PARTICIPATION IN CONFERENCES AND SEMINARS

• First Congress of Georgian Mathematicians (Tbilisi, Georgia, October, 1993) - speaker.
• Sixth International Colloquium on Differential Equations (Plovdiv, Bulgaria, August 18-23, 1995) - invited lecturer.
• Qualidiff 5 - Fifth Colloquium on the Qualitative Theory of Differential Equations (Szeged, Hungary, July 29-August 2, 1996) - speaker.
• DEMPh-97 - International Symposium on Differential Equations and Mathematical Physics dedicated to the 90th birthday anniversary of Academician I. Vekua (Tbilisi, Georgia, June 21-25, 1997) - scientific secretary of the Organizing Committee and speaker.
• Equadiff 9 - Conference on Differential Equations and Their Applications (Brno, Czech Republic, August 25-29, 1997) - speaker.
• Enlarged Session of the Seminar on Differential Equations and Mathematical Physics of A. Razmadze Mathematical Institute of the Georgian Academy of Sciences, dedicated to the 70th birthday anniversary of Professor T. Gegelia (Tbilisi, Georgia, April 15-16, 1998) - scientific secretary of the Session and speaker.
• ICDEA'98 - Fourth International Conference on Difference Equations and Applications (Poznan, Poland, August 27-31, 1998) - speaker.
• DEMPh-98 - Symposium on Differential Equations and Mathematical Physics dedicated to the 95th birthday anniversary of Academician V. Kupradze (Tbilisi, Georgia, November 3-6, 1998) - scientific secretary of the Symposium and speaker.
• Qualidiff 6 - Sixth Colloquium on the Qualitative Theory of Differential Equations (Szeged, Hungary, August 10-14, 1999).
• International Conference on Differential and Functional Differential Equations (Moscow, Russia, August 16-21, 1999) - speaker.
• Seminar on Ordinary Differential Equations of Masaryk University (Brno, Czech Republic, November, 1999).
• Seminar on Differential Equations of Palacky University (Olomouc, Czech Republic, December, 1999).
• Seminar on Differential Equations and Integration Theory of Mathematical Institute of the Academy of Sciences of the Czech Republic (Prague, Czech Republic, December, 1999).
• DEMPh-01 - Symposium on Differential Equations and Mathematical Physics dedicated to the 110th birthday anniversary of Academician N. Muskhelishvili (Tbilisi, Georgia, July 23-25, 2001) - scientific secretary of the Symposium and speaker.
• III Congress of Georgian Mathematicians (Tbilisi, Georgia, October 11-13, 2001) - speaker.
• International Conference on Functional Differential Equations and Applications (Beer-Sheva, Israel, June 9-13, 2002) - speaker.
• International Conference on Differential and Functional Differential Equations (Moscow, Russia, August 11-17, 2002).
• Seminar for Ph. D. students in mathematics of the Department of Pure and Applied Mathematics of the University of Modena and Reggio Emilia (Modena, Italy, March, 2003).
• International Conference "Ordinary Differential Equations and Applications" dedicated to the 80th birthday anniversaries of Professors Roberto Conti and Gaetano Villari (Florence, Italy, May 19-20, 2003) - invited speaker.
• First Republican Conference of Young Scientists (Kutaisi, Georgia, October 10-12, 2003) - speaker.
• DEMPh-03 - Symposium on Differential Equations and Mathematical Physics dedicated to the 100th birthday anniversary of Academician V. Kupradze and 90th birthday anniversary of Academician N. Vekua (Tbilisi, Georgia, December 24-25, 2003) - academic secretary of the Symposium and speaker.
• 4ECM - Fourth European Congress of Mathematics (Stockholm, Sweden, June 27-July 2, 2004).
• Second Republican Conference of Young Scientists (Kutaisi, Georgia, October 8-10, 2004) - speaker.
• CIMPA (Centre International de Mathematiques Pures et Appliquees) Summer School in Arithmetic and Geometry Around Hypergeometric Functions - AGAHF_2005 (Istanbul, Turkey, June 13-25, 2005).
• International Conference on Differential & Difference Equations and Applications (Melbourne, Florida, USA, August 1-5, 2005) - invited speaker.
• IV Congress of Georgian Mathematicians (Tbilisi, Georgia, November 14-16, 2005) - speaker.
• CDDE-2006 - International Colloquium on Differential and Difference Equations dedicated to Professor Jaroslav Kurzweil on the occasion of his 80th birthday (Brno, Czech Republic, September 5-8, 2006) - speaker.
• Seminar on Differential Equations of Masaryk University (Brno, Czech Republic, March 19, 2007).
• Seminar on Differential Equations and Integration Theory of Mathematical Institute of the Academy of Sciences of the Czech Republic (Prague, Czech Republic, March 22, 2007).
• Qualidiff 8 - Eighth Colloquium on the Qualitative Theory of Differential Equations (Szeged, Hungary, June 25-28, 2007) - invited speaker.
