Dear friends, colleagues and participants of ALCOMA 20, The new date for ALCOMA “20” is now March 26, 2022 until April 1st, 2022. We sincerely hope that this leaves enough time that we can meet each other again and have a valuable time in Kloster Banz. Michael Kiermaier, Sascha Kurz, Alfred Wassermann (Organizing committee)

Dear friends, colleagues and participants of ALCOMA 20, today, we - the organizers of ALCOMA 20 - regret to inform you that ALCOMA 20 has been cancelled due to Coronavirus/Covid-19. Unfortunately, the situation has dramatically worsened since our last message from March 5th, 2020. Many participants are facing travel restrictions imposed by their university or government. Moreover, today the Bavarian Ministry of Science ordered that classroom teaching at the University Bayreuth is to be discontinued until further notice.

Dear colleagues and participants of ALCOMA 20, like everybody else, we - the organizers of ALCOMA 20 - keep a close eye on current developments concerning Coronavirus/Covid-19. Information about the situation in Germany is provided by the Robert Koch Institute (RKI) the Federal Ministry of Health For the time being, neither of these organizations considers Germany as risk area. Therefore we decided to hold the ALCOMA 20 as planned.

Dear colleagues, this is the second announcement of ALCOMA 20 (international conference on algebraic combinatorics and applications). It will take place in Kloster Banz close to Lichtenfels and Bamberg, Germany, from March 29th to April 3th, 2020. The intention is to bring together representatives of research groups that work in particular in the following fields: Algebraic coding theory Design theory q-analogues Finite geometry Finite group actions Finite fields Association schemes Subspace codes Rank-metric codes Distance regular graphs Frame theory Combinatorial algorithms Applications: focussing on, but not limited to data transmission, cryptography (traditional, post-quantum, code-based), storage (nano-structures, distributed, DNA) network coding, private information retrieval, batch codes, locally recoverable codes, CPU cooling, CPU security.

Dear colleagues, this is the first official announcement of ALCOMA 20 (international conference on algebraic combinatorics and applications). It will take place in Kloster Banz close to Lichtenfels and Bamberg, Germany, from March 29th to April 4th, 2020. The intention is to bring together representatives of research groups that work in particular in the following fields: Design theory Algebraic coding theory q-analogues Finite geometry Finite group actions Finite fields Association schemes Subspace codes Rank-metric codes Distance regular graphs Frame theory Combinatorial algorithms Applications: focussing on, but not limited to data transmission, CPU cooling, CPU security, nano-structure storage, distributed storage, network coding, post-quantum cryptography, DNA-codes, private information retrieval, batch codes, locally recoverable codes.