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Mathematics
Mark Fischler's user avatar
Mark Fischler's user avatar
Mark Fischler's user avatar
Mark Fischler
  • Member for 10 years, 4 months
  • Last seen more than a month ago
  • Aurora, IL
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About

I used to be a theoretical physicist, doing very early supergravity work as the first grad student of Peter vanNieuwenhuizen. I had a long career at the Fermi National Accelerator Laboratory, but have moved on to doing defense-related aeronautics work.

But mathematics has always been my strongest suit.

My Erdos number is 4.

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12
I feel mathematically inadequate for this site. What level are the majority of questions?
Nov 3, 2015
question
3
When MathJax works on MathOverflow but not Math Stack Exchange
Nov 3, 2015
answer
2
Mathematics new site theme is live
Sep 12, 2018
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50
Prove that $\sum_{n=1}^\infty \frac{n!}{n^n}$is irrational.
42
Formula for the simple sequence 1, 2, 2, 3, 3, 4, 4, 5, 5, ...
37
Turn off all lights in a ring-shaped palace
33
Find some digits of $17!$
33
If a coin toss is observed to come up as heads many times, does that affect the probability of the next toss?