Structure of ๐ฝ_qโ -linear ( , _ ) -cyclic codes
Computational and Applied Mathematics๏ผ2024๏ผ
Abstract
Let ๐ฝ_q be the finite field of order q=p^m where p is a prime, and m is a positive integer. This work introduces ๐ฝ_qโ -linear ( , _ ) -cyclic codes where โ=๐ฝ_q+u๐ฝ_q with u^2=u , i.e., ( , _ ) -cyclic codes over ๐ฝ_qโ . With the help of the decomposition method, we study the structural properties and determine the generator polynomials of ๐ฝ_qโ -linear ( , _ ) -cyclic codes. Further, we define the Gray map over ๐ฝ_qโ and find the Gray images of ๐ฝ_qโ -linear ( , _ ) -cyclic codes over ๐ฝ_q . Finally, with the help of our established results, we have constructed some new codes corresponding to ๐ฝ_qโ -linear ( , _ ) -cyclic codes.
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Key words
Finite field,Linear codes,Skew cyclic codes,Skew polynomial rings,-cyclic,Gray map,12Y05,16Z05,94B05,94B35,94B15
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