113,969 reputation
7105211
bio website von-eitzen.de/math/tntrep.xml
location Bonn, Germany
age 48
visits member for 2 years, 1 month
seen 2 hours ago

I did study math and had a knack for it, but I am sooo out of that business now ...


11h
answered Homeomorphism between plane with different topologies
11h
answered Intersections in polygons
12h
answered Prove that $\sqrt[4]{1+y^4} \leq 1+|y|$
14h
answered If p is an odd prme and (t,p) = 1, then t^2 is not a primitive root (modp).
14h
answered Limits and roots
19h
answered Area of square created by intersection of segments from a square vertexes to their opposite sides
19h
answered Will uniform continuity of $g$ imply the uniform continuity of $f$?
19h
answered If every subspace of V is T-invariant, prove that T is a multiple of the identity map.
20h
answered If some function f is in big O(some function g), do f and g necessarily need to have the same domain and codomain?
23h
answered Prove that $e^x \ge$ its Maclaurin polynomial with n terms
1d
answered One parent is a cystic fibrosis carrier, and the other has no cystic fibrosis gene
1d
answered Image of Homomorphisms for Cyclic Groups
1d
answered example of two continuous real-valued functions whose product is 0
1d
answered number of pairs of integers whose sum is even
1d
answered Show that g*c and c*g are homotopic, where g is a loop and c a constant loop
1d
answered Soundness of a simple tree edge count proof by induction
1d
answered Can a dense set contain isolated points?
2d
answered How to evaluate $\lim_{x \to 0} ( \ln(1 - \sin x) + x)/x^2$ without using l'Hôpital?
2d
answered Two hundred balls into one hundred boxes
2d
answered Drawing a Right Triangle With Legs Not Parallel to x/y Axes?