Download Algebraic Aspects of Digital Communications: Volume 24 NATO by T. Shaska, E. Hasimaj PDF

By T. Shaska, E. Hasimaj

Advancements of the previous couple of many years in electronic communications have created an in depth hyperlink among arithmetic and parts of computing device technology and electric engineering. A collaboration among such components now turns out very average, because of difficulties which require deep wisdom and services in every one quarter. Algebra and a few of its branches, similar to algebraic geometry, computational algebra, crew thought, etc., have performed a different position in such collaboration. accordingly, there are actually disciplines corresponding to coding concept and cryptography, that are thought of a mixture of arithmetic, computing device technology and electric engineering. Algebraic points of electronic Communications specializes in connections among algebra, algebraic geometry, quantity idea, graph thought and comparable components of arithmetic with coding thought and cryptography. This e-book is geared toward mathematicians, machine scientists and engineers who have to discover ties among algebra and coding idea and cryptography. IOS Press is a world technological know-how, technical and clinical writer of top of the range books for teachers, scientists, and pros in all fields. the various parts we submit in: -Biomedicine -Oncology -Artificial intelligence -Databases and knowledge structures -Maritime engineering -Nanotechnology -Geoengineering -All elements of physics -E-governance -E-commerce -The wisdom financial system -Urban reviews -Arms regulate -Understanding and responding to terrorism -Medical informatics -Computer Sciences

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Read Online or Download Algebraic Aspects of Digital Communications: Volume 24 NATO Science for Peace and Security Series - D: Information and Communication Security (Nato Science ... D: Information and Communication Security) PDF

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Extra info for Algebraic Aspects of Digital Communications: Volume 24 NATO Science for Peace and Security Series - D: Information and Communication Security (Nato Science ... D: Information and Communication Security)

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In this exposition, we have tried to recall needed notions and results so that any interested non-practitioner can read without consulting any texts on the side, we have fo- E. Previato / Vector Bundles in Error-Correcting for Geometric Goppa Codes 43 cused on giving an acquaintance with the two separate areas that we try to bring together, coding theory and algebraic geometry, and we have proposed several projects that in our view will make their partnership even tighter and more useful. Geometry, number theory and combinatorics were present in a startling way in much of the work on the mathematics of communications presented at this NATO ASI: it was a marvelous opportunity to connect techniques from different areas, encourage non-experts to look at classical questions, and share insight in sophisticated concepts.

Invariance under mr (r ∈ R∗ ) because C is a code. Invariance under dφ (φ ∈ Φ) because C is isotropic. Invariance under he,ue ,ve because C is self-dual. So it is obvious that the weight enumerators lie in the ring of invariant polynomials Inv(C(T )) of the associated Clifford-Weil group. In fact in many cases this invariant ring is spanned as a C-vector-space by the complete weight enumerators. 2]. 4). (N„ Rains, Sloane (1999-2006) [10]) If R is a direct product of matrix rings over chain rings, then Inv(C(T )) = cweC | C of Type T .

Sloane, Self-dual codes and invariant theory. Springer-Verlag (2006). [11] G. Nebe, Kneser-Hecke-operators in coding theory. Abh. Math. Sem. Univ. Hamburg 76 (2006) 79-90 [12] G. Nebe, Finite Weil-representations and associated Hecke-algebras. (preprint) [13] E. M. Rains and N. J. A. Sloane, Self-dual codes, in Handbook of Coding Theory, ed. V. S. Pless and W. C. Huffman, Elsevier, Amsterdam, 1998, pp. 177–294. [14] E. Rains, Shadow bounds for self-dual codes. IEEE Trans. Inform. Theory 44 (1998), no.

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