133

Answers
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11
Is rigour just a ritual that most mathematicians wish to get rid of if they could?
21
Have we ever lost any mathematics?
1
Great mathematical figures and/or diagrams?
2
Real-world applications of mathematics, by arxiv subject area?
1
What makes four dimensions special?
3
Interesting conjectures “discovered” by computers and proved by humans?
1
Action of Isometries on a Line in the Plane
4
Vertex-transitive polytopes in any dimension with any number of vertices?
2
A “couple” of questions on Gauss’s mathematical diary
3
The missing Euler Idoneal numbers
6
Counterexamples in PDE
0
Which Fibonacci numbers are the sum of two squares?
3
Rolling-ball game
10
Most striking applications of category theory?
7
What is the “Physically Consistent” proper subset of arithmetic?
2
ask for the time complexity of a convex quadratically constrained quadratic program (QCQP) problem
6
Cops and drunken robbers
2
Generalizations of the Birkhoff-von Neumann Theorem
0
Reasons for the importance of planarity and colorability?
3
Probability that a number and its digit reversal are relatively prime
12
Most intricate and most beautiful structures in mathematics
5
William Rowan Hamilton and Algebra as Time
4
What is the current status of Agrawal’s conjecture?
11
Fundamental Examples (2)
4
How many orders of infinity are there?
3
When Have Numerology and Computational Experimentation Been Successful?
2
Mathematics and autodidactism
3
A Counterexample to the HIrsch Conjecture
1
Generalization of Hamiltonian cycles to “Hamiltonian spheres”
1
Does the Axiom of Choice (or any other “optional” set theory axiom) have real-world consequences?
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