On the Pseudocodeword Redundancy

Speaker: Dr Jens Zumbraegel

Time: 4:00PM
Date: Mon 8th February 2010

Location: Mathematical Sciences Seminar Room

We define the AWGNC, BSC, and max-fractional pseudocodeword redundancy of a code as the smallest number of rows in a parity-check matrix such that the corresponding minimum pseudoweight is equal to the minimum Hamming distance. We show that most codes do not have a finite pseudocodeword redundancy. We also provide bounds on the pseudocodeword redundancy for some families of codes, including codes based on designs.

Joint work with Mark F. Flanagan and Vitaly Skachek.

(This talk is part of the Algebra/Claude Shannon Institute series.)