• Workshop on Differential Equations "Boundary Value Problems and Related Topics" (Hejnice, Czech Republic, September 16-20, 2007) - invited speaker.
• CDDEA 2008 - International Conference on Differential and Difference Equations and Applications 2008 (Strecno, Slovak Republic, June 23-27, 2008) - member of the programme committee.
• WCNA-2008 - Fifth World Congress of Nonlinear Analysts (Orlando, Florida, USA, July 2-9, 2008) - invited speaker.
• Seminar on Differential Equations of Masaryk University (Brno, Czech Republic, October 6, 2008).
• CDDEA 2010 - International Conference on Differential and Difference Equations and Applications 2010 (Rajecke Teplice, Slovak Republic, June 21-25, 2010) - member of the programme committee and invited speaker.
• Conference of A. Razmadze Mathematical Institute dedicated to the 120th birthday anniversary of Academician N. Muskhelishvili (Tbilisi, Georgia, November 29 - December 3, 2010) - speaker.
• 9QTDE - 9th Colloquium on the Qualitative Theory of Differential Equations (Szeged, Hungary, June 28 - July 1, 2011) - speaker.
• International Conference “Continuum Mechanics and Related Problems of Analysis” to celebrate the 70th anniversary of the Georgian National Academy of Sciences & the 120th birthday of its First President, Academician N. Muskhelishvili (Tbilisi, Georgia, September 9-14, 2011) - Vice-Chairman of the Organizing Committee.
• QUALITDE-2011 – International Workshop on the Qualitative Theory of Differential Equations dedicated to the 70th birthday anniversary of Professor T. Chanturia (Tbilisi, Georgia, November 4-6, 2011) – Chairman of the Organizing Committee and speaker.
• Conference of A. Razmadze Mathematical Institute of I. Javakhishvili Tbilisi State University (Tbilisi, Georgia, November 28 – December 2, 2011) – speaker.
• Czech-Georgian Workshop on Boundary Value Problems - WBVP-2011 (Brno, Czech Republic, December 5-9, 2011) – invited speaker.
• Conference of A. Razmadze Mathematical Institute of I. Javakhishvili Tbilisi State University (Tbilisi, Georgia, December 2-6, 2013) – speaker.
• QUALITDE-2013 – International Workshop on the Qualitative Theory of Differential Equations dedicated to the 100th birthday anniversary of Professor L. Magnaradze (Tbilisi, Georgia, December 20-22, 2013) – Chairman of the Organizing Committee and speaker.
• Czech-Georgian Workshop on Boundary Value Problems - WBVP-2014 (Brno, Czech Republic, January 21-24, 2014) – invited speaker.
• Conference of A. Razmadze Mathematical Institute of I. Javakhishvili Tbilisi State University (Tbilisi, Georgia, November 24-28, 2014) – speaker.
• QUALITDE-2014 – International Workshop on the Qualitative Theory of Differential Equations dedicated to the 125th birthday anniversary of Professor A. Razmadze (Tbilisi, Georgia, December 18-20, 2014) – Chairman of the Organizing Committee and speaker.
• Czech-Georgian Workshop on Boundary Value Problems - WBVP-2015 (Brno, Czech Republic, January 26-27, 2015) – invited speaker.
• QUALITDE-2015 – International Workshop on the Qualitative Theory of Differential Equations (Tbilisi, Georgia, December 27-29, 2015) – Chairman of the Organizing Committee and speaker.
• Czech-Georgian Workshop on Boundary Value Problems - WBVP-2016 (Brno, Czech Republic, February 8-11, 2016) – invited speaker.
• International Scientific Conference “Differential Equations and Their Applications” dedicated to the 70th birthday anniversary of Academician M. O. Perestyuk (Uzhhorod, Ukraine, May 19-21, 2016) – speaker.
• Conference of A. Razmadze Mathematical Institute of I. Javakhishvili Tbilisi State University (Tbilisi, Georgia, December 12-16, 2016) – speaker.
• QUALITDE-2016 – International Workshop on the Qualitative Theory of Differential Equations dedicated to the 100th birthday anniversary of Professor A. Bitsadze (Tbilisi, Georgia, December 24-26, 2016) – Chairman of the Organizing Committee and speaker.
• Czech-Georgian Workshop on Boundary Value Problems - WBVP-2017, on the occasion of 80s birthday of I. Kiguradze (Brno, Czech Republic, January 10-23, 2017) – invited speaker.
• International Workshop “Nonlinear Analysis and Nonautonomous Ordinary Differential Equations” (Odessa, Ukraine, June 23-27, 2017) – speaker.
• Conference of A. Razmadze Mathematical Institute of I. Javakhishvili Tbilisi State University (Tbilisi, Georgia, December 12-14, 2017) – speaker.
• QUALITDE-2017 – International Workshop on the Qualitative Theory of Differential Equations dedicated to the 110th birthday anniversary of Professor I. Vekua (Tbilisi, Georgia, December 24-26, 2017) – Chairman of the Organizing Committee and speaker.

