# My Erdős Number

My Erdős number is at most 5.
Paul Erdős was a prolific mathematician who co-authored 1,475 papers with 509 co-authors.
A biography of Erdős is appropriately called *The Man Who Loved Only
Numbers*.
As a
tribute to Erdős, mathematicians, scientists, and engineers who publish
papers keep track of their connection to Erdős by identifying their
Erdős number. Paul Erdős has Erdős number 0. His co-authors
have Erdős number 1, and, in turn, their co-authors (who are not
direct Erdős co-authors) have Erdős number 2, etc. This chain
of Erdős co-authors can be represented by a mathematical entity called
a graph. Using a graph to map connections to Erdős is mathematically poetic as
graph theory is one of the areas that Erdős heavily contributed to.

Below is chain of co-authors between me and Paul Erdős that I found using the old painful method of searching through lists of authors with Erdős number 3 and trying to find a connection to one of my co-authors. Now there is an online tool to find the distance between any two authors. Here is the calculation of my Erdős number, which is a different path than the one below (but the same number). You can use the tool to find your Erdős number if you have ever published a scholarly paper.

- 5: Kostas Pagiamtzis
- 4: P. Glenn Gulak
- 3: Thomas Kailath
- 2: Jorma Rissanen
- 1: László Gerencsér
- 0: Paul Erdős

Végre nem butulok tovább.

[Finally I am becoming stupider no more.]

–epitaph of Paul Erdős (self-written)