Algebra research group of FMIPA ITB will conduct Algebra Seminar virtually via zoom meeting on Wednesday-Thursday, 11-12 August 2021, 10:00-17:15 Jakarta Time about some relation between Groups, Probability, Graphs, and Matrices and locally recoverable codes and quantum codes from metacirculant graphs. The details are given in these posters below. Please fill this form to register

# Algebra

Algebra is a branch of mathematics concerning the study of structure, relation and quantity. Elementary (highschool) Algebra provides an introduction to the basic ideas of algebra, including effects of adding and multiplying numbers, the concept of variables, definition of polynomials. Algebra is much broader, algebra covers working with symbols, variables and set elements. Addition and multiplication are viewed as general operations, and their precise definitions lead to structures such as groups, rings and fields.

The research program of Algebra Research Division ITB covers the fundamental research with emphasis on the development of the theory of module with categorical approach, and the applied research with emphasis on the application of algebraic structures in control system, cryptography, coding theory and other areas.

Workshop on Teaching Algebra and Workshop on Research in Algebra are organized and held annually in alternating since 2011. Algebra Research Seminar is held weekly, as an opportunity to exchange ideas between young algebraists.

## Visiting Professors since 2008

Professor Gilbert Strang, MIT, USA, January 3th 2008. Professor Hidetoshi Marubayashi, Tokushima Bunri University, Japan, January 3th-7rd, 2008. Professor Cristodor Ionescu, Institute Mathematics Romanian Academy, Romania, July 29th 2008. Professor Michel Jambu, CIMPA, February 3th 2009, August 1st-11th 2011. Professor Patrick Sole, Paris Telecom, July 24th 2009. Associate Professor Gonzalo Aranda Pino, University of Malaga,

## Workshop on Graph and Group Theory by Prof. Ahmad Erfanian

A seminar and workshop on Graph and Group Theory by Prof. Ahmad Erfanian will be held with following details. Date: 29 November 2018 – 3 December 2018 Place: CAS Building, Insititut Teknologi Bandung Title: Graph and Group Theory This seminar was organized by Algebra Research Group and Combinatorial Mathematics Research Group ITB

## (5 Nov 2018) Short Seminar by Ayesha Asloob Qureshi, Ph.D

A short seminar was held with following details. Date: 5 November 2018 Place: Study Hall, CAS Building, Institut Teknologi Bandung Title: Algebraic Structures Arising from Isotonian Maps Between Posets A link for short abstract. Here This seminar was organized by Algebra Research Group ITB

## 18~19 Jan 2018: Two Days Workshop on Groups and Graphs

The Workshop on Groups and Graphs was held by Algebra Research Group on January 18th-19th, 2018 at Institut Teknologi Bandung. This material was presented by Professor Ahmad Erfanian from Department of Pure Mathematics, Ferdowsi University of Mashhad, Iran. Professor Ahmad Erfanian is an expert in group theory and also algebraic graph. At least 450 researchers

## Publication since 2005

International Journal P. Astuti and H. Wimmer, Characteristic invariant subspaces generated by a single vector, Linear Algebra and Applications, vol 470 (2015) 81-103. P. Astuti and H.Wimmer, Characteristic subspaces and hyperinvariant frames, Linear Algebra and Applications, 482(2015), pp. 21-46. P. Astuti and H.Wimmer, Hyperinvariant subspaces of locally nilpotent linear transformations, Linear Algebra and Applications, 486 (2015), pp. 469-474 A. Barra and H. Gluesing-Luerssen, MacWilliams Extension Theorem and The Local Global Property for Codes over Frobenius Rings, Journal of Pure and Applied

## 6 Nov 2015: Professor Ruud Pellikaan from TU Eindhoven

A talk by Prof. Ruud Pellikaan from TU Eindhoven on “Mathematics Seminar” with following details. Date: November 6, 2015 Time: 14.00 – 15.00 Place: Ruang Study Hall Gedung CAS Lantai 5 (CAS Building, 5th floor, Study Hall) Title: Code base cryptology at the TU/e Abstract: The cluster of Discrete Mathematics and Computer Science of the

## 10~18 Nov 2014: SEAMS School

The South East Asian Mathematical Society initiates the SEAMS School of Mathematics as a series of intensive 7-day workshop. The purpose of this school is to provide opportunity for undergraduate as well as master students to have an advanced learning experience in mathematics, and to introduce a research-based learning. The Algebra Research Group ITB and

## 5 Sept 2014: Professor Claude Cibils from Universite de Montpellier

A talk by Professor Claude Cibils from Universite de Montpellier on “Algebra Seminar” with following details. Date: Sept 5, 2014 Time: 13.30 – 14.30 Place: Ruang Rapat Gedung Matematika Labtek III ITB (ITB, Labtek III Mathematics Building, Ruang Rapat) Title: Hopf Algebras and Hopf Categories Abstract : Barry Mitchell considered “rings with several objects” (Advances

## 3 Mar 2014: Dr. Yann Palu from Universite de Picardie

A talk by Dr. Yann Palu from Universite de Picardie, Amiens France in our monthly “Mathematics Seminar” with following details. Title: Cluster algebras and representation theory Date: Monday, March 3, 2014 Time: 15.00 -16.00 Place: Ruang Rapat Gedung Matematika Labtek III ITB (ITN, Labtek III Building, Ruang Rapat) Abstract : Cluster algebras were introduced by