Department of Mathematics, Faculty of Mathematics and Natural Sciences, University of Jember held The International Conference on Mathematics, Geometry, Statistics, and Computation (IC-MaGeStiC) 2021 online (27/11). MaGeStiC is the first international seminar for mathematics department, and is closing of a series of international seminars at FMIPA UNEJ after previously there were three international seminars, IC2MS in Department of Chemistry, ICPIAM in Department of Physics and ICOLIB in Department of Biology. MaGeStiC 2021 has the theme “Building Networks and Collaborative Research on Mathematical Sciences“. Chairman of IC-MaGeStiC 2021, Dr. Kiswara Agung Santoso in plenary session said that MaGeStiC presented 4 Keynote Speakers, Prof. Nobuaki Obata from Ohoku University, Japan, Martianus Frederic Ezerman, Ph.D. from Nanyang Technological University, Singapore, Fernando Marmolejo-Ramos, Ph.D. from the University of South Australia, Australia, and Prof. Marko Vauhkonen from the University of Eastern Finland, Finland. “IC-MaGeStiC 2021 also presented 6 invited speakers, Natanael Karjanto Ph.D. from Sungkyunkwan University, Republic of Korea, Prof. Indah Emilia Wijayanti from Gadjah Mada University, Indonesia, Dr. Erry Hidayanto from University of Malang, Indonesia, Prof. I Made Tirta from University of Jember, Indonesia, Moh. Hasan, Ph.D. from University of Jember, Indonesia, and Dr. Kristiana Wijaya from University of Jember Indonesia,” he explained. Kiswara also revealed that IC-MaGeStiC 2021 was attended by 65 presenters and 60 of them had sent full papers to be presented in 6 parallel sessions, Computation, Graph and Algebra I, Graph and Algebra II, Modeling and Analysis, Statistics 1 and Statistics 2 and Education.

IC-MaGeStiC 2021 Department of Mathematics was officially opened by Dean of FMIPA, University of Jember Drs. Achmad Sjaifullah, M.Sc., Ph.D. In his remarks, Dean conveyed the IC-MaGeStiC 2021 agenda as closing in a series of international seminars organized by FMIPA UNEJ for the 57^th anniversary of University of Jember and the 22^nd anniversary of FMIPA UNEJ. “I really appreciate the committee and all The IC-MaGeStiC 2021 presenters, because even during the pandemic, it is still productive to exchange research results” he said, who also hoped that at next event we could meet face to face. IC-MaGeStiC 2021 is fully supported by Indonesian Mathematical Society (IndoMS), Indonesian Combinatorial Society (InaCombS) and Islamic Development Bank (IsDB) as well as Himpunan Mahasiswa Jurusan Matematika (HIMATIKA) as MC, moderator of parallel sessions and operator of zoom meetings.

MC HIMATIKA	Chairman of IC-MaGeStiC 2021 Dr. Kiswara Agung Santoso	Dekan FMIPA UNEJ: Drs. Achmad Sjaifullah, M.Sc., Ph.D.	Participant of IC-MaGeStiC 2021

The plenary session begins with presentation by Prof. Nobuaki Obata with title Quadratic Embedding Constants of Graphs moderated by Dr. Alfi Y. Zakiyyah, followed by Martianus Frederic Ezerman, Ph.D. with presentation title Holographic Sensing (on Images) moderated by Nathanael Karjanto Ph.D., then followed by a presentation from Prof. Elvira Horandl with the title Open Science Research Practices for Era of Big Data moderated by Dr. Alfian Futuhul Hadi, and plenary session ended with a presentation from Prof. Marko Vauhkonen with the title Electromagnetic Flow Tomography moderated by Prof. I Made Tirta.

Prof. Nobuaki Obata	Martianus Frederic Ezerman, Ph.D.	Fernando Marmolejo-Ramos, Ph.D.	Prof. Marko Vauhkonen
Dr. Alfi Y. Zakiyyah	Natanael Karjanto Ph.D.	Dr. Alfian Futuhul Hadi	Prof. I Made Tirta

After plenary session, it was followed by parallel session by starting with presentations from invited speakers in each room. In Room 1 Computation with 10 presenters, invited speaker Nathanael Karjanto, Ph.D. entitled Why is it so hard to get them talking?. Room 2 Graph & Algebra 1, Prof. Dr. Indah Emilia Wijayanti as an invited speaker delivered a presentation entitled Polynomial Rings in Post-quantum Cryptography System, followed by 11 presenters. In Room 3 Graph & Algebra 1 with 11 presenters, the presentation was started by Dr. Kristiana Wijaya with entitled On Ramsey minimal graphs for a 3-matching versus a path on five vertices. Room 4 Modeling and Analysis, Moh. Hasan, Ph.D. as an invited speaker delivered presentation entitled Two Dimensional Dynamics Simulation of Depositing Granular Materials. In Room 5 Statistics I, Prof. I Made Tirta with the presentation title Statistical modeling of high zero and heavily right skewed continuous responses using GAMLSS. The last room in the parallel session, Room 6 Statistics 2 and Education was also opened with invited speaker Dr. Erry Hidayanto entitled Mathematical Thinking in Mathematics Learning and Research Related to Mathematical Thinking. Selected papers will be published in Atlantis Press indexed by Web of Science (WoS) and others will be published in e-proceedings with ISBN.

Room 1 Computation: Nathanael Karjanto, Ph.D.	Room 2 Graph & Algebra 1: Prof. Dr. Indah Emilia Wijayanti	Room 3 Graph & Algebra 2: Dr. Kristiana Wijaya
Room 4 Modelling and Analysis: Moh. Hasan, Ph.D.	Room 5 Statistics I: Prof. I Made Tirta	Room 6 Statistics 2 & Education: Dr. Erry Hidayanto