 R.Enkhbat, Global Optimization Approach to Malfatti's Generalized Problem, The 10th International Conference on Optimization: Techniques and Applications (ICOTA10), pp.77, Ulaanbaatar, Mongolia, July 2326, 2016.
 T.Gruzdeva and R.Enkhbat, One Approach to Solving an Appliedore Processing Problem via D.C Optimization, pp.59, The 10th International Conference on Optimization: Techniques and Applications (ICOTA10), pp.77, Ulaanbaatar, Mongolia, July 2326, 2016.
 M.Barkova, R.Enkhbat and T.Gruzdeva, D.C Optimization Approach for Solving an Optimization Problem at OreDressing Plant, pp.72, The 10th International Conference on Optimization: Techniques and Applications (ICOTA10), pp.77, Ulaanbaatar, Mongolia, July 2326, 2016.
 R.Enkhbat, M.Bellalij, K.Jbilou and t.Bayartugs, Semidefinite Quasiconvex Programming, pp.101, The 10th International Conference on Optimization: Techniques and Applications (ICOTA10), pp.77, Ulaanbaatar, Mongolia, July 2326, 2016.
 R.Enkhbat, D.Bayanjargal and N.Tungalag, Application of Stochastic Differential Equations in Population Growth, pp.5, The First MongoliaRussiaVietnam Workshop on Numerical Solution of Differential and Integral Equations(NSDIE2016), pp.5, Ulaanbaatar, Mongolia, September 1011,2016.
 R.Enkhbat, N.Tungalag, A.Gornov and A.Anikin, The Curvilinear Search Algorithm for Solving ThreePerson Game, pp.20, International Conference on Discrete Optimization and Operations Research (DOOR2016), Vladivostok, Russia, September 1923,2016.
 R.Enkhbat, T.Gruzdeva and M.Barkova, Solving an OreDressing Plant Problem by Global Optimization, pp.57, 5th WorkshopSeminar on Nonlinear Analysis and Extremal Problems, Institute of Dynamic System and Control, 2025 June, Irkutsk, 2016.
 T.Bayartugs, S.Batbileg, M.MendAmar and R.Enkhbat, Application of Genetic Algorithm in Solving School Class Scheduling Problem, Conference on Mathematical Theory, Applications and Mathematical Education, pp.4344, Ulaanbaatar, Mongolia, May 14, 2015.
 N.Tungalag, L.Oyuntsetseg, R.Enkhbat and J.Enkhbayar, An Evaluation of Pension Insurance Reform Options for Mongolia, International Conference on Insurance and Risk Management, pp.13, July 1518, HangZhou, China, 2015.
 Ch.Ankhbayar, N.Tungalag and R.Enkhbat, Mathematical Model for Credit Risk Evaluation, International Conference on Insurance and Risk Management, pp.18, July 1518, HangZhou, China,2015.
 R.Enkhbat, Optimization Approach to Malfatti's Problem, Luyapunov Seminar, pp.49, Institute of Dynamic System and Control, November 30 December 2, Irkutsk, 2015.
 R.Enkhbat, and T.Bayartugs, On the Minimization and Maximization of Product of Two Concave Functions, Short Communications Abstracts, International Congress of Mathematicians(ICM2014), pp.576, Seoul, Korea, 1222 August 2014.
 R.Enkhbat, N.Tungalag and A.S.Strekalovsky, Average Cost Minimization Problem, 15th Baikal International SchoolSeminar: Optimization Methods and Their Applications, pp.97, Baikal, Irkutsk, June 30 July 6, 2014.
 R.Enkhbat, N.Tungalag and D.Bayanjargal, Analysis and Modeling of Mongolian Economic Structure, International Conference on Macroeconomic and Business Development of Mining Oriented Economy, May 16, pp.100113, 2014.
 T.Bayartugs and R.Enkhbat, Fractional Semidefinite Programming, The 9thInternational Conference on Optimization: Techniques and Applications(ICOTA9),pp.53,Taipei,Taiwan, December 1216, 2013.
 R.Enkhbat, J.Zhou and K.Teo, A Global Optimization Approach to Fractional Optimal Control, The 9th International Conference on Optimization: Techniques and Applications(ICOTA9),pp.43,Taipei,Taiwan, December 1216, 2013.
 R.Enkhbat, Global Method and Algorithm for Optimal Control Problems, The 2013 World Congress on Global Optimization, pp.8, Yellow Mountain, Anhui, China, July 812, 2013.
 T.Bayartugs and R.Enkhbat, Global Optimality Conditions for Semidefinite Quasiconvex Minimization Problem, pp.27, Yellow Mountain, Anhui, China, July 812, 2013.
 A.S.Strekalovsky and R.Enkhbat, On Solving Polymatrix Game, Lyupunov Readings, Institute of Dynamic System and Control Theory, Irkutsk, December 911, 2013.
