Eighth International Workshop on

Optimal Codes and Related Topics

July 10 – 14, 2017

 

Organized by:

·         Institute of Mathematics and Informatics, Bulgarian Academy of Sciences

Organized as Minisymposium during Mathematics Days in Sofia 2017

 

Topics:

·         Optimal linear codes over finite fields and rings

·         Bounds for codes

·         Spherical codes and designs

·         Covering problems for linear and nonlinear codess

·         Optimization problems for nonlinear codes

·         Sets of points in finite geometries

·         Combinatorial configurations and codes

·         Optimality problems in cryptography

·         Graph theory and codes

·         Related topics

 

 


Organizing Committee:

·         Tsonka Baicheva (Veliko Tarnovo)

·         Peter Boyvalenkov, (Sofia, Co-Chairman)

·         Emil Kolev (Sofia)

·         Hristo Kostadinov (Sofia)

·         Silvia Boumova (Sofia)

·         Stela Zhelezova (Veliko Tarnovo)

·         Konstantin Delchev (Sofia)

 

Programme Committee:

·         Leonid Bassalygo (Moscow)

·         Pascale Charpin (Paris)

·         Marcus Greferath (Aalto)

·         Tor Helleseth (Bergen)

·         Ivan Landjev (Sofia)

·         Leo Storme (Ghent)

·         Wolfgang Willems (Magdeburg)

·         Victor Zinoviev, (Moscow)

 

SCIENTIFIC  PROGRAMME:

1.                Tsonka Baicheva, Miroslav Dimitrov, Cryptanalysis on short messages encrypted with M-138 cipher machine

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2.                Tsonka Baicheva, Svetlana Topalova, On the size of optimal strongly conflict-avoiding codes for 3, 4 and 5 active users

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3.                Valentin Bakoev, Fast Implementation of the ANF Transform

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4.                Leonid Bassalygo, Vladimir Lebedev, Victor Zinoviev, On m-specially resolvable BIB designs and q-ary constant weight codes

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5.                Galina Bogdanova, Galya Georgieva-Tsaneva, Todor Todorov, Provision of safety of interactive systems - problems and solutions

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6.                Nanami Bono, Tatsuya Maruta, Some new 4-dimensional linear codes

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7.                S. Boumova, V. Drensky, B. Kostadinov, A Diophantine Transport Problem from 2016 and its solutions by Elliot in 1903

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8.                Stefka Bouyuklieva, Iliya Bouyukliev, Dual transform through characteristic vectors

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9.                Iliya Bouyukliev, Maya Hristova, A method for construction of orthogonal arrays

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10.           Iliya Bouyukliev, Paskal Piperkov, On Walsh transform and matrix factorization

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11.           Peter Boyvalenkov, Peter Dragnev, D. Hardin,  Edward B. Saff and Maya Stoyanova, Universal Lower Bounds for the Energy of Spherical Codes

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12.           Peter Boyvalenkov, Peter Dragnev, D. Hardin,  Edward B. Saff and Maya Stoyanova, Universal lower bounds for the energy of spherical codes: lifting the Levenshtein framework

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13.           Rumen Daskalov, Elena Metodieva, On the construction of small (l,t)-blocking sets in PG(2,q)

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14.           Alexander Davydov, Stefano Marcugini, Fernanda Pambianco, Upper bounds on the smallest size of an almost complete cap in PG(N,q)

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15.           Alexander Davydov, Stefano Marcugini, Fernanda Pambianco, Further results on binary codes obtained by doubling construction

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16.           Mariya Dzhumalieva-Stoeva, Venelin Monev, An implementation of hash table for classiflcation of combinatorial objects

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17.           Maya Fujii, Tatsuya Maruta, Nonexistence of some Griesmer codes of dimension 4 over F8

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18.           Lisa Hernandez Lucas, Ivan Landjev, Leo Storme, Peter Vandendriessche, On the geometrical sunflower bound

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19.           Sven Müelich, Martin Bossert, Applying convolutional codes to key extraction using ring oscillator PUFs

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20.           Dmitry Osipov, Dmitry Titov, Sequential decoding on syndrome trellises for nonparametric detection

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21.           Sven Puchinger, Sven Müelich, Martin Bossert, On the success probability of decoding (partial) unit memory codes

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22.           Assia Rousseva, Upper and Lower Bounds on the size of t-fold Blocking sets

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23.           V.Rijmen, L.Kraleva, N.L.Manev, Correlation distribution analysis of a two round key-alternating block cipher

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24.           Michael Schelling, Martin Bossert, Code constructions based on Reed-Solomon codes

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25.           Zlatko Varbanov, Maya Hristova, New lower bounds for the number of ACG codes over F4

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26.           Nikolay Yankov, Damyan Anev, New self-dual [78, 39, 14] codes with an automorphism of order 13

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27.           Stela Zhelezova, A method for constructing splitting (v, u ´ c, l) BIBDs

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28.           Dmitrii Zinoviev, Victor Zinoviev, On the spherical code (4;r;9)

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