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Procrastination
Procrastination
It is always easier to procrastinate than to do what you need to do, but anxiety often grows in time. Sounds like you? You are not alone. As a victim of procrastination, here is one of my favorites from PHD Comics.
Image: Pile Higher and Deeper (PHD) Comics
Credit: Jorge Cham
My Erdős Number
My Erdős Number
The Erdős* number is the minimum number of degrees of separation between an author and Paul Erdős, by measuring the authorship of collaborative papers. For those who are not familiar with Paul Erdős, he is a renowned mathematician (1913-1996, photo on the left), born in Budapest, Austria-Hungary. He spent his life mostly by traveling with a suitcase from campus to campus, from seminar to seminar, from conference to conference, from a friend's house to another. Well known for "my brain is open" and collaborations with other mathematicians, he solved many open problems and published around 1,500 mathematical papers. His research outcomes contribute to combinatorics, graph theory, number theory, probability theory, and many other areas. Because of his prolific output, his friends created the Erdős number as a tribute.
I am not a mathematician. My Erdős Number is 6, which also validates the Six Degrees of Separation.
Wenjuan Sun >> Zhaolong Han >> Chunxiang Li >> Junping Shi >> Chi-Kwong Li >> LeRoy Beasley >> Paul Erdős
- Wenjuan Sun, Dai Zhou, Jiahuang Tu, Zhaolong Han. (2017) Vortex-induced vibrations of a square cylinder under linear shear flow. Fluid Dynamics Research, 49(2), 025502. DOI: 10.1088/1873-7005/49/2/025502.
- JiahuangTu, DaiZhou, Yan Bao, Congqi Fang, Kai Zhang, Chunxiang Li, Zhaolong Han. (2014) Flow-induced vibration on a circular cylinder in planar shear flow. Computers & Fluids, 105, 138-154.
- Chunxiang Li, Junping Shi, Jitao Sun. (2011) Stability of impulsive stochastic differential delay systems and its application to impulsive stochastic neural networks. Nonlinear Analysis: Theory, Methods & Applications, 74(10), 3099-3111.
- Christopher Hambric, Chi-Kwong Li, Diane Christine Pelejo, Junping Shi. (2019). Minimum number of non-zero-entries in a 7×7 stable matrix. Linear Algebra and its Applications, 572, 135-152.
- LeRoy Beasley, Chi-Kwong Li, Stephen Pierce (1992) Chapter 9: Miscellaneous preserver problems. Linear and Multilinear Algebra, 33(1-2), 109–119. DOI: 10.1080/03081089208818185
- LeRoy Beasley, J.L. Brenner, Paul Erdős, M. Szalay, A.G. Williamson. (1987) Generation of alternating groups by pairs of conjugates. Periodica Mathematica Hungarica, 18(4), 259-269.
Image: https://web.cs.elte.hu/erdos/
*Erdős is pronounced as something like 'Air-dosh' or 'Air-dish', or in between, in Hungarian.
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