Hadamard Matrices and Their Applications :Hadamard Matrices and Their Applications

Publication subTitle :Hadamard Matrices and Their Applications

Author: Horadam K. J.;;;  

Publisher: Princeton University Press‎

Publication year: 2012

E-ISBN: 9781400842902

P-ISBN(Paperback): 9780691119212

Subject: O151.21 矩阵论

Keyword: 数学,数理科学和化学

Language: ENG

Access to resources Favorite

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Description

In Hadamard Matrices and Their Applications, K. J. Horadam provides the first unified account of cocyclic Hadamard matrices and their applications in signal and data processing. This original work is based on the development of an algebraic link between Hadamard matrices and the cohomology of finite groups that was discovered fifteen years ago. The book translates physical applications into terms a pure mathematician will appreciate, and theoretical structures into ones an applied mathematician, computer scientist, or communications engineer can adapt and use.

The first half of the book explains the state of our knowledge of Hadamard matrices and two important generalizations: matrices with group entries and multidimensional Hadamard arrays. It focuses on their applications in engineering and computer science, as signal transforms, spreading sequences, error-correcting codes, and cryptographic primitives.

The book's second half presents the new results in cocyclic Hadamard matrices and their applications. Full expression of this theory has been realized only recently, in the Five-fold Constellation. This identifies cocyclic generalized Hadamard matrices with particular "stars" in four other areas of mathematics and engineering: group cohomology, incidence structures, combinatorics, and signal correlation.

Pointing the way to possible new developments in a field ripe for further research, this book formulates and disc

Chapter

3.1 Spectroscopy: Walsh-Hadamard Transforms

3.2 Error Correction: Hadamard Codes

3.3 Signal Modulation and Separation: Hadamard Codes

3.4 Signal Correlation: Perfect Sequences and Arrays

3.5 Cryptography: Nonlinear Functions

Chapter 4 Generalised Hadamard Matrices

4.1 Butson Matrices

4.2 Complex Hadamard Matrices

4.3 Generalised Hadamard Matrices

4.4 Applications of Complex and Generalised Hadamard Matrices

4.5 Unification: Generalised Butson Hadamard Matrices and Transforms

Chapter 5 Higher Dimensional Hadamard Matrices

5.1 Classical Constructions

5.2 Equivalence Classes

5.3 Applications in Spectroscopy, Coding and Cryptography

5.4 The Second Link: Cocyclic Construction

PART 2: COCYCLIC HADAMARD MATRICES

Chapter 6 Cocycles and Cocyclic Hadamard Matrices

6.1 Cocycles and Group Cohomology

6.2 Cocycles are Everywhere!

6.3 Computation of Cocycles

6.4 Cocyclic Hadamard Matrices

6.5 The Cocyclic Hadamard Conjecture

Chapter 7 The Five-fold Constellation

7.1 Factor Pairs and Extensions

7.2 Orthogonality for Factor Pairs

7.3 All the Cocyclic Generalised Hadamard Matrices

7.4 The Five-fold Constellation

Chapter 8 Bundles and Shift Action

8.1 Bundles and the Five-fold Constellation

8.2 Bundles of Functions— The Splitting Case

8.3 Bundles of Cocycles— The Central Case

8.4 Shift Action — The Central Case

8.5 Shift Orbits — The Central Splitting Case

Chapter 9 The Future: Novel Constructions and Applications

9.1 New Applications of Cocycles

9.2 New Group Developed Generalised Hadamard Matrices

9.3 New Cocyclic Generalised Hadamard Matrices

9.4 New Hadamard Codes

9.5 New Highly Nonlinear Functions

Bibliography

Index

A

B

C

D

E

F

G

H

I

J

K

L

M

N

O

P

Q

R

S

T

W

Y

The users who browse this book also browse


No browse record.