4 papers
math.NT2026
On Sárközy-Sós Theorem related to representation functions
Jin-Hui Fang, Sándor Z. Kiss, Wei Niu +1
Let be the set of all nonnegative integers. For a nonempty set and integers , let be the number…
math.NT2026
The minimal width of universal -adic ReLU neural networks
Sándor Z. Kiss, Ambrus Pál
We determine the minimal width of -adic neural networks with the universal approximation property for continuous -valued functions on compact open subsets with resp…
math.NT2026
On the Diophantine Equation Involving Elementary Symmetric Polynomials and the Decomposition of Unity
Sándor Z. Kiss, Csaba Sándor, Maciej Zakarczemny
We consider the equality of the values of the th and th elementary symmetric polynomials of not necessarily distinct positive integers. For , we prove that this eq…
math.NT2025
Identical representation functions of linear forms
Sándor Kiss, Csaba Sándor
For a set of natural numbers , let be the number of representations of a natural number as the sum of two terms from . Many years ago, Nathanson studied the co…