
Let
We show that if a connected graph
Given a two-dimensional text
A connected graph
Let
A graph
We prove that if
We prove that the complete graph
In this paper, we present algorithms for locating the vertices in a tree of
The affine resolvable 2-(27,9,4) designs were classified by Lam and Tonchev [9, 10]. We use their construction of the designs to examine the ternary codes of the designs and show, using Magma [3], that each of the codes, apart from two, contains, amongst its constant weight-9 codewords, a copy of the ternary code of the affine geometry design of points and planes in
A perfect hash function for a subset
Perfect hash functions are useful for the compact storage and fast retrieval of frequently used objects. In this paper, we discuss some new practical algorithms for efficient construction of perfect hash functions, and we analyze their complexity and program size.
A Kuratowski-type approach for
We show that, for all primes
An algorithm is presented in which a polynomial deck,
Let
In this note, we give a partially positive answer to a conjecture of M. Kano. We prove the following results:
Let
Indeed, if
Nevertheless, we have shown that if
The Ramsey numbers
In a
We give a conjecture for the total chromatic number
We propose a number of problems about
1970-2025 CP (Manitoba, Canada) unless otherwise stated.