Talks
January 21, 2014, Open seminar on Algebra and Combinatorics, Pusan National University, South Korea
January 24, 2014: Invited lecture, Korea-Japan Workshop on Algebra and Combinatorics (KJ2014), KAIST, South Korea
March 18, 2014: Algebra section in the meeting of the Mathematical Society of Japan, Gakushuin University
May 24, 2014: Invited lecture, International Conference on Discrete Mathematics and Applied Sciences (ICDMAS2014), University of Thai Chamber of Commerce
July 24, 25, 2014: The 16th international conference on Fibonacci numbers and their applications, Rochester Institute of Technology, New York, US
August 2, 2014: Invited lecture, The 27th international conference of the Jangjeon Mathematical Society, National Institute for Mathematical Sciences, Daejon, Republic of Korea
October 30, 2014: Analytic Number Theory, Research Institute for Mathematical Sciences, Kyoto University
January 8, 2015: Seminar, Nanjing University of Information Science and Technology, China
January 15, 2015: Seminar, Central China University of Science and Technology, China
January 30, 2015: Invited lecture, The 15th Japan-Korea Workshop on Algebra and Combinatorics, Kyushu Institute of Technology
February 3, 2015: Seminar, Institute of Mathematics, University of Tsukuba, Japan
March 7, 2015: Diophantine Analysis and related fields , Gunma, Japan
March 24, 2015: Spring meeting of Mathematical Society of Japan , Meiji University, Japan
May 13, 14, 22, 2015: Mevlana Lectures (3 talks), Akdeniz University, Antalya, Turkey
May 16, 2015: The 28th International Conference of the Jangjeon Mathematical Society (ICJMS2015), Akdeniz University, Antalya, Turkey
May 29, 2015: Main Speaker, LICMA15 , Beirut, Lebanon
June 29, 2015: National Mathematical Conference on Fractal Theory, Central China Normal University, Wuhan, China
July 6, 2015: JA2015 , University of Debrecen, Hungary
August 21, 2015: The 13th meeting for the Fibonacci research group
August 27, 2015: Plenary speaker, International Skorobohatko Mathematical Conference, Ivan Franko State Pedagogical University, Drohobych (Lviv), Ukraine
September 16, 2015: Autumn meeting of Mathematical Society of Japan, Kyoto Sangyo University, Japan
September 24, 2015: Seminar, Stellenbosch University, South Africa
September 25, 2015: Seminar, University of the Witwatersrand, South Africa
October 9, 2015: Seminar, The Chinese University of Hong Kong
November 4, 2015: Analytic Number Theory, Research Institute for Mathematical Sciences, Kyoto University
November 30, 2015: Algebraic Number Theory and related topics 2015, Research Institute for Mathematical Sciences, Kyoto University
December 17, 2015: Seminar, Universidad Panamericana, Mexico City
January 3 and 7, 2016: Seminars, Xiamen University, China@
January 25-28, 28-30, 2016: Seminar and KJ2016 (Korea-Japan workshop on Algebra and Combinatorics), Pusan Naitonal University, Republic of Korea
May, 22-June 4, 2016: Ecole de Recherche CIMPA - Tipaza, Theorie des Nombres et Applications, Tipaza, Algeria
June 15-17, 2016: Workshop on Dynamical System and Number Theory, Shandong University, China
June 27-July 2, 2016: The 17th International Conference on Fibonacci numbers and their applications, University of Caen, France
July 27, 2016: Number theory seminar, National Institute of Technology, Rourkela, Odisha, India
July 30, 2016: Colloquium: Trident Academy of Technology, Bhubaneswar, Odisha, India
August 1, 2016: International Workshop on Recent Trends in Mathematics and Applications (IWRTMA 2016), Department of Mathematics, Veer Surendra Sai University of Technology, Burla, Odisha, India
August 9, 2016: 10th Fukuoka Number Theory, Kyushu University, Japan
August 14-18, 2016: The Speaker, Lecture Series and Research Training on Diophantine Equations and Related Topics , Coco Palm Resort, Danao City, Philippines
August 26, 2016: The 14th meeting of Fibonacci Research Group, Tokyo University of Science, Japan
September 7, 2016: Shanghai Jiao Tong University, China
September 17, 2016: Autumn meeting of Mathematical Society of Japan, Kansai University, Japan
October 1, 2016: The third conference of Combinatorial methods, Universidad Sergio Arboleda, Bogota, Columbia
October 9, 2016: Integers Conference 2016, University of West Georgia, GA, USA
November 8, 2016: Matsue seminar, Shimane University, Japan
