY I. VEKUA’S METHOD FOR APPROXIMATION N=1, Proceedings of I. Vekua Institute of Applied Mathematics, 53, 1-14, Tbilisi University Press, 2003.
• Roman Janjgava, General Solution of Stretch-Press and Bending Equations of Binary Mixture Using I. Vekua method for N=1 Approximation, Reports Seminar of VIAM, 29,33-44, Tbilisi University Press , 2003.
• Roman Janjgava, Manana Mosia, Giorgi Devdariani, Investigation of an Equilibrium Problem of plate for St Venant-Kirchhoff Materials by I. Vekua’s method (N=1 approximation), Reports of Enlarged Sessions of the seminar of VIAM, 18(1-2), 60-63, Tbilisi University Press , 2003.
• Roman Janjgava, General Solution of System of Equations of Spherical Shallow Shells in Binary Mixtures, Proceedings of I. Vekua Institute of Applied Mathematics, 53, 20-32, Tbilisi University Press, 2003.
• Roman Janjgava, Some problems of Concentration of Stress for Plane Domains with Binary Mixtures, Reports of the Seminar VIAM, 17(1), 5-8, Tbilisi University Press , 2002.
• Roman Janjgava, The spherical Shell of binary Mixture, Reports of Enlarged Session of the seminar of VIAM, 16(2), 58-61, Tbilisi University Press , 2001.
• Roman Janjgava, On I. Vekua’s method in the theory of Elastic Mixtures, Bulletin of TICMI, 4, 47-51, Tbilisi University Press , 2000.
• Roman Janjgava, Solution of the Problem for Temperature Stresses in Plate, Using I. Vekua Method, Reports of Enlarged Sessions of the Seminar of VIAM, 15(1), 6-9;, Tbilisi University Press , 2000.