127,943 reputation
9121250
bio website von-eitzen.de/math/tntrep.xml
location Bonn, Germany
age 49
visits member for 2 years, 5 months
seen 4 hours ago

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


2d
revised prove by mathematical induction
added 24 characters in body
Jan
22
revised Prove that there is at most one function that verifies
edited body
Jan
21
revised Demonstrate that $B$ is a base in the following linear space…
added 1 character in body
Jan
20
revised Proof the Fibonacci numbers are not a polynomial.
deleted 2 characters in body
Jan
20
revised Do minimum polynomials always have a nonzero discriminant?
added 175 characters in body
Jan
17
revised How to generate $2\times 2$ matrix with integer entries and both eigenvalues inside unit disk
added 2 characters in body
Jan
17
revised different prime factor
added 8 characters in body
Jan
14
revised Please help me - algebra
added 10 characters in body
Jan
13
revised Proof the Fibonacci numbers are not a polynomial.
added 10 characters in body
Jan
10
revised Cardinality of a set-NBHM 2005
added 14 characters in body
Jan
9
revised Check whether the set is connected or compact?
added 22 characters in body
Jan
7
revised A fair die is rolled $N > 6$ times. What is the probability the last 6 rolls were exactly $1,2,3,4,5,6$?
added 362 characters in body
Jan
7
revised Are there real-valued functions $f,g$ such that $|f(x)-f(y)|+|g(x)-g(y)|>1$ for $x\ne y$?
added 30 characters in body
Jan
6
revised Solution of $ f \circ f=f'$
added 24 characters in body
Jan
6
revised Solution of $ f \circ f=f'$
added 1097 characters in body
Jan
1
revised Solving an equation for two primes
added 489 characters in body
Dec
27
revised prove this theorem about linear map
added 89 characters in body
Dec
16
revised Solve $f\left(\frac{x-3}{x+1}\right)+f\left(\frac{x+3}{x+1}\right)=x$ $\forall x\neq -1$
added 6 characters in body
Dec
16
revised How to define a transition matrix mathematically?
added 290 characters in body
Dec
16
revised Why is $\varphi$ called “the most irrational number”?
added 3 characters in body