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All papers published in this volume have been reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing.• Type of peer review: Double Anonymous• Conference submission management system: Morressier• Number of submissions received: 86• Number of submissions sent for review: 86• Number of submissions accepted: 30• Acceptance Rate (Submissions Accepted / Submissions Received × 100): 35%• Average number of reviews per paper: 1.00• Total number of reviewers involved: 42• Contact person for queries:Name: Linda YeAffiliation: The International Society for Applied Computing (ISAC)Email: linda.ye@applied-computing.net

All papers published in this volume of Journal of Physics: Conference Series have been peer reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing. Type of peer review: Double-blind. Neither authors nor reviewers know each other’s names. • Conference submission management system: CMT • Number of submissions received: 80 • Number of submissions sent for review: 80 • Number of submissions accepted:41 • Acceptance Rate (Number of Submissions Accepted / Number of Submissions Received X 100):51% • Average number of reviews per paper: 1-2 • Total number of reviewers involved:50 • Any additional info on review process: Contact person for queries: Linda Ye, The International Society for Applied Computing (ISAC), linda.ye@applied-computing.net

Peer review is the driving force of journal development, and reviewers are gatekeepers who ensure that Computation maintains its standards for the high quality of its published papers. Thanks to the cooperation of our reviewers, in 2020, the median time to first decision was 17 days and the median time to publication was 39 days. Abdelhamed, Waleed Mendonça, José Ricardo G. Abramovich, Haim Menéndez, Héctor D. Ahmad Taher Azar, Azar Messa, Gianandrea Vittorio Akkermans, Rinie Mewomo, Oluwatosin T. Alejski, Krzysztof Meyer, João F. C. A. Ali, Farman Michal, Malček Alshomrani, Ali Saleh Migallón, Héctor Amovilli, Claudio Mirjalili, Seyedali Anastassi, Zacharias A. Mitkowski, Piotr Anderson, Johan Mitra, Gaurav Angrecka, Sabina Modenutti, Carlos Anochi, Juliana Mohamed, Ali Wagdy Arnal, Josep Mohapatra, Sarat Arrabito, Giuseppe Domenico Molla, Mamun Arteta, Alberto Monné, Magnus Asadzadeh, Mohammad Zhian Montefusco, Eugenio Asai, Asaithambi Mosavi, Amir Aslam, Sheraz Moysis, Lazaros Ateeq-ur-Rehman, Sardar Mozaffari, Saeed Bača, Miroslav Mueller, Niklaus H. Bach, Mirjana Pejic Muhammad, Nazeer Badsha, Shahriar Muralidharan, Balaji Barisano, Donatella Murino, Teresa Bariviera, Aurelio Fernandez Narayanan, Barath Batagin-Neto, Augusto Nawani, Pranav Benslimane, Sidi Mohammed Neilsen, Mitchell L. Bergamaschi, Luca Neumann, Philipp Biscarini, Chiara Ngo, Son I. Blaisten-Barojas, Estela Nooraiepour, Mohammad Boghi, Andrea Ntaikou, Ioanna Bonanno, Claudio Ovgun, Ali Brandbyge, Mads Panangadan, Anand Brehm, Martin Pantazis, Dimitrios A. Bretti, Gabriella Park, Choonkil Bugiotti, Francesca Park, Won Kwang Bui, Ngoc-Tam Pasinszki, Tibor Burdett, Robert Patra, Braja Gopal