 B.Barsbold, R.Enkhbat and A.Greiwank, Derivative Variation Approach for Some Class of Optimal Control, International Conference on Optimization, Simulation and Control, pp.23, Ulaanbaatar, Mongolia, July 14, 2013.
 R.Enkhbat, Recent Advances in Concave Programming, International Conference on Optimization, Simulation and Control, pp.53, Ulaanbaatar, Mongolia, July 14, 2013.
 R.Enkhbat and N.Tungalag, Average Cost Minimization Problem in the Firm Theory, International Conference on Optimization, Simulation and Control, pp.54, Ulaanbaatar, Mongolia, July 14, 2013.
 R.Enkhbat, J.Enkhbayar and A.Greiwank, Theory and Methods for Utility Maximization in Oligopsonistic Market, International Conference on Optimization, Simulation and Control, pp.55, Ulaanbaatar, Mongolia, July 14, 2013.
 Ya.Lutbat, R.Enkhbat and W.J.Hwang, A withinTime Horizon Network Modelling and Design, International Conference on Optimization, Simulation and Control, pp.71, Ulaanbaatar, Mongolia, July 14, 2013.
 T.Bayartugs and R.Enkhbat, Quasiconvex Semidefinite Convex Minimization Problem, Short Communications Abstracts, RussianMongolian Conference on Mathematical Modeling, Computational Technology and Optimal Control, 25 June  1 July, 2013, Khankh, Mongolia,pp.3.
 A.Enkhbolor, R.Enkhbat and HeungKook Choi, A Gradient Projection Algorithm to Restore Phase Contrast Microscopy Cell Image for Segmentation, The 9th International Conference on Multimedia Information Technology and Applications (MITA2013), July 25, 2013, Nikko Bali Resort, Bali, Indonesia, pp.35.
 R.Enkhbat, Development of Mathematics in Mongolia , 6th European Congress of Mathematics, July 27, 2012, Krakow, Poland.
 R.Enkhbat, B.Barsbold and A.Griewank, Derivative Variation Approach for Some Class of Optimal Control, the 5th International Conference on Optimization and Control with Applications, 48 December, 2012, Beijing, China, pp.42.
 T.Bayartugs and R.Enkhbat, A Computational Method for the Quasiconvex Maximization Problem, the 5th International Conference on Optimization and Control with Applications, 48 December, 2012, Beijing, China, pp.42.
 A.Enkhbolor, S.Cho, R.Enkhbat and HeungKook Choi, Filtered Histogram Equalization for Image Enhancement, The 8th International Conference on Multimedia Information Technology and Applications(MITA 2012), 46 July ,2012, China, pp.40.
 J.Enkhbayar and R.Enkhbat, Methods and Algorithms for Solving the Utility Maximization Problems, Short Communications Abstracts, RussianMongolian Conference on Mathematical Modeling,Computational Technology and Optimal Control, 1721 June, 2011, Khankh, Mongolia,pp.30.
 S.Batbileg and R.Enkhbat, Global Optimization Approach To Game Theory, Short Communications Abstracts, RussianMongolian Conference on Mathematical Modeling,Computational Technology and Optimal Control, 1721 June, 2011, Khankh, Mongolia,pp.10.
 R.Enkhbat, Theory, Methods and Applications of Concave Programming, Proceedings of 4th International Conference on Mathematics, its Applications and Mathematical Education, pp.104107, UlanUde, Russia, 27 June 1 July, 1317, 2011.
 J.Enkhbayar and R.Enkhbat, Methods and Algorithms for Solving the Utility Maximization Problems, Proceedings of 4th International Conference on Mathematics, its Applications and Mathematical Education, pp.71, UlanUde, Russia, 27 June 1 July, 1317, 2011.
 R.Enkhbat and Bayartugs, Convex Maximization with Matrix Variables, Proceedings of 4th International Conference on Mathematics, its Applications and Mathematical Education, pp.71, UlanUde, Russia, 27 June 1 July, 1317, 2011.
 Ya.Lutbat, R.Enkhbat and W.J.Hwang, Shortest Path Routing with LargeMargin, Proceedings of 7th International Conference on Multimedia Information Technology and Applications(MITA2011) , pp.8790, Ulaanbaatar, Mongolia, 69 July, 2011.
 D.Bayanjargal, R.Enkhbat and others, "Mathematical models for the Time lags of Enrichment Technological Process", Mathematics and Computer Scientific Conference, School of Mathematics and Computer, NUM, March 2930, Mongolia, 2011.