· Czech-Georgian Workshop on Boundary Value Problems - WBVP-2018 (Brno, Czech Republic, January 29 - February 2, 2018) – invited speaker.

· XVIII International Scientific Conference on Differential Equations “Erugin’s Readings - 2018” (Grodno, Belarus, May 15-18, 2018) – speaker.

· The Seventh International Workshop-2018 “Constructive Methods for Non-Linear Boundary Value Problems” dedicated to Prof. M. Ronto on the occasion of his 75^th birthday (Miskolc, Hungary, July 5-8, 2018) – invited speaker and the member of the program committee.

· QUALITDE-2018 – International Workshop on the Qualitative Theory of Differential Equations dedicated to the 100^th anniversary of I. Javakhishvili Tbilisi State University (Tbilisi, Georgia, December 1-3, 2018) – Chairman of the Organizing Committee and speaker.

· Conference of A. Razmadze Mathematical Institute of I. Javakhishvili Tbilisi State University dedicated to the 90^th birthday anniversary of Academician N. Berikashvili (Tbilisi, Georgia, February 25-28, 2019) – speaker.

· Czech-Georgian Workshop on Boundary Value Problems – WBVP-2019 (Brno, Czech Republic, May 27-30, 2019) – invited speaker.

· QUALITDE-2019 – International Workshop on the Qualitative Theory of Differential Equations (Tbilisi, Georgia, December 7-9, 2019) – Chairman of the Organizing Committee and speaker.

· Conference of A. Razmadze Mathematical Institute of I. Javakhishvili Tbilisi State University dedicated to the 125^th birthday anniversary of Prof. A. Kharadze (Tbilisi, Georgia, February 11-14, 2020) – speaker.

· QUALITDE-2020 – International Workshop on the Qualitative Theory of Differential Equations (Tbilisi, Georgia, December 19-21, 2020) – Chairman of the Organizing Committee and speaker.

· Conference of A. Razmadze Mathematical Institute of I. Javakhishvili Tbilisi State University dedicated to the 75^th birthday anniversary of Prof. T. Shervashidze (Tbilisi, Georgia, February 16-19, 2021) – speaker.

· International Mathematical Conference “Seventh Bogdanov Readings on Ordinary Differential Equations”, dedicated to the 100^th anniversary of Prof. Yu. S. Bogdanov (Minsk, Belarus, June 1-4, 2021) – online speaker.

· QUALITDE-2021 – International Workshop on the Qualitative Theory of Differential Equations dedicated to the 130^th birthday anniversary of Academician N. Muskhelishvili (Tbilisi, Georgia, December 18-20, 2021) – Chairman of the Organizing Committee and speaker.

· International Conference “Differential Equations and Related Topics” dedicated to Ivan G. Petrovskii (Moscow, Russia, December 26-30, 2021) – keynote speaker (online).

· Conference of A. Razmadze Mathematical Institute of I. Javakhishvili Tbilisi State University dedicated to the 90^th birthday anniversary of Academician H. Inassaridze (Tbilisi, Georgia, February 15-18, 2022) – speaker (online).

· QUALITDE-2022 – International Workshop on the Qualitative Theory of Differential Equations (Tbilisi, Georgia, December 17-19, 2022) – Chairman of the Organizing Committee and speaker.

· Conference of A. Razmadze Mathematical Institute of I. Javakhishvili Tbilisi State University dedicated to the 120^th birthday anniversary of Academician V. Kupradze (Tbilisi, Georgia, February 14-17, 2023) – speaker.

· Czech-Georgian Workshop on Boundary Value Problems – WBVP-2023 (Brno, Czech Republic, June 6-8, 2023) – invited speaker.

· QUALITDE-2023 – International Workshop on the Qualitative Theory of Differential Equations dedicated to the 120^th birthday anniversary of Professor V. Kupradze (Tbilisi, Georgia, December 9-11, 2023) – Chairman of the Organizing Committee and speaker.

· Conference of A. Razmadze Mathematical Institute of I. Javakhishvili Tbilisi State University dedicated to the 100^th birthday anniversary of Professor G. Manjavidze and 95^th birthday anniversary of Academician N. Berikashvili (Tbilisi, Georgia, February 19-23, 2024) – speaker.

· Czech-Georgian Workshop on Boundary Value Problems – WBVP-2024 (Brno, Czech Republic, July 2-4, 2024) – invited speaker.

· XIV International Conference of the Georgian Mathematical Union (Batumi, Georgia, September 2-7, 2024) – speaker.

· QUALITDE-2024 – International Workshop on the Qualitative Theory of Differential Equations (Tbilisi, Georgia, December 21-23, 2024) – Chairman of the Organizing Committee and speaker.

· Conference of A. Razmadze Mathematical Institute of I. Javakhishvili Tbilisi State University dedicated to the 110^th birthday anniversary of Prof. B. Khvedelidze and 80^th birthday anniversary of Prof. T. Shervashidze (Tbilisi, Georgia, February 10-14, 2025) – speaker.

· International Conference “Differential Equations and Related Topics” dedicated to Ivan G. Petrovskii (Moscow, Russia, May 19-24, 2025) – speaker (online).