7 papers · 1 filter
Uniform Sampling of Linear Codes with Prescribed Hull Dimension
Keita Ishizuka
We give exactly uniform samplers for linear codes with prescribed hull dimension, for the Euclidean, Hermitian, and symplectic inner products and over finite fields of every charac…
Classification of binary, ternary and quaternary Hermitian LCD codes
Keita Ishizuka
We extend the complete classifications of linear complementary dual (LCD) codes from length 15 to length 19 in the binary case, from length 10 to length 15 in the ternary case and…
The Closure of LCD-to-GI Reductions via Generalized Inner Products
Keita Ishizuka
The Permutation Equivalence Problem (PEP) for linear complementary dual (LCD) codes reduces to Graph Isomorphism (GI) through the orthogonal projector onto the code, but this requi…
Caps and LCD Codes with Large Dimensions
Keita Ishizuka, Yuhi Kamio
We establish a connection between linear complementary dual (LCD) codes and caps in projective space. Using this framework and the structure theory of maximal binary caps, we deriv…
Construction of quaternary Hermitian LCD codes
Keita Ishizuka
We introduce a general construction of many Hermitian LCD codes from a given Hermitian LCD code. Furthermore, we present some results on punctured codes and short…
Construction for both self-dual codes and LCD codes
Keita Ishizuka, Ken Saito
From a given code , we give a method for constructing many codes such that the hull dimensions of and are identical. This method can be applied t…
On the existence of quaternary Hermitian LCD codes with Hermitian dual distance
Keita Ishizuka, Ken Saito
For and a positive integer , we show that if there exists no quaternary Hermitian linear complementary dual code with and Hermitian dual distan…