Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A two-parameter family of complex Hadamard matrices of order 6 induced
  by hypocycloids   Constructions of Hadamard matrices from smaller blocks is a well-known
technique in the theory of real Hadamard matrices: tensoring Hadamard matrices
and the classical arrays of Williamson, Ito are all procedures involving
smaller order building blocks. We apply a new block-construction for order 6 to
obtain a previously unknown 2-dimensional family of complex Hadamard matrices.
Our results extend the families D_6(t) and B_6(t) found by various authors
recently. As a direct application the existence of a 2-parameter family of
MUB-triplets of order 6 is shown.

11
The categories of this paper are: hep-lat
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom
35
The categories of this paper are: mtrl-th
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
29
The categories of this paper are: funct-an