Contents
Preface
XI
Contributors xiii
Conference Participants
XIX
Tools for coset weight enumerators of some codes
PASCALE CHARPIN
1
Algebraic decoding of cyclic codes: A polynomial ideal
point of view
XUEMIN CHEN,
I.
S. REED, T. HELLESETH, AND T. K. TRUONG
15
Polynomial factorisation, graphs, designs and codes
STEPHEN
D.
COHEN
23
Character sums as orthogonal eigenfunctions of adjacency operators for Cayley
graphs
RONALD EVANS
33
Combinatorial cryptosystems galore!
MICHAEL FELLOWS AND NEAL KOBLITZ
51
A family of cryptosystems based on combinatorial properties of finite geome-
tries
RAUL FIGUEROA, PABLO M. SALZBERG, AND PETER JAU-SHYONG
SHIUE
63
Global construction of general exceptional covers
MICHAEL
D.
FRIE!)
69
Berlekamp's and Niederreiter's polynomial factorization algorithms
SHUHONG GAO AND JOACHIM VON ZUR GATHEN
101
Hasse-Teichmiiller derivatives and products of linear recurring sequences
RAINER GOTTFERT AND HARALD NIEDERREITER
117
Factors of period polynomials for finite fields, II
S. GURAK
127
A characterization of some ternary codes meeting the Griesmer bound
N OBORU HAMADA AND TOR HELLESETH
139
vii
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