Leon Lampret

2,630 reputation

31325

bio	website
	location	Ljubljana, Slovenia
	age	25
visits	member for	2 years, 3 months
	seen	5 hours ago
stats	profile views	1,428

I'm currently studying (theoretical) mathematics. I'm very much interested in (algebraic & geometric) topology and (abstract) algebra, but discrete mathematics (graph theory) is also nice.

I'm not the biggest enthusiast of studying statistics, probability, numerical math, differential equations, physics or anything not pure enough.

$~$

$$\text{preferences: intuition, rigor, conciseness, completeness}$$

	2,630 reputation	bio	website		visits	member for	2 years, 3 months
31325 badges		location	Ljubljana, Slovenia		seen	5 hours ago

summary answers questions tags badges favorites bounties reputation activity

85 Questions

votes activity newest

191	How to study math to really understand it and have a healthy lifestyle with free time?
28	linear algebra over a division ring vs. over a field
11	$X$ and $Y$ are homotopy equivalent $\Leftrightarrow$ $\exists Z:$ $X,Y$ are strong deformation retracts of $Z$
11	concrete examples of tangent bundles of smooth manifolds for standard spaces
11	$f:\mathbb{S}^1\rightarrow\mathbb{S}^1$ odd $\Rightarrow$ $\mathrm{deg}(f)$ odd (Borsuk-Ulam theorem)

2,630 Reputation

+5	Is 2x (360°) rotated (orientable) Möbius band homeomorphic to $S^1\times[0,1]$?
+5	filtration on the (co)homology of a space from the filtration of a space
+10	Is there a quick proof as to why the vector space of $\mathbb{R}$ over $\mathbb{Q}$ is infinite-dimensional?
+5	Does the pseudoinverse of $A\in\mathbb{R}^{n\times n}$ commute with $A$ when $A$ is normal?

18 Answers

votes activity newest

39	Interesting implicit surfaces in $\mathbb{R}^3$
9	Results that were widely believed to be false but were later shown to be true
8	(Theoretical) Multivariable Calculus Textbooks
8	Why is the ring of matrices over a field simple?
8	if every commutator is idempotent, then the ring is commutative

64 Tags

19 abstract-algebra × 59	8 differential-topology × 16
14 linear-algebra × 5	8 homework × 6
9 commutative-algebra × 32	8 big-list × 2
9 ring-theory × 8	8 multivariable-calculus × 2
9 reference-request × 4	8 self-learning

9 Accounts

$Mathematics Stack Exchange$	Mathematics	2,630 rep	31325
$TeX - LaTeX Stack Exchange$	TeX - LaTeX	866 rep	611
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	Mathematica	138 rep	4
	English Language & Usage	123 rep	13