Ka Hin Leung

According to our database, Ka Hin Leung authored at least 37 papers between 1991 and 2023.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of three.

2023

Nonexistence results of generalized bent functions from Z2n to Zm.

Ka Hin Leung, Shuxing Li, Songtao Mao

J. Comb. Theory, Ser. A, August, 2023

On the nonexistence of semi-regular relative difference sets.

Ka Hin Leung, Bernhard Schmidt, Tao Zhang

J. Comb. Theory, Ser. A, 2023

2022

Some nonexistence results for (<i>v</i>, <i>m</i>, <i>k</i>, <i>pq</i>)-strong external difference families.

Ka Hin Leung, Theo Fanuela Prabowo

J. Comb. Theory, Ser. A, 2022

2021

Nonexistence of strong external difference families in abelian groups of order being product of at most three primes.

Ka Hin Leung, Shuxing Li, Theo Fanuela Prabowo

J. Comb. Theory, Ser. A, 2021

A new family of Hadamard matrices of order 4(2q2+1).

Ka Hin Leung, Koji Momihara, Qing Xiang

Discret. Math., 2021

2020

No lattice tiling of Zn by Lee sphere of radius 2.

Ka Hin Leung, Yue Zhou

J. Comb. Theory, Ser. A, 2020

New constructions of Hadamard matrices.

Ka Hin Leung, Koji Momihara

J. Comb. Theory, Ser. A, 2020

New nonexistence results on (m, n)-generalized bent functions.

Ka Hin Leung, Qi Wang

Des. Codes Cryptogr., 2020

2019

Nonexistence results on generalized bent functions Zqm→Zq with odd <i>m</i> and <i>q</i> ≡ 2 ( mod 4).

Ka Hin Leung, Bernhard Schmidt

J. Comb. Theory, Ser. A, 2019

2018

Structure of group invariant weighing matrices of small weight.

Ka Hin Leung, Bernhard Schmidt

J. Comb. Theory, Ser. A, 2018

There is no lattice tiling of Zⁿ by Lee spheres of radius 2 for n≥3.

Ka Hin Leung, Yue Zhou

CoRR, 2018

2016

The anti-field-descent method.

Ka Hin Leung, Bernhard Schmidt

J. Comb. Theory, Ser. A, 2016

2014

A multiplier theorem.

Ka Hin Leung, Siu Lun Ma, Bernhard Schmidt

J. Comb. Theory, Ser. A, 2014

Proper circulant weighing matrices of weight $$p^2$$.

Ka Hin Leung, Siu Lun Ma

Des. Codes Cryptogr., 2014

2013

Binary Cyclic codes with two primitive nonzeros

Tao Feng, Ka Hin Leung, Qing Xiang

CoRR, 2013

2012

New restrictions on possible orders of circulant Hadamard matrices.

Ka Hin Leung, Bernhard Schmidt

Des. Codes Cryptogr., 2012

A note on cyclic codes over GR(p 2, m) of length p k.

Han Mao Kiah, Ka Hin Leung, San Ling

Des. Codes Cryptogr., 2012

2011

Finiteness of circulant weighing matrices of fixed weight.

Ka Hin Leung, Bernhard Schmidt

J. Comb. Theory, Ser. A, 2011

Erratum to "On the dimensions of the binary codes of a class of unitals" [Discrete Math. 309(2009) 570-575].

Ka Hin Leung, Qing Xiang

Discret. Math., 2011

2010

On Lander's conjecture for difference sets whose order is a power of 2 or 3.

Ka Hin Leung, Siu Lun Ma, Bernhard Schmidt

Des. Codes Cryptogr., 2010

2009

On the dimensions of the binary codes of a class of unitals.

Ka Hin Leung, Qing Xiang

Discret. Math., 2009

2008

Proper partial geometries with Singer groups and pseudogeometric partial difference sets.

Ka Hin Leung, Siu Lun Ma, Bernhard Schmidt

J. Comb. Theory, Ser. A, 2008

Cyclic codes over GR(p², m) of length p^k.

Han Mao Kiah, Ka Hin Leung, San Ling

Finite Fields Their Appl., 2008

2006

New Hadamard matrices of order 4<i>p</i>² obtained from Jacobi sums of order 16.

Ka Hin Leung, Siu Lun Ma, Bernhard Schmidt

J. Comb. Theory, Ser. A, 2006

Determination of all possible orders of weight 16 circulant weighing matrices.

K. T. Arasu, Ka Hin Leung, Siu Lun Ma, Ali Nabavi, Dwijendra K. Ray-Chaudhuri

Finite Fields Their Appl., 2006

Circulant weighing matrices of weight 2^2<i>t</i>.

K. T. Arasu, Ka Hin Leung, Siu Lun Ma, Ali Nabavi, Dwijendra K. Ray-Chaudhuri

Des. Codes Cryptogr., 2006

2005

The Field Descent Method.

Ka Hin Leung, Bernhard Schmidt

Des. Codes Cryptogr., 2005

2004

On Mathon's construction of maximal arcs in Desarguesian planes II.

Frank Fiedler, Ka Hin Leung, Qing Xiang

J. Comb. Theory, Ser. A, 2004

2002

New binary linear codes from algebraic curves.

Ka Hin Leung, San Ling, Chaoping Xing

IEEE Trans. Inf. Theory, 2002

Asymptotic Nonexistence of Difference Sets in Dihedral Groups.

Ka Hin Leung, Bernhard Schmidt

J. Comb. Theory, Ser. A, 2002

Constructions of Relative Difference Sets with Classical Parameters and Circulant Weighing Matrices.

Ka Hin Leung, Siu Lun Ma, Bernhard Schmidt

J. Comb. Theory, Ser. A, 2002

2001

A Trace Conjecture and Flag-Transitive Affine Planes.

Ronald D. Baker, Gary L. Ebert, Ka Hin Leung, Qing Xiang

J. Comb. Theory, Ser. A, 2001

Cyclic Relative Difference Sets with Classical Parameters.

K. T. Arasu, John F. Dillon, Ka Hin Leung, Siu Lun Ma

J. Comb. Theory, Ser. A, 2001

1999

Attack on RSA-Type Cryptosystems Based on Singular Cubic Curves over Z/nZ.

Seng Kiat Chua, Ka Hin Leung, San Ling

Theor. Comput. Sci., 1999

1996

A Construction of Partial Difference Sets in Z_p² × Z_p² × . × Z_p².

Ka Hin Leung, Siu Lun Ma

Des. Codes Cryptogr., 1996

1992

Abelian Divisible Difference Sets with Multiplier - 1.

Ka Hin Leung, Siu Lun Ma, Victor Tan

J. Comb. Theory, Ser. A, 1992

1991

Difference Sets in Dihedral Groups.

Ka Hin Leung, Siu Lun Ma, Yan Loi Wong

Des. Codes Cryptogr., 1991