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Jan
26
awarded  Famous Question
Jan
23
awarded  Good Answer
Dec
5
awarded  linear-algebra
Dec
4
answered What examples of the vector space axiom $u + 0 = u$ exist where the so-called “zero vector” is not an actual zero vector in $\mathbb{R}^n$?
Nov
14
awarded  Enlightened
Nov
14
awarded  Nice Answer
Oct
24
comment Understanding the definition of the support of a differential form on a manifold
Yes, it's the same.
Oct
24
answered Fixed Points are Closed
Oct
23
answered Is $\omega_0-1$ infinite?
Oct
11
comment Topology ad Geometry of $\mathbb{C}^n/\mathbb{Z}_k$
In a proper flat metric the angle around every point should be $2\pi$. Points where this isn't so are called "cone singularities".
Oct
11
revised Topology ad Geometry of $\mathbb{C}^n/\mathbb{Z}_k$
added 40 characters in body
Oct
11
answered Topology ad Geometry of $\mathbb{C}^n/\mathbb{Z}_k$
Oct
8
awarded  Notable Question
Oct
4
awarded  Nice Answer
Sep
17
answered Prove by Contradiction that the set of Positive Multiples of 11 is Infinite
Sep
13
comment Is $2^e$ in the field extension $\mathbb{Q}(e)$?
Maybe try taking logarithms and reduce the problem to logarithms being transcendental/irrational over $\mathbb{Q}$?
Sep
11
revised Riemann integrability of a function defined by an integral
deleted 3 characters in body
Sep
11
comment What can the principle of induction prove?
Many theorems in graph theory, by inducting on the number of vertices, or edges, or cycles, or...
Sep
11
comment What is the degree of $A(\theta)=\theta+\pi$?
Yes, this is the correct homotopy.
Sep
11
answered Riemann integrability of a function defined by an integral