Ittay Weiss

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I'm a lecturer of mathematics at the University of the South Pacific. My research interests are in algebraic topology and metric geometry.


542 Answers

newest activity votes
124
Is mathematics one big tautology?
61
Trying to define $\mathbb{R}^{0.5}$ topologically
57
Are all prime numbers finite?
49
Why don't we define “imaginary” numbers for every “impossibility”?
35
Is this number rational?
30
Results that came out of nowhere.
26
Point of discontinuity
24
What is mathematical research like?
21
Is 1+1 =2 a theorem?
20
What is the canonical definition of an open set?
18
Can you provide me historical examples of pure mathematics becoming “useful”?
18
Why do the reals need to be constructed? Do they somehow “span” the rationals, the roots, and the transcendentals like e and pi?
18
For any two sets $A,B$ , $|A|\leq|B|$ or $|B|\leq|A|$
18
If $|f(x)|$ is a differentiable function, then $f(x)$ is also?
17
What is category theory useful for?
16
What is a proof?
16
What are examples of unexpected algebraic numbers of high degree occured in some math problems?
14
Does every algebraically closed field contain the field of complex numbers?
14
Are $\mathbb{R}$ and $\mathbb{Q}$ the only nontrivial subfields of $\mathbb{R}$?
13
Why don't we study algebraic objects with more than two operations?
13
Prove that the additive group $ℚ$ is not isomorphic with the multiplicative group $ℚ^*$.
13
About mathematics and the physical world
13
Axiomatic characterization of the rational numbers
12
What does it mean for a set to exist?
10
Status of the classification of non-finitely generated abelian groups.
10
Making up for wasted high school years - where should I begin?
10
Properties of $\mathbf{Cat}$
10
Why was set theory inadequate as a foundation to the emerging new fields and why category theory isn't?
10
Are the Real numbers really Complete?
10
natural isomorphism in linear algebra
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