## Involve: A Journal of Mathematics

• Involve
• Volume 9, Number 3 (2016), 411-414.

### On weak lattice point visibility

#### Abstract

We say that a point $Q$ in a specific rectangular array of lattice points is weakly visible from a lattice point $P$ not in the array if no point in the array other than $Q$ lies on the line connecting the external point $P$ to $Q$. A necessary and sufficient condition for determining if a point in the array is weakly viewable by the external point, as well as the number of points that are weakly visible from the external point, is determined.

#### Article information

Source
Involve, Volume 9, Number 3 (2016), 411-414.

Dates
Revised: 20 March 2015
Accepted: 5 April 2015
First available in Project Euclid: 22 November 2017

https://projecteuclid.org/euclid.involve/1511371021

Digital Object Identifier
doi:10.2140/involve.2016.9.411

Mathematical Reviews number (MathSciNet)
MR3509334

Zentralblatt MATH identifier
1381.11056

Subjects

Keywords
weak visibility lattice point

#### Citation

Nicholson, Neil R.; Rachan, Rebecca. On weak lattice point visibility. Involve 9 (2016), no. 3, 411--414. doi:10.2140/involve.2016.9.411. https://projecteuclid.org/euclid.involve/1511371021

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