 D.Bayanjargal, R.Enkhbat, Ch.Altannar, "Investigating Dutch Disease on the Mining Sector Using VECM", Conference of Applied Mathematics, Economic Business School of Mongolian State University of Agriculture, Ulaanbaatar, Mongolia, 2011.
 D.Bayanjargal, R.Enkhbat, J.Enkhbayar, "Analysing and Forecasting of Concentration of Copper Using Time Series", Conference on Mining technology, Economics and Ecology, School of Mining Engineering, MUST, Ulaanbaatar, Mongolia, 2012.
 R.Enkhbat, B.Barsbold, Sh.Gezegt and N.Byambadorj, Dynamic Model of Crashing Process of Ore, Scientific Conference on "Communication Technology in Mining" pp.29, May, 2011, Erdenet, Mongolia.
 M.MendAmar, R.Enkhbat, Sh.Gezegt and N.Byambazogt, Mathematical Modeling of Open Mining and Simulation Analysis, Scientific Conference on "Communication Technology in Mining" pp.6975, May, 2011, Erdenet, Mongolia.
 R.Enkhbat, N.Tungalag and D.Bayanjargal, Mathematical Model for Prediction of Population Growth, Proceedings of the First International Conference on Foresight and Forecasting, June 1112, 2010, Hustai National Park, Mongolia, pp.3237.
 R.Enkhbat, Convex and Concave Optimal Control Problems, Abstracts of International Conference on Applied Mathematics and Informatics, pp.141, Nov.28 Dec.3, 2010, SanAndres, Colombia
 A.Bayarbaatar, R.Enkhbat and T.Bayarbat, A Global Optimization Approach for Protein Folding, International Conference on Optimization, Simulation and Control, pp.42, Ulaanbaatar, Mongolia, July 2528, 2010.
 DangQuang Bui, R.Enkhbat and W.J.Hwang, Robust CrossLayer Design Schemes for EndtoEnd Throughput in Multichannel Wireless Networks, International Conference on Optimization, Simulation and Control, pp.51, Ulaanbaatar, Mongolia, July 2528, 2010.
 DangQuang Bui, R.Enkhbat and W.J.Hwang, Proportional QuasiFairness of EndToEnd Rates in Network Utility Maximization, International Conference on Optimization, Simulation and Control, pp.52, Ulaanbaatar, Mongolia, July 2528, 2010.
 R.Enkhbat and B.Barsbold, Optimal Embedding of Two Balls Into Polyhedral Set, International Conference on Optimization, Simulation and Control, pp.65, Ulaanbaatar, Mongolia, July 2528, 2010.
 R.Enkhbat, D.Bayanjargal and A.Griewank, Global Optimization Approach To The Solow Growth Theory, International Conference on Optimization, Simulation and Control, pp.66, Ulaanbaatar, Mongolia, July 2528, 2010.
 R.Enkhbat and Ya.Bazarsad, A Method for Fractional Programming, International Conference on Optimization, Simulation and Control, pp.67, Ulaanbaatar, Mongolia, July 2528, 2010.
 J.P.Torregoza, R.Enkhbat and W.J.Hwang, Global Optimization Of NonConvex Wireless Network Power Control, International Conference on Optimization, Simulation and Control, pp.128, Ulaanbaatar, Mongolia, July 2528, 2010.
 R.Enkhbat and J.Guddat, Parametric Optimization and Its Applications, Proceedings of 5th International Symposium "Generalized Statements and Solutions of Control Problems, pp.283297, Ulaanbaatar, Mongolia, September 1317, 2010.
 R.Enkhbat, B.SerOd and L.Amarsanaa, Optimization and Risk Management of Income for Households, Proceedings of 5th International Symposium "Generalized Statements and Solutions of Control Problems, pp.223, Ulaanbaatar, Mongolia, September 1317, 2010.
 M.MendAmar and R.Enkhbat, A Global Optimization Approach To Minty Variational Inequalities, Proceedings of 5th International Symposium "Generalized Statements and Solutions of Control Problems, pp.298, Ulaanbaatar, Mongolia, September 1317, 2010.
 R.Enkhbat, and Ya.Bazarsad, On the Minimization of ConvexConcave Fractional Programming, Proceedings of 5th International Symposium ”Generalized Statements and Solutions of Control Problems”, pp.312, Ulaanbaatar, Mongolia, September 1317, 2010.
 R.Enkhbat, S.Batbileg, Some Method and Algorithm for Solving D.C. Programming, Short Communications Abstracts, International Congress of Mathematicians, pp.582, Hyderabad, India, 1927 August 2010.