November 29, 2016: Algebraic Number Theory and Related Topics 2016, Research Institute for Mathematical Sciences, Kyoto University, Japan
December 10, 2016: Guest Seminar , Birla Institute of Technical Sciences, India
December 13, 2016: Prof. D. B. Wagh Endowment lectures (2 talks), Goa University , India
December 22, 2016: KMITL International Conference on Mathematics ? Number Theory, Graph Theory and Applications (KICM 2016), King Mongkukfs Institute of Technology Ladkrabang, Bangkok, Thailand
January 5, 2017: Seminar, Xiamen University, China
January 11, 2017: Seminar, South China Normal University
January 12, 2017: Seminar, South China University of Technology
February 2, 2017: Seminar, Kindai University, Osaka, Japan
February 6, 2017: Automorphic Forms and Related Topics 2017, Research Institute for Mathematical Sciences, Kyoto University, Japan
February 15, 2017: Seminar, University of Macau
May 24, 2017: International Workshop on Finite Groups, Table Algebras, and their Generalizations, Central China Normal University , Wuhan, China
June 8, 2017: Seminar, Northwest Agriculture and Forestry University
June 9, 2017: Seminar , Northwest University
June 16, 2017: Seminar , Shandong University, Weihai
July 4, 2017: JA2017 , University of Caen, France
July 17-19, 2017: Invited speaker, International conference in Number Theory and Applications 2017 (ICNA2017) , Kasetsert University, Thailand
August 9, 2017: 11th Fukuoka Number Theory, Kyushu Univeristy, Japan
August 25, 2017: The 15th meeting of Fibonacci Research Group, Tokyo University of Science, Japan
September 11-14, 2017: Autumn meeting of Mathematical Society of Japan, Yamagata University, Japan
October 12-26, 2017: Workshop on Number Theory, dedicated to Special number sequences and their generalizations, Universidad Panamericana, Mexico City
November 1, 2017: Analytic Number Theory and Related Topics 2017, Research Institute for Mathematical Sciences, Kyoto University, Japan
November 15, 2017: Chern Istitute of Mathematics Seminar, Nankai University
November 22-25, 2017: Des mini-cours en theorie combinatoire des nombres
Ses deuxiemes journees nationales sous le theme : Algebre, Theorie des Nombres et leurs applications, Universtite Mohamed premier, Faculte des Sciences, Oujda, Morocco -
December 1, 2017: Seminar, Indian Institute of Technology, Guwahati, India
December 12, 2017: Seminar, South China University of Technology
December 28, 2017: Seminar, Northwest University
January 3, 2018: Seminar , Xiamen University
January 15, 2018: Analytic and Arithmetic theory of Automorphic Forms, Research Institute for Mathematical Sciences, Kyoto University, Japan
February 5, 2018: Seminar, Indian Institute of Technology, Roorkee, India
February 8, 2018: Seminar, National Institute of Science Education and Research, Bhubaneswar, Odisha, India
February 14, 15, 16, 2018: Seminars (3 talks), Sambalpur University, Odisha, India
February 23, 24, 2018: Seminar (2 talks), RIKEN, iTHES, Saitama, Japan
May 17, 2018: Seminar, Zhejiang Sci-Tech University
May 30, 2018: Seminar, Center for Applied Mathematics at Tianjin University
June 26, 2018: Seminar, Academy of Mathematics and System Science, Chinese Academy of Sciences@
July 11, 2018: Seminar, Theoretical Statistics and Mathematics Unit, Indian Statistical Institute Delhi Centre, India
July 19, 2018: Seminar, National Institute of Technology, Rourkela, India
August 24, 2018: The 16th meeting of Fibonacci Research Group, Tokyo University of Science, Japan
September 21, 2018: Seminar, South China University of Technology
October 14, 2018: Seminar, Morningside Center of Mathematics, Chinese Academy of Sciences, Beijing
October 29-31: Analytic Number Theory and related topics , Research Institute for Mathematical Sciences, Kyoto University, Japan
November 9, 2018: Mathematics Seminar No.1708, Shanghai University
November 19, 2018: 2018 International Symposium on Information and Intelligence Computing, Zhejiang Sci-Tech University
December 13-15, 2018: Invited speaker, International conference in Number Theory and Applications 2018 (ICNA2018), Walailak University, Thailand On-line talk
May 18, 2019: The 15th International Conference on Number Theory and related topics, Bayannaoer, Inner Mongolia
June 21, 2019: Seminar, Sichuan University
July 23, 2019: Seminar, National Institute of Technology, Rourkela, India
July 26, 2019: Seminar, Waseda University
