On the Algebraic Structure Underlying the Support Enumerators of Linear Codes
Fuente:
arXiv
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| Autores principales: | , |
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| Formato: | Preprint |
| Publicado: |
2026
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| _version_ | 1866908761703055360 |
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| author | Kenjale, Nitin Garge, Anuradha S. |
| author_facet | Kenjale, Nitin Garge, Anuradha S. |
| contents | In this paper, we have introduced the concepts of support distribution and the support enumerator as refinements of the classical weight distribution and weight enumerator respectively, capturing coordinate level activity in linear block codes. More precisely, we have established formula for counting codewords in the linear code C whose i-th coordinate is nonzero. Moreover, we derived a MacWilliam's type identity, relating the normalized support enumerators of a linear code and its dual, explaining how coordinate information transforms under duality. Using this identity we deduce a condition for self duality based on the equality of support distributions. These results provide a more detailed understanding of code structure and complement classical weight based duality theory. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_08744 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | On the Algebraic Structure Underlying the Support Enumerators of Linear Codes Kenjale, Nitin Garge, Anuradha S. Information Theory 11T71, 94B05, 94B25 In this paper, we have introduced the concepts of support distribution and the support enumerator as refinements of the classical weight distribution and weight enumerator respectively, capturing coordinate level activity in linear block codes. More precisely, we have established formula for counting codewords in the linear code C whose i-th coordinate is nonzero. Moreover, we derived a MacWilliam's type identity, relating the normalized support enumerators of a linear code and its dual, explaining how coordinate information transforms under duality. Using this identity we deduce a condition for self duality based on the equality of support distributions. These results provide a more detailed understanding of code structure and complement classical weight based duality theory. |
| title | On the Algebraic Structure Underlying the Support Enumerators of Linear Codes |
| topic | Information Theory 11T71, 94B05, 94B25 |
| url | https://arxiv.org/abs/2601.08744 |