13,586 reputation
11859
bio website go.helms-net.de
location Kassel, Germany
age 62
visits member for 4 years, 5 months
seen 7 hours ago

Mathematics is only a hobby - although I have done undergrad courses in the 70s. But part of my job was doing statistics and this kept me near my favourite subject "linear algebra" (programmed factor-analysis and a matrix-orientated calculator MatMate). Around 2002 I came in contact with the internet community in math newsgroups and could improve my Collatz discussion. Next subject was the Bernoulli numbers, then integer matrices and since 2006 the problem of iterated exponentiation aka tetration. Serving half-time jobs in teaching here at the university I found time to fiddle with that subjects in depth - and found love with the exploratory approach and impulse of the 18'th century numbertheory, namely L. Euler, "the master of us all"... Due to lack of formal education I've to do my "research" widely on my own - but that's what I just like: to find structure, pattern, laws from the ground.


2d
answered Collatz conjecture: Largest number in sequence with starting number n
Jan
27
answered “Orthogonal” Rectangular Matrix
Jan
20
answered Find all matrices where the matrix is its own inverse and the determinant is 1
Jan
14
answered Understanding infinity
Jan
11
answered Proof of Andrica when Assuming Oppermann
Jan
10
answered Why does $1+2+3+\dots = -\frac{1}{12}$?
Jan
9
answered How to find $ \binom {1}{k} + \binom {2}{k} + \binom{3}{k} + … + \binom{n}{k} $
Jan
8
asked Borel-/Laplace-transform and $\psi$-function
Jan
7
answered How can I show that $\lim_{n\to\infty} 2^n \left( \frac{n}{n+1} \right ) ^{n^2} = 0$?
Jan
6
answered $\sum_{n=0}^{\infty} \frac{1}{2n+1} = 0.66215 + \frac{1}{2}\log(\infty)^{3}$
Jan
2
answered My (divergent) summation of the zetas with sets of cofactors give systematically errors of simple integer differences. What am I missing?
Dec
30
asked Is there a systematic relation between the generating functions for the rows vs that for columns of infinite sized Carleman-matrices?
Dec
30
answered Why is it so difficult to obtain the spectral properties related to infinite matrices, especially when they are not symmetric?
Dec
28
answered My (divergent) summation of the zetas with sets of cofactors give systematically errors of simple integer differences. What am I missing?
Dec
17
answered If both $a,b>0$, then $a^ab^b \ge a^bb^a$
Dec
10
answered Application of Mergesort
Nov
19
answered How to find the integer solutions of $\frac{2^m-1}{2^{m+x}-3^x}=2a+1$?
Nov
10
asked My (divergent) summation of the zetas with sets of cofactors give systematically errors of simple integer differences. What am I missing?
Nov
6
answered How to factor this rational expression?
Oct
31
answered Periodocity of $a^{pn+q}$ mod $m$