# American Institute of Mathematical Sciences

August  2010, 4(3): 433-439. doi: 10.3934/amc.2010.4.433

## Classification of the extremal formally self-dual even codes of length 30

 1 Department of Algebra and Geometry, Veliko Tarnovo University, Bulgaria 2 Institute of Mathematics and Informatics, Bulgarian Academy of Sciences, P.O. Box 323, Veliko Tarnovo, Bulgaria

Received  March 2010 Revised  June 2010 Published  August 2010

It is known that there are extremal formally self-dual even codes which are not self-dual only for lengths 6, 10, 12, 14, 18, 20, 22, 28 and 30. We complete the classification of extremal formally self-dual even codes by examining the case for length 30.
Citation: Stefka Bouyuklieva, Iliya Bouyukliev. Classification of the extremal formally self-dual even codes of length 30. Advances in Mathematics of Communications, 2010, 4 (3) : 433-439. doi: 10.3934/amc.2010.4.433
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