R.Enkhbat, Theory, Methods and Applications of Concave Programming, The First Congress on Global Optimization in Engineering and Sciences, Changsha, China, June 15, 2009, pp.2

W.Hwang, B.Barsbold and R.Enkhbat, Network Utility Maximization Problem with Monotonic Functions, The First Congress on Global Optimization in Engineering and Sciences, Changsha, China, June 15, 2009, pp.19

D. Bui, R.Enkhbat, and W. Hwang, â€œRobust Optimization in CrossLayer Design Scheme for EndtoEnd Throughput in MultiChannel Wireless Networks,â€ In Proceedings of Spring Conference of Korea Multimedia Society, Kwangju, Korea, May, 2009.

S.Nyamlkhagva, HeungKook Choi and R.Enkhbat, Optimized Brighness Preserving Weight Clustering Histogram Equalization, Annual Spring Conference of Korean Multimedia Society, pp.206209, May 2223, 2009, Korea

M.Kamada and R.Enkhbat, Spline Interpolation in Piecewise Constant Tension, SAMPTA'09, pp.14, Marseillle, May 1822, France , 2009.

I.Tseveendorj, C.Roucairol, B.Barsbold and R.Enkhbat, B.C.Cun, F.Galea, A Complex Search Techniques for Solving the Quadratic Assignment Problem, The International Conference on Multimedia, Information Technology and its Applications(MITA2009), pp.119124, August 1921, Osaka, Japan, 2009.

R.Enkhbat, Quasiconvex Programming, The International Conference â€œOptimal Control: Theory, Methods, Applicationsâ€, pp.283, Irkutsk , Russia , September 25 October 4, 2009

R.Enkhbat and A.Bayarbaatar, On the Maximum and Minimum Radius Problems over a Polyhedral Set, pp.46, 8th International Conference on Operations Research, 2529 February, 2008 Havana, Cuba.

R.Enkhbat, Quasiconvex Programming, pp.162, 4th International Conference on Generalized Solutions in Control Problems, pp.140, 2328 June, 2008, Buriyat, UlanUde, Russia.

R.Enkhbat, S.Batbileg and Ya.Bazarsad, An Algorithm for Solving Indefinite Quadratic Programming, pp.163, 4th International Conference on Generalized Solutions in Control Problems, pp.140, 2328 June, 2008, Buriyat, UlanUde, Russia.

R.Vogel, D.Byambasuren and R.Enkhbat, Human Capital and Economics Growth: The Case of Mongolia, pp.29, 35th Annual Meeting of Academy of Economics and Finance, February 1416, 2008 , Nashville, Tennessee, USA.

