Seventeenth International Workshop on

Algebraic and Combinatorial Coding Theory

ACCT 2020


October 11 - 17, 2020, BULGARIA


We apologize for any inconvenience caused and truly hope to see you in October's virtual ACCT.



NEW: Programme



é Institute of Mathematics and Informatics, Bulgarian Academy of Sciences, Bulgaria

é Skolkovo Institute of Science and Technology, Russia

é Institute for Information Transmission Problems, Russian Academy of Sciences, Russia


NEW: ACCT 2020 will be supported by IEEE under technical co-sponsorship.

Accepted papers will be submitted for inclusion into IEEE Xplore.





·       Linear codes

·       LDPC and polar codes

·       Self-dual codes

·       Algebraic-geometric codes

·       Fast decoding

·       New problems in coding theory

·       Covering problems

·       Combinatorial codes and designs

·       Coding theory problems of cryptography

·       Computer systems in coding theory

·       Network coding

·       Related topics







G. Kabatiansky (Moscow, Co-Chairman)
I. Landjev (Sofia, Co-Chairman)
I. Bouyukliev (V. Tarnovo)
S. Bouyuklieva (V. Tarnovo)
E. Krouk (Moscow)
F. Solov'eva (Novosibirsk)
S. Topalova (V. Tarnovo)
V. Zinoviev (Moscow)
M. Tsfasman (Paris)
S. Vladuts (Marseilles)
S. Bezzateev (St-Petersburg)

N. Polianskii (Munich)
I. Vorob’ev (Moscow)
V. Lebedev (Moscow)
E. Egorova (Moscow)
N. Manev (Sofia)
H. Kostadinov (Sofia)
S. Boumova (Sofia)
T. Alexandrova (Sofia)
S. Zhelezova (V. Tarnovo)
D. Danev (Linköping)

L. Bassalygo (Moscow, Co-Chairman)
P. Boyvalenkov (Sofia, Co-Chairman)
Ts. Baicheva (V. Tarnovo)
A. Frolov (Moscow)
E. Kolev (Sofia)
S. Kruglik (Moscow)
M. Stoyanova (Sofia)
V. Zyablov (Moscow)
T. Alexandrova (Sofia)
S. Zhelezova (V. Tarnovo)






Sunday, October 11 – Saturday, October 17, 2020

Sunday, October 12 – Saturday, October 17, 2020



REGISTRATION FEE: for on-line participation is EURO 60.




SUBMISSIONS: Authors are invited to submit full version papers in IEEE style (at most six pages) by e-mail to (Peter Boyvalenkov). Each paper will be reviewed by 2 or 3 experts (members of Organizing Committee will join the review process; additional reviewers will be involved). Incomplete papers (like announcements of results) will not be accepted. An acceptance rate of 50-55% is expected. Conference proceedings will be submitted to IEEE Xplore® digital library which is indexed by SCOPUS.






Submission deadline:

Decision notification: 


July 15, 2020

September 5, 2020

October 10, 2020



T. Alexandrova, P. Boyvalenkov, A. Sali, New bounds on Armstrong codes

N. Aydin, Th. Guidotti, P. Liu, New Linear Codes as Quasi-Twisted Codes from Long Constacyclic Codes

N. Aydin, B. Yildiz, S. Uludag, A Class of Weak Keys for the QC-MDPC Cryptosystem

G. Georgieva-Tsaneva, G. Bogdanova, Investigation of the dependence of the evaluation parameters in protection of cardio data on the applied wavelet basis

Yu. Borissov, M. Markov, Computing the number of points on elliptic curves belonging to one popular family

S. Boumova, T. Ramaj, M. Stoyanova, On Covering Radius of Orthogonal Arrays

S. Bouyuklieva, I. Bouyukliev, On the Formally Self-Dual Binary [30,15,8] Codes

I. Bouyukliev, M. Pashinska, A Parallel Algorithm for Computing the Weight Spectrum of Binary Linear Codes

S. Bouyuklieva, R. Russeva, Binary LCD Codes Having an Automorphism of Odd Prime Order

P. Boyvalenkov, K. Delchev, D. Zinoviev, V. Zinoviev, On two-weight (linear and nonlinear) codes

C. J. Colbourn, Popularity Block Labelling for Steiner Systems

R. Daskalov, E. Metodieva, Three new large (n, r)-arcs in PG(2,31)

R. Daskalov, E. Metodieva, New QC codes over GF(11)

C. Deppe, V. Lebedev, G. Maringer, How to apply the rubber method for channels with feedback

T. Honold, I. Landjev, M. Kiermaier, New upper bounds on the maximal size of an arc in a projective Hjelmslev plane

J. Jeliazkov, H. Kostadinov, B. Tsvetkov, Research Incentivization based on Smart Contract Platform

J. Jeliazkov, H. Kostadinov, B. Tsvetkov, Managing complex business software with the help of Distributed Ledger Technologies

A. Kasparian, Riemann-Roch Theorem and Mac Williams identities for an additive code with respect to a lattice

D. Kawabata, T. Maruta, A conjecture on optimal ternary linear codes

H. Al Kim, S. Puchinger, A. Wachter-Zeh, Bounds and Code Constructions for Partially Defect Memory Cells

G. Kramer, W. Li, V. Sidorenko, On Interleaved Rank Metric Codes

J. Kunz, J. Renner, G. Maringer, T. Schamberger, A. Wachter-Zeh, On Software Implementation of Gabidulin Decoders

A. Rousseva, I. Landjev, Codes related to caps and the non-existence of some Griesmer codes

A. Lebedev, Search for a Moving Element

T. Maruta, K. Nomura, Optimal Linear Codes Over the Field of Order 7

I. Mogilnykh, F. Solov’eva, Single orbit affine generators for BCH codes with designed distance three

O. Prakash, A. Singh, R. K. Verma, Quantum codes from skew constacyclic codes over the ring R

S. Topalova, S. ZhelezovaSome parallelisms of PG(3,5) involving a definite type of spread

A. Torres-Martin, M. Villanueva, Systematic encoding and permutation decoding for Z2 s-linear codes

A. Urivskiy, On Identity-Based-Like Non-Interactive Key Establishment for Key Predistribution Schemes

N. Yankov, On the self-dual codes having an automorphism of type 11-(8,0)













ACCT2020 was originally scheduled for June 9-15.

It was postponed due to the coronavirus pandemic. We apologize for any inconvenience caused and truly hope to see you in October' ACCT.