Ka Hin Leung

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Person:165903

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zbMath Open leung.ka-hinMaRDI QIDQ165903

List of research outcomes

PublicationDate of PublicationType
Nonexistence results of generalized bent functions from \(\mathbb{Z}_2^n\) to \(\mathbb{Z}_m\)2023-06-26Paper
On the nonexistence of semi-regular relative difference sets2022-10-14Paper
Some nonexistence results for \((v,m,k,pq)\)-strong external difference families2022-01-20Paper
Unique sums and differences in finite abelian groups2022-01-05Paper
Nonexistence of strong external difference families in abelian groups of order being product of at most three primes2021-02-02Paper
A new family of Hadamard matrices of order \(4 (2 q^2+1)\)2021-01-21Paper
New nonexistence results on \((m, n)\)-generalized bent functions2020-03-27Paper
New constructions of Hadamard matrices2020-02-21Paper
Upper bounds for cyclotomic numbers2020-02-20Paper
Nonexistence results on generalized bent functions \(\mathbb{Z}_q^m \rightarrow \mathbb{Z}_q\) with odd \(m\) and \(q \equiv 2\pmod 4\)2019-01-25Paper
Structure of group invariant weighing matrices of small weight2017-11-09Paper
The anti-field-descent method2015-12-28Paper
Hadamard difference sets related to Lander's conjecture2014-07-25Paper
Proper circulant weighing matrices of weight \(p^2\)2014-07-03Paper
A multiplier theorem2014-03-14Paper
Binary cyclic codes with two primitive nonzeros2014-03-05Paper
New restrictions on possible orders of circulant Hadamard matrices2012-05-22Paper
A note on cyclic codes over \(\mathrm{GR}(p^{2},m)\) of length \(p^{k}\)2012-03-01Paper
Erratum to ``On the dimensions of the binary codes of a class of unitals2011-10-21Paper
Finiteness of circulant weighing matrices of fixed weight2011-04-11Paper
On Lander's conjecture for difference sets whose order is a power of 2 or 32010-06-21Paper
On the dimensions of the binary codes of a class of unitals2009-04-08Paper
Determination of all possible orders of weight 16 circulant weighing matrices2009-02-09Paper
Cyclic codes over \(\text{GR}(p^2,m)\) of length \(p^k\)2008-08-27Paper
Proper partial geometries with Singer groups and pseudogeometric partial difference sets2008-02-04Paper
Circulant weighing matrices of weight \(2^{2t}\)2006-11-22Paper
New Hadamard matrices of order \(4p^{2}\) obtained from Jacobi sums of order 162006-08-04Paper
The field descent method2005-08-18Paper
On Mathon's construction of maximal arcs in Desarguesian planes. II2004-10-14Paper
Nonexistence of abelian difference sets: Lander’s conjecture for prime power orders2004-08-13Paper
On Mathon’s construction of maximal arcs in Desarguesian planes2003-12-03Paper
A generalization of an addition theorem of Kneser.2003-04-02Paper
On the groups of units of finite commutative chain rings.2003-04-02Paper
Constructions of relative difference sets with classical parameters and circulant weighing matri\-ces2003-03-26Paper
New partial difference sets in \(\mathbb{Z}_{p^2}^t\) and a related problem about Galois rings2002-12-17Paper
Asymptotic nonexistence of difference sets in dihedral groups2002-09-12Paper
New binary linear codes from algebraic curves2002-08-04Paper
A trace conjecture and flag-transitive affine planes2002-05-23Paper
Cyclic relative difference sets with classical parameters2001-10-29Paper
Constructions of semi-regular relative difference sets2001-09-11Paper
Planar functions from \(\mathbb{Z}_n\) to \(\mathbb{Z}_n\)2000-11-20Paper
Forms and Baer ordered *-fields2000-09-19Paper
Attack on RSA-type cryptosystems based on singular cubic curves over \(\mathbb{Z}/n\mathbb{Z}\)2000-08-23Paper
The rank of a latin square associated to an abelian group2000-03-23Paper
On vanishing sums of roots of unity.2000-01-01Paper
The real spectrum of a noncommutative ring1999-04-07Paper
On Schur rings over cyclic groups1999-01-21Paper
Almost perfect sequences with \(\theta =2\)1998-07-13Paper
Vanishing sums of \(m\)th roots of unity in finite fields1998-04-26Paper
ON QUOTIENTS OF BRAID GROUPS1998-03-09Paper
On commutative Noetherian rings which satisfy the radical formula1998-02-02Paper
A construction of partial difference sets in \(\mathbb{Z}_{p^ 2}\times \mathbb{Z}_{p^ 2}\times\cdots\times \mathbb{Z}_{p^ 2}\)1997-05-28Paper
On Schur rings over cyclic groups. II1997-04-14Paper
On the Cyclotomic Polynomial $Phi\{pq} (X)$1997-03-31Paper
Row versus column operations1996-12-12Paper
Partial Difference Sets with Paley Parameters1996-06-05Paper
Weakly *-ordered *-fields1995-07-03Paper
Finite quotients of the automorphism group of a free group1995-04-11Paper
Weak \(*\)-orderings on \(*\)-fields1994-11-29Paper
Strong approximation property for Baer orderings on \(*\)-fields1994-11-29Paper
https://portal.mardi4nfdi.de/entity/Q42957051994-11-29Paper
Partial difference triples1994-05-30Paper
Difference sets in dihedral groups1992-06-28Paper
Abelian divisible difference sets with multiplier \(-1\)1992-06-28Paper
On a generalization of Albert's theorem1992-06-25Paper
The structure of Schur rings over cyclic groups1992-06-25Paper
A construction of an ordered division ring with a rank one valuation1991-01-01Paper
Constructions of Partial Difference Sets and Relative Difference Sets on p -Groups1990-01-01Paper
Positive Semidefinite Forms Over Ordered Skew Fields1989-01-01Paper
https://portal.mardi4nfdi.de/entity/Q47352951989-01-01Paper
Bounds for Integral Solutions of Diagonal Cubic Equations1983-01-01Paper

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