Abstract: Walsh-Hadamard transform (WHT) has many applications in digital signal processing including bioinformatics. While there are efficient algorithms for implementing this transform such as fast ...

Purchasing power refers to the amount of goods and services a person or entity can buy with a given amount of money. It fluctuates over time due to inflation, deflation and changes in income, directly ...

A nonzero rational number is called a cube sum if it is of the form a³ + b³ with a, a,bϵℚx. In this paper, we prove that for any odd integer k ≥ 1, there exist infinitely many cube-free odd integers n ...

The Mathematical Gazette is the original journal of the Mathematical Association and it is now over a century old. Its readership is a mixture of school teachers, college and university lecturers, ...

A recursive model in econometrics is a type of simultaneous equations model where the endogenous variables can be ordered in such a way that each variable is a function of only the variables that ...