Cabaleiro, David Pelinovsky, Efim Camacho-Conde, Jose Antonio Perc, Matjaz Campos Souza, Paulo Vitor Pérez-Delgado, María-Luisa Camposo Pereira, Artur Peszynska, Malgorzata Cantrak, Djordje Pietrowski, Wojciech Carp, Mihai Pimenidis, Elias Cavasotto, Claudio N. Pin, Paolo Ceron-Carrasco, Jose Pinheiro, Plácido Cesarano, Clemente Pinto, Gustavo Filipe Ceulemans, Arnout Pleiter, Dirk Chandar, Dominic Poklonsky, Alexander Chang, Xinghua Polap, Dawid Chasalevris, Athanasios Posada-Quintero, Hugo F. Chauhan, Vedang Dilipkumar Pour, Mohsen Saffari Chen, Duan Praks, Pavel Chen, Yiming Prudkovskiy, Vladimir S. Cheng, Yongguang Pugliese, Luigi Cho, Sun Young Qiao, Chen Choiński, Dariusz Quiroz-Juárez, Mario A. Civalek, Ömer Radenovic, Stojan Cleaver, Gerald Rahimi-Gorji, Mohammad Coelho, Vitor N. Rahimzadeh, Iman Coussens, Scott Rahmani, Farzin Dai, Jiguo Raiteri, Paolo Damasevicius, Robertas Raj, Nawin David, Oana Ranstam, Jonas De Carvalho-Junior, Francisco H. Rasuo, Bosko De La Sen, Manuel Rau, Henrike Delnevo, Giovanni Raucci, Umberto Dentale, Fabio Ribeiro, Ricardo Denzumi, Shuhei Rinaldi, Giovanni Devidson, Sergio Roccetti, Marco Dexter, Alexander Rodrigues, José Alberto Di Ilio, Giovanni Rodrigues, Simão Dogaru, Vasile Rogowski, Krzysztof Dominguez-Isidro, Saul Rossi, Andreina Druetta, Pablo Rudemo, Mats Duffey, Romney B. Rudshteyn, Benjamin Dzedzej, Zdzisław Rugh, Hans Henrik Elaiw, Ahmed M. Rusu, Eugen Eremin, Alexey S. Saad, Khaled M. Eshraghi, Shaun Sacco, Riccardo Fajín, José L. C. Saha, Biswajit Falk, Abram L. Sajavičius, Svajūnas Fiestras-Janeiro, Maria Gloria Sałabun, Wojciech Fiore, Silvia Salas-Morera, Lorenzo Frigau, Luca Salimi, Mehdi Fu, Chen Salvati, Luca Fu, Guopeng Sánchez Rodríguez, Luis Fukui, Ken-ichi Sánchez, María Teresa Gale, Carmen Sánchez-Torres, Juan Diego Garcia, Gregorio Bernabe Sanders, Peter Garcia-Constantino, Matias Sankaranarayanan, Nehru Viji Garcia-Gasulla, Marta Saseendran, Vishnu García-Ordás, María Teresa Sauer, Nathalie Geletii, Yurii Savaidis, Georgios Georgieva, Atanaska Sawerwain, Marek Gheorghe, Marian Scarinci, Teresa Gheorghiu, Calin-Ioan Schulz, Volker Paul Ghosh, Swarnava Senturk, Utku Giampietro, Letizia Sepúlveda, Mauricio Gilja, Gordon Severino, Alessandro Gill, Sukhpal Singh Sgouros, Aristotelis Giuliano, Aristide Shafique, Umar Gladkov, Sergey Shah, Zahir Glushkov, Alexander V. Shao, Sihong Goli, Preetham Sharma, Gokarna Golovnin, Oleg K. Shatanawi, Wasfi Gomha, Sobhi Shaw, Harry González-Gaxiola, Oswaldo Shehab, Wesam S. Gosselin, Ryan Sheikholeslami, Mohsen Grysa, Krzysztof Shen, Cong Hameed, Nazia Shrivastava, Indira Hammad, Mohamed Adel Siami-Namini, Sima Hassan, Saeed U. Simon-Chane, Camille He, Guanjie Smetuch, Nadin Heinlein, Alexander Snead, Lance Hemmati, Arman Soler, Jaime Hernik, Bartłomiej Soltani, Madjid Holik, Federico Song, Juyoung Hong, Tao Song, Tao Horák, Jakub Sonnino, Giorgio Howlin, Brendan Spyridonos, Panagiota Hsiao, Kai-Long Sreckovic, Vladimir A. Hsin, Kun-Yi Stanciu, Loredana Huang, Haiping Stehlík, Milan Huang, Yuli Strout, Douglas L. Hulman, Martin Strzelecki, Michał Igual, Jorge Su, Ching-liang