Erdős and Einstein Numbers


The Erdős number is the only bibliometric parameter mathematicians really care about, as shown in this cartoon. I could not observe that the same applies to physicists and the Einstein number.

An Erdős or Einstein number of 1 or 2 is surely a distinction; values in the range of [3...5] might be considered as an honor that came to a researcher by lucky coincidences in the 4D space-time continuum. It can also be seen as an exerted attempt to establish a connection between an ingenious world-class and a mediocre researcher :-) . Therefore, this entry is actually misplaced! Nevertheless, if you are interested in that remote aspect of a researcher’s life, see below…

Due to lucky coincidences my Erdős and Einstein numbers are 3 and 4 (obtained with MathSciNet collaboration distance calculator).

Here are two co-authorship chains connecting me to Paul Erdős:

H.-C. Hege coauthored with Peter Deuflhard ≥ 50 joint publications
Peter Deuflhard coauthored with Dietrich Braess MR1954560 (2004a:65169)
Dietrich Braess coauthored with Allan M. Pinkus MR1216487 (94d:41003)
Allan M. Pinkus coauthored with Paul Erdős MR0775969 (86m:41005)

or

H.-C. Hege coauthored with Hans P. Seidel ≥ 20 joint publications
Hans P. Seidel coauthored with Oleg V. Davydov MR2369510
Oleg V. Davydov coauthored with Allan M. Pinkus MR1451512 (98k:41042)
Allan M. Pinkus coauthored with Paul Erdős MR0775969 (86m:41005)

If one counts the project report [1], my Erdős number is 3:

H.-C. Hege coauthored with Günter M. Ziegler 2 joint publications
Günter M. Ziegler coauthored with László Pyber MR1373697 (97f:00003)
László Pyber coauthored with Paul Erdős MR1221596

And here is a chain of co-authorships connecting me to Albert Einstein:

H.-C. Hege coauthored with Hans P. Seidel ≥ 20 joint publications
Hans P. Seidel coauthored with Charles Micchelli MR1134724 (93b:41014)
Charles Micchelli coauthored with Alan J. Hoffman MR1422689 (97j:15017)
Alan J. Hoffman coauthored with Ernst G. Straus MR0080072 (18,185d)
Ernst G. Straus coauthored with Albert Einstein MR0012947 (7,87j)

If one counts the project report [1], my Einstein number is 4:

H.-C. Hege coauthored with Günter M. Ziegler 2 joint publications
Günter M. Ziegler coauthored with László Pyber MR1373697 (97f:00003)
László Pyber coauthored with Ernst G. Straus MR0363986
Ernst G. Straus coauthored with Albert Einstein MR0012947

[1] Konrad Polthier, John Sullivan, Günter M. Ziegler, Hans-Christian Hege: Visualization. In: Peter Deuflhard et al. (eds.) MATHEON – Mathematics for Key Technologies, European Mathematical Society, 2014, pp. 335-339.

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