Download Advances In Algebraic Geometry Codes by Edgar Martinez-Moro, Carlos Munuera, Diego Ruano PDF

By Edgar Martinez-Moro, Carlos Munuera, Diego Ruano

"Advances in Algebraic Geometry Codes" offers the main winning functions of algebraic geometry to the sphere of error-correcting codes, that are utilized in the while one sends info via a loud channel. The noise in a channel is the corruption of part of the data as a result of both interferences within the telecommunications or degradation of the information-storing aid (for example, compact disc). An error-correcting code therefore provides additional details to the message to be transmitted with the purpose of convalescing the despatched info. With contributions shape popular researchers, this pioneering ebook may be of price to mathematicians, desktop scientists, and engineers in details conception.

Show description

Read or Download Advances In Algebraic Geometry Codes PDF

Similar geometry and topology books

Text-book of geometry

GEOMETRY. --- DEFINITIONS. 1. If a block of wooden or stone be reduce within the sbape represented iu Fjg. 1, it's going to have six fiat faces. every one face of the block is termed a floor; and if those faces are made soft via sharpening, in order that, while a straight-edge is utilized to anyone of them, the instantly side in every little thing will contact the skin, the faces are known as aircraft surfaces, or planes.

Additional resources for Advances In Algebraic Geometry Codes

Example text

M. Duursma, Algebraic decoding using special divisors, IEEE Trans. Inform. Theory. 39(2), 694–698, (1993). I. M. Duursma, Majority coset decoding, IEEE Trans. Inform. Theory. 39 (3), 1067–1070, (1993). I. M. Duursma, Decoding codes from curves and cyclic codes. (Technische Universiteit Eindhoven, Eindhoven, 1993). Dissertation, Technische Universiteit Eindhoven, Eindhoven, 1993. I. M. Duursma and R. K¨ otter, Error-locating pairs for cyclic codes, IEEE Trans. Inform. Theory. 40(4), 1108–1121, (1994).

53. (Modified algorithm) In both key equations, the implications necessary for updating the key equation from a choice F to a choice F + P∞ hold when t ≤ (d∗ − 1)/2 + (dim L(E) − 1) − deg E/2, where (1) E = K − G + 2F + P∞ , or (2) E = G + 2F + P∞ − D. M. Duursma With the Riemann-Roch theorem, the defect is the same for E and for K − E, deg (E)/2 − (l(E) − 1) = deg (K − E)/2 − (l(K − E) − 1). A divisor is called special if both L(E) = 0 and L(K − E) = 0. Clifford’s theorem gives that the defect is nonnegative when E is a special divisor.

Let K = L be the canonical divisor class and let ∆ = O0 + O1 + O2 . The divisor classes K and 2∆ are invariant under the full automorphism group P SL(2, 7). The spaces L(m(L − ∆)) are spanned by monomials. For the Klein curve over F8 , the codes CL (m(L − ∆), D) are better than the one-point codes on the same curve, are closed under duality, and have interesting geometric properties. The space L(mP∞ ) is a subset of the affine ring R = ∪m≥0 L(mP∞ ) of rational functions with poles only at P∞ . The ring is a finitely generated F-algebra.

Download PDF sample

Rated 4.36 of 5 – based on 31 votes