Ikegaya, Naoki Subramanian, Karthikeyan Imai, Yasutaka Suo, Shuangfu Imam, Tasadduq Syed, Mujahid N. Inglese, Paolo Szeidert, Iosif Isidori, Daniela Szewczyk, Roman Ivančević, Darko Talbot, Denis Jackson, Mark Tang, Chaolong Jafari, Roy Tang, Xuelin Jakšić, Olga Tavelli, Maurizio Jameel, Shoaib Teimourian, Amir Jawab, Fouad Temuer, Chaolu Jia, Zhe Teng, Kah Hou Johonpillai, Andrew Gratien Tenreiro, Claudio Jradi, Walid Abdala Rfaei Testani, Claudio Kącka-Zych, Agnieszka Tomášková, Hana Kadijevich, Djordje M. Tonetti, Lorenzo Kapranov, Sergey Tong, Xin T. Karapınar, Erdal Torabi, Mohsen Karimov, Artur Tridane, Abdessamad Kavousanakis, Mihalis Tronci, Stefania Kaya, Savas Tsushima, Natsuki Keleshteri, Mohammad M. Tyrologou, Pavlos Keshwani, Deepak Tyutyunov, Yuri Khaki, Saeed Uruba, Václav Khan, Muhammad Altaf Vahab, Mohammad Khan, Yasir Vakhania, Nodari Khanh Le, Nguyen Quoc Varotsos, Panayiotis A. Khodadadian, Amirreza Vassilakis, Costas Khokhlov, Nikolay Vener, Mikhail V. Klimach, Harald Venkatraman, Sitalakshmi Komarov, Pavel V. Vergara, Diego Kong, Fande Verkhovtsev, Alexey Konopka, Stanisław Vlase, Sorin Konuralp, Ali Vlasiou, Manos Kordov, Krasimir Vulkov, Lubin G. Kouznetsova, Valentina Vulpe, Alexandru Kovács, Sándor Walker, A. Duncan Kumar, Sunil Wang, Hao Kumavor, Patrick D. Wang, Yi-Hsien Kuś, Marek Wang, Yinzhi Kyoungsik, Chang Wei, Zhouchao Labus, Aleksandra Weichbroth, Paweł Lahoz, Rafael Wilson, Michael Laín, Santiago Wright, Steven A. Lanconelli, Alberto Wu, Panruo Lardeau, Sylvain Wu, Xin-Ping Le, Jian Xu, Chao Ledesma, Ana Estela Xu, Yunhong Lee, Jaegeun Yang, Xusan Lee, Kuo Hao Yaraki, Mohammad Tavakkoli Leiss, Ernst Yemelyanov, Vitaliy A. Leister, Wolfgang Yu, Wenbin Leiviskä, Kauko Zelator, Konstantine Leonowicz, Zbigniew Zelepuga, Elena Li, Wei Zentkova, Maria Li, Wuchen Zhang, Haochun Liang, Kun Zhang, Lei Licina, Dusan Zhang, Liuyang Lim, Kian Meng Zhang, Tonghua Liu, Hui Zhang, Xuyang Mahajan, Sachit Zhao, Mingfei Małecki, Krzysztof Zhao, Xizeng Mallet, Dann Zheng, Fei Marchisio, Alberto Zhu, Congxu Marsalek, Ondrej Zhu, Yunpeng Marszałł, Michał Piotr Zia, Muhammad Yousuf Irfan Mehmood, Rashid Computation Editorial Office MDPI AG, St. Alban-Anlage 66, 4052 Basel, Switzerland

This volume contains the proceedings of the virtual workshop on Computational Aspects of Discrete Subgroups of Lie Groups, held from June 14 to June 18, 2021, and hosted by the Institute for Computational and Experimental Research in Mathematics (ICERM), Providence, Rhode Island.The major theme deals with a novel domain of computational algebra: the design, implementation, and application of algorithms based on matrix representation of groups and their geometric properties. It is centered on computing with discrete subgroups of Lie groups, which impacts many different areas of mathematics such as algebra, geometry, topology, and number theory. The workshop aimed to synergize independent strands in the area of computing with discrete subgroups of Lie groups, to facilitate solution of theoretical problems by means of recent advances in computational algebra.