August 23, 2019: The 17th meeting of Fibonacci Research Group, Tokyo University of Science, Japan
October 16, 2019: Analytic Number Theory and related topics , Research Institute for Mathematical Sciences, Kyoto University, Japan
November 8, 2019: Seminar, Shandong University, Weihai Campus
December 14, 2019: Invited speaker, The Sixth Southwest Workshop on Number Theory, Chongqing
January 28-31, 2020: Keynote speaker, 2nd International Seminar on Recent Developments of Special Functions and their Computer Algebra, ANAND International College of Engineering, Jaipur, India
February 5,7, 2020: Seminar, Harish-Chandra Research Institute, Allahabad, India
February 28, 2020: Invited speaker, 3rd International Conference on Mathematics and Its Applications, Hassan II University, Casablanca, Morocco
October 30, 2020: Symposium on Modern Analytic Dynamical Systems and related fields, Lishui, Zhejiang
March 21, 2021: International Online Workshop on Approximation Theory-2021 (March 19-21, 2021), Ukraine (Online)
July 1, 2021: International Conference on Mathematics and its Applications in Science and Engineering (ICMASE 2021), Universidad de Salamanca, Spain (Online) 1-2 July, 2021
October 12, 2021: Analytic Number Theory and related topics, Research Institute for Mathematical Sciences, Kyoto University, Japan (Online)
February 8, 2022: Number Theory and Geometry seminar, Tokyo Institute of Technology, Japan (Online)
March 25, 2022: International Webinar on Special Functions and their Applications (IWSFA2022), University of Kerala, India (Online). March 21-25, 2022
June 17, 2022: Invited speaker, INdAM workshop: International meeting on numerical semigroups - Roma 2022, Best Western Globus Hotel Roma, INdAM, June 13-17, 2022
January 23, 2023: Analytic and arithmetic aspects of automorphic representations, Research Institute for Mathematical Sciences, Kyoto University, Japan January 23-27, 2023
February 8, 2023: Seminar, Indian Institute of Technology Roorkee, India
February 15, 2023: Seminar, Indian Statistical Institute Delhi, India
March 29, 2023: Seminar, South China University of Technology, China
March 30, 2023: Seminar, South China Normal University, China
April 12, 2023: Seminar, Sichuan University, China
April 14, 2023: Seminar, Tianyuan Mathematical Center in Southwest China
April 28, 2023: Seminar, Xiamen University, China
May 10, 2023: Seminar, Yangzhou University, China
May 20, 2023: The 16th International Conference on Number Theory and Its Applications, Lintong, Xifan, China (May 19-22)
June 1, 2023: The 27th Annual Meeting in Mathematics (AMM2023) and International Conference in Number theory and Applications (ICNA2023), May 31-June 2, 2023, Kasetsert University, Bangkok, Thailand
June 6, 2023: Seminar, Walailak University, Nakorn Sri Thammarat, Thailand
June 15, 2023: Seminar, Capital Normal University, China
July 4, 2023: JA2023, Nancy, France (July 3-7)
July 18, 2023: Colloquium, Shimane University, Japan
July 27,28, 2023: Seminar (two talks), Indian Statistical Institute Bangalore centre
August 5, 2023: Seminar, Kerala School of Mathematics, Kozhikode
August 9, 2023: Seminar, Indian Institute of Technology Ropar, Punjab, India
August 10-13, 2023: Main lecturer, Lectures on Number Theory (four talks), Sant Longowal Institute of Engineering & Technology, Punjab, India
August 25, 2023: The 18th meeting of Fibonacci Research Group, Tokyo University of Science, Japan
October 25, 2023: Seminar, Shandong University
November 14, 2023: Seminar, Xiangtan University
November 21, 2023: Seminar, Xi'an Jiaotong University
November 29, 2023: November 29, 2023:Mathematics Seminar, Mahidol University International College, Thailand
December 1, 2023: Seminar, Kasetsart University, Thailand
December 4, 2023: Seminar, Silpakorn University, Thailand
December 26, 2023: Seminar, Beijing University of Technology
January 25, 2024: Research on automorphic forms, Research Institute for Mathematical Sciences, Kyoto University, Japan January 22-26, 2024
February 8, 2024: Mathematical Sciences Colloquium, Shiv Nadar Institution of Eminence (SNIOE)
February 15, 2024: Seminar, Indian Institute of Technology Ropar, India
February 21, 2024: Keynote lecture, International Conference on Recent Advances in Mathematical Physical and Chemical Sciences (ICRAMPC-2024), February 21-23, 2024, Mizoram University, Aizawal, India