I.Tseveendorj, C.Roucairol, Bertrand Le Cun, Francois Galea, B.Barsbold and R.Enkhbat; A Complex Search Technique For Solving the Quadratic Assignment Problem, 4th International Conference on Generalized Solutions in Control Problems, pp.140, 2328 June, 2008, Buriyat, UlanUde, Russia.

R.Enkhbat, Convex and Concave Optimal Control Problems, Proceedings of the Korean Society for Industrial and Applied Mathematics, pp.21, Vol.4, No.3, May 3031, 2008

R.Enkhbat and J.Guddat, Computational Algorithms for Solving Some Optimization Problems in Microeconomics, pp.104, 9th International Conference â€œApproximation and Optimization in the Carbbean, March 27, 2008, SanAndres, Colombia.

O.Vasilieva and R.Enkhbat , "Can Parametric Optimization be Helpful for Solving Optimal Control Problems", 9th International Conference on Parametric Optimization and Related Topics, PAROPT9, Cienfuegos, Cuba, March 2630, 2007.

Gompil.B, Barsbold.B, R.Enkhbat and Hwang Won Joo, Nonconcave Network Utility Maximization Using Global Optimization Techniques, The Second International Conference on Optimization and Optimal Control, pp. 53, Ulaanbaatar , Mongolia , July 1720, 2007.

R.Enkhbat and J.Guddat, Parametric Multiobjective Optimization, The Second International Conference on Complementrity, Duality and Global Optimization in Science and Engineering, pp. 37, February 28  March 2, 2007, University of Florida, USA

Mendâ€“Amar M., B.Barsbold, R.Enkhbat and Fukushima M., A Global Optimization Approach for Solving Varational Inequality Problems, The Second International Conference on Optimization and Optimal Control, pp. 127, Ulaanbaatar, Mongolia, July 1720, 2007.

D. Byambasuren, R.Enkhbat and Richard Vogel, Endogenuos Growth Theory and its Applications, The Second International Conference on Optimization and Optimal Control, pp.151, Ulaanbaatar, Mongolia, July 1720, 2007.

R.Enkhbat and Ya.Bazarsad, General Quadratic Programming and its Applications in Response Surface Analysis, The Second International Conference on Optimization and Optimal Control, pp.117, Ulaanbaatar , Mongolia , July 1720, 2007.

Ch.Dagvadorj, R.Enkhbat and N.Tungalag, A Mathematical Model of Pension Insurance, Proceedings of International Conference on Transition Economy, pp.177191, Ulaanbaatar , Mongolia , May 2425, 2007.

