On Hadamard designs associated with a hyperoval

1995 ◽  
Vol 53 (1-2) ◽  
pp. 122-130 ◽  
Author(s):  
Antonio Maschietti
Keyword(s):  
Hadamard Designs

scholarly journals Certain Hadamard designs

1962 ◽  
Vol 13 (4) ◽  
pp. 524-524 ◽  
Author(s):  
P. Kasava Menon
Keyword(s):  
Hadamard Designs

scholarly journals Thep-Ranks of Skew Hadamard Designs

1996 ◽  
Vol 73 (1) ◽  
pp. 170-171 ◽  
Author(s):  
T.S. Michael
Keyword(s):  
Hadamard Designs

Some Hadamard designs with parameters (71,35,17)

2002 ◽  
Vol 10 (2) ◽  
pp. 144-149
Author(s):  
Dean Crnkovi? ◽  
Dieter Held
Keyword(s):  
Hadamard Designs

Hyperovals and Hadamard designs

1992 ◽  
Vol 44 (1-2) ◽  
pp. 107-116 ◽  
Author(s):  
Antonio Maschietti
Keyword(s):  
Hadamard Designs

New extremal Type II ℤ4-codes of length 32 obtained from Hadamard matrices

2019 ◽  
Vol 11 (05) ◽  
pp. 1950057
Author(s):  
Sara Ban ◽  
Dean Crnković ◽  
Matteo Mravić ◽  
Sanja Rukavina
Keyword(s):  
Incidence Matrix ◽  
Linear Codes ◽  
Minimum Weight ◽  
Hadamard Matrices ◽  
Binary Codes ◽  
Type Ii ◽  
Hadamard Design ◽  
Binary Linear Codes ◽  
Type Formula ◽  
Hadamard Designs

For every Hadamard design with parameters [Formula: see text]-[Formula: see text] having a skew-symmetric incidence matrix we give a construction of 54 Hadamard designs with parameters [Formula: see text]-[Formula: see text]. Moreover, for the case [Formula: see text] we construct doubly-even self-orthogonal binary linear codes from the corresponding Hadamard matrices of order 32. From these binary codes we construct five new extremal Type II [Formula: see text]-codes of length 32. The constructed codes are the first examples of extremal Type II [Formula: see text]-codes of length 32 and type [Formula: see text], [Formula: see text], whose residue codes have minimum weight 8. Further, correcting the results from the literature we construct 5147 extremal Type II [Formula: see text]-codes of length 32 and type [Formula: see text].

Certain Hadamard Designs

1962 ◽  
Vol 13 (4) ◽  
pp. 524 ◽  
Author(s):  
P. Kesava Menon
Keyword(s):  
Hadamard Designs

Hadamard designs

1970 ◽  
Vol 2 (1) ◽  
pp. 45-54 ◽  
Author(s):  
Jennifer Wallis
Keyword(s):  
Hadamard Design ◽  
Hadamard Designs

In this paper it is shown that an Hadamard design with each letter repeated once and only once can exist for 2, 4 and 8 letters only.L.D. Baumert and Marshall Hall, Jr have found a design with four letters each repeated three times. Their design and the design on four letters each repeated once, found by J. Williamson, is the totality previously published.

scholarly journals Hadamard designs

1972 ◽  
Vol 32 (1) ◽  
pp. 29-29 ◽  
Author(s):  
Edward Spence
Keyword(s):  
Hadamard Designs
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