Tanbir Ahmed, Ph. D.

My collaboration distances

Knowing your collaborators is an intersting process to learn about their research interests and contributions as well as collaboration opportunities with them. A Collaboration Graph of mathematicians is a graph where vertices represent distinct mathematicians and two vertices are joined by an edge if the corresponding mathematicians jointly co-authored a paper together, possibly with other co-authors. The Collaboration distance between two vertices in a collaboration graph is the minimum number of edges connecting the two vertices. Two useful tools for finding collaboration distances are AMS MathSciNet Collaboration Distance tool and zbMATH Collaboration Distance tool. Perhaps, the most famous measure of collaboration distances is the Erdős numbers. One great source of data and facts on Erdős numbers is the Erdős Number Project. You may be interested to know your distances from Erdős as well as many of your other favorite mathematicians. I find it to be a nice recreational activity to study collaborations across scientific and mathematical communities.

@ distance 1

@ distance 2: You would find PÁL ERDŐS with whom a path is obtained through a research article with Arie BIALOSTOCKI; and a memoir for Hunter Snevily with Douglas Brent WEST. There are 372 co-co-authors and here is a listing of mathematicians with more than 150 papers or with an Erdős Number at most 1
AIGNER, MartinALON, Noga M.BABAI, LászlóBOLLOBÁS, BélaBorodin, Oleg VeniaminovichCAMERON, Peter JephsonCaro, YairChang, Gerard JennhwaCHEN, GuantaoChen, MinCHUNG, FanDAYKIN, David E.Edelsbrunner, HerbertERDŐS, PÁLFAUDREE, Ralph Jasper jun.FON-DER-FLAASS, Dmitriĭ GermanovichFUREDI, ZoltanGOULD, Ronald J.GRAHAM, Ronald LewisGYÁRFÁS, AndrásHarborth, HeikoHughes, Thomas J. R.JACOBSON, Michael ScottJiang, TaoKarp, Richard ManningKIERSTEAD, Henry A.KLEITMAN, Daniel J.KOSTOCHKA, Aleksandr Vasil’evichKrál’, DanielKUBICKA, Ewa M.KUBICKI, Grzegorz M.LEFMANN, HannoLEHEL, JenoLiu, YanpeiMacKee, Terry AllanMarek, V. WiktorMohar, BojanMULLIN, Ronald ClevelandNowakowski, Richard JosephPeleg, DavidPreparata, Franco P.Raspaud, AndréRautenbach, DieterREZNICK, BruceSAUER, Norbert W.SCHÖNHEIM, JohananSERESS, ÁkosSheikholeslami, Seyed MahmoudŠkrekovski, RisteSPENCER, Joel H.TOVEY, Craig A.TROTTER, William T. jun.TUZA, ZsoltWANG, JianfangWILSON, Richard MichaelXu, JunmingYang, YanYuster, RaphaelZhou, BoZhu, Xuding

@ distance 3: The collaborators of Erdős who are not at distances 1 and 2 are at a distance 3. Some distinguished Erdős-collaborators such as László LOVÁSZ and Endre SZEMERÉDI are at distance 3 also by my collaboration with Hunter Snevily.
- Knuth, Donald through Ahmed -> West -> Bender -> Knuth.
- Tao, Terrence through Ahmed -> Vin -> Losevich -> Tao.

@ distance 4: You would find Albert Einstein with whom a path is obtained through Ernst G. Straus who wrote a paper in relativity theory with Einstein in 1945 and a paper in Ramsey Theory with Erdős in 1973.
- Perelman, Grigory through Ahmed -> West -> Alon -> Gromov -> Perelman