R.Enkhbat and J.Guddat, Parametric Multiobjective Optimization, The Second International Conference on Complementarity, Duality and Global Optimization in Science and Engineering, February 28March 02, 2007, University of Florida, USA.
 R.Enkhbat, A Global Method for Solving the Quadratic Assignment Problem, Short Communications Abstracts, International Congress of Mathematicians, Madrid, 2030 August 2006, p.532.
 R.Enkhbat and J.Guddat, A Note on Inverse Parametric Linear Programming, Abstracts of the International Conference on Mathematics, Ulaanbaatar, 2527 July 2006, p.16.
 R.Enkhbat, Computational algorithms for solving the utility maximization problem, 8th International Conference on Parametric Optimization and Related Topics, Egypt, Nov.27Dec.1, 2005
 R.Enkhbat, On the Variational Inequality Problems, 2th Meeting of the Mongolian Mathematical Society, Ulaanbaatar, Mongolia, 2005.
 B.Barsbold, Ch.Altannar and R.Enkhbat, A Global Method for Solving the Convex Quadratic Maximization Problem, Proceedings of 13th Baikal International SchoolSeminar â€œOptimization Methods and Their Applicationsâ€, July 28, 2005, Irkutsk, Russia, pp.287291.
 R.Enkhbat, On the Minimization of a Strongly Convex Function, Proceedings of 13th Baikal International SchoolSeminar â€œOptimization Methods and Their Applicationsâ€, July 28, 2005, Irkutsk, Russia, pp.307312.
 R.Enkhbat, On the Convex and Nonconvex Optimal Control Problems, International Conference on â€œPartial Differential Equations in Mechanics and Stochasticâ€, Mongolian University of Science and Technology, June 1315, 2005, Ulaanbaatar, Mongolia.
 R.Enkhbat, Linear Parametric Programming, 1th Meeting of the Mongolian Mathematical Society, Ulaanbaatar, 2004.
 R.Enkhbat and T.Ibaraki, Analysis of Response Surface Problems using Quadratic Programming, 18th International Symposium on Mathematical Programming, August 1822, 2003, Copenhagen, Denmark, pp. 101
 R.Enkhbat. On Some Theory, Methods and Algorithms for Concave Programming, International Conference on Optimization and Optimal Control, pp. 56, Ulaanbaatar, Mongolia, August 1317, 2002
 R.Enkhbat. Global Optimization in Fractional Programming, Abstracts of Short Communications and Poster Sessions, International Congress of Mathematicians, Beijing, 2028 August, 2002, pp .325.
 R.Enkhbat and M.MendAmar, Parametric Optimization in Optimal Control Problem, International Conference on Optimization and Optimal Control, August 1317, 2002, Ulaanbaatar, Mongolia,pp 106
 R. Enkhbat, M.MendAmar and Ts.Javzandulam, A Global Search Algorithm for the Quadratic Assignment Problem, International Conference on Optimization and Optimal Control, August 1317, 2002, Ulaanbaatar, Mongolia, pp 23.
 R.Enkhbat, S.Davaasuren and L.Nyamjargal, A Mathematical Model of Biotechnological Processing of Ore, Seminar of Ecience and Technolgy, October 35, 2001, pp.120, Erdenet, Mongolia,
 R.Enkhbat, On the Maximization and Minimization of Quasiconvex Function, The Second International Conference on Nonlinear Analysis and Convex Analysis, July 30August 2, 2001, pp.48, Hirosaki, Japan
 R.Enkhbat, Modern General Equilibrium Theory, The First Simposium of Mongolian Students, August 2931, 2002, pp.90, Mongolia.
 S.Davaasuren and R.Enkhbat, Application of Response Surface Analysis to Enriching Process of Poor Ore in Mining, Russian and Mongolian Conference, Irkutsk, Russia, 1013 December 2000, pp.17.
 R.Enkhbat, Global Optimization in Microeconomic Analysis, 17th International Symposium on Mathematical Programming, August 711, 2000, Atlanta, USA, pp.32
 R.Enkhbat, Some Global Optimization Problems in Statistics, Sixth SIAM Conference on Optimization, May 1012, 1999, Atlanta, Georgia, USA, pp. 98.
 R.Enkhbat, Global Optimality Conditions for Some Class of Nonconvex Optimization Problems, Abstracts of Short Communications and Poster Sessions, International Congress of Mathematicians, Berlin, 1827 August .1998, pp 340.
 Ya.Bazarsad, R.Enkhbat. A Finite Method for Solving the Problems of Surface Design, Volume of absracts, â€œ96 International Conference on Nonlinear Programmingâ€. Beijing, China, (25 September 1996), pp.1314, 1996.
 Ya. Bazarsad and R.Enkhbat, Optimization Approach to Design of Experiments, 10th Seminar on Optimization and Applications, August 1995, Russia, Irkutsk, pp.2425.
 R.Enkhbat, General Approach to Some Problems of a Design of Experiment, The Second Asian Mathematical Conference, October 1720, 1995, Thailand, pp.31.
 R.Enkhbat, Application of Global Optimization Method Based on the Permissive Set to Design of Experiments, Short Communications Abstracts, International Congress of Mathematicians, Zurich, 311 August 1994, p.253.
 R.Enkhbat, C.Naranbat and D.Tsoodol. An Approach to the Solution of a Multiextremum Problem, volume of Abstracts, Seminar on Mathematical Programming and Applications, Russia, Ekatrenvurg, February 1993, pp.4344.
 R.Enkhbat. An Algorithm for Solving an Optimal Control Problem, Volume of Abstracts, International Seminar on Global Optimization, Baikal, Irkutsk, August 1992, pp.9798.
 A.S. Strekalovski and R.Enkhbat. To the Numerical Method for Finding a Global Maximum of Convex Function on an Arbitrary Set, Volume of Abstacts, International Seminar on Global Optimization, Baikal, Irkutsk, September 1989, pp.186187.
