Phakhinkon Phunphayap

activity

20182023

collaborators

3 papers

math.NT2023

Directed graphs of integers with arcs determined by an arithmetic function

Phakhinkon Napp Phunphayap, Passawan Noppakaew, Prapanpong Pongsriiam

We introduce a new arc in directed graphs of integers. Among other things, we determine the positive integers that have arcs to all except a finite number of positive integers. We…

math.NT2019

Explicit Formulas for the p-adic Valuations of Fibonomial Coefficients II

Phakhinkon Phunphayap, Prapanpong Pongsriiam

In this article, we give explicit formulas for the $p$ -adic valuations of the Fibonomial coefficients $(n p ^{a} n)_{F}$ for all primes $p$ and positive integers $a$ and $n$ . Th…

math.CA2018

Reciprocal Sum of Palindromes

Phakhinkon Phunphayap, Prapanpong Pongsriiam

A positive integer $n$ is said to be a palindrome in base $b$ (or $b$ -adic palindrome) if the representation of $n = (a_{k} a_{k - 1} \dots a_{0})_{b}$ in base $b$ with $a_{k} \neq = 0$ has t…