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visits member for 2 years, 5 months
seen Jul 9 at 14:20

Jul
6
asked Counterexamples for lcm-gcd identity and modular law for rings
Jul
2
asked Topological/homotopical classification for 1-dim CW-complexes?
Jun
24
asked Simplicity is invariant under extension of scalars
Jun
10
asked On existence of a tangent line passing through a given point
May
17
answered Polynomial that is surjective $\mod n$ for all $n$?
May
17
asked Why is the projection map proper?
May
16
asked Does Caratheodory's method work in Riesz-Markov representation theorem
May
16
asked Are maps locally preserving collinearity homographies?
Apr
18
asked Book suggestions on projective geometry
Apr
11
answered Is convex hull of a finite set of points in $\mathbb R^2$ closed?
Apr
11
answered Existence of a non-singular $n-2$ principle minor
Apr
7
asked In how many steps is it necessary to construct the Borel $\sigma$-algebra?
Apr
7
asked Function coincides with a function of bounded variation almost everywhere
Apr
6
answered On construction of a Hamel basis which is also a Bernstein set
Apr
6
asked Outer measure and Caratheodory's criterion
Apr
6
asked Is Cantor-Bendixson theorem right for a general second countable space?
Apr
6
asked On construction of a Hamel basis which is also a Bernstein set
Apr
6
asked The principal curvatures of a surface of revolution
Apr
6
asked Determining the measure (zero) from the measure (zero) of the intersections with translations
Mar
13
asked Connectivity and Euler characteristic for surfaces