On some Classical Varieties and Codes

Constacyclic Codes over Group Ring (Zq[v])/G

Recently, codes over some special finite rings especially chain rings have been studied. More recently, codes over finite non-chain rings have been also considered. Study on codes over such rings or rings in general is motivated by the existence of some special maps called Gray maps whose images give codes over fields. Quantum error-correcting (QEC) codes play a crucial role in protecting quantum ...

Classical Varieties , Codes

Codes from Flag Varieties over a Finite Field

We show how to construct error-correcting codes from flag varieties on a finite field Fq. We give some examples. For some codes, we give the parameters and give the weights and the number of codewords of minimal weight.

Characterizations of Hermitian varieties by intersection numbers

In this paper, we give characterizations of the classical generalized quadrangles H(3, q2) and H(4, q2), embedded in PG(3, q2) and PG(4, q2), respectively. The intersection numbers with lines and planes characterize H(3, q2), and H(4, q2) is characterized by its intersection numbers with planes and solids. This result is then extended to characterize all hermitian varieties in dimension at leas...

Impact of sea salt stress on growth and some physiological attributes of some soybean (Glycine Max L.) varieties.

The impact of three levels of sea salt (0.0, 8.0, and 16.0 mS/cm2) on six varieties of soybean (Crawford, G21, G22, G35, G82, and G83) was studied. Growth criteria, photosynthetic pigments, soluble sugars, soluble protein, free amino acids, free proline, and protein profile of soybean varieties were investigated under sea salt stress. Results of this study showed a considerable decrease in grow...