Daniel Fischer
Reputation
107,420
99/100 score
8 92 164
Impact
~392k people reached

# 107,420 Reputation

125 yesterday
 +55 14:39 5 events Statment concerning open sets and closures +25 05:09 2 events About inequality $\sum_{k=1}^n |a_k|^2 \lessgtr \sum_{k\neq s} |a_k| |a_s|$ +25 02:31 2 events Normal convergence: $\sum_{n = 1}^{\infty} \frac{x}{(1 + (n-1)x)(1 + nx)}$ +10 20:20 upvote Is the Cartesian product of two open sets open? +10 10:13 upvote problems with singularity $0$ of $\int_{W} \frac{e^{\frac{1}{z}}}{(z-3)^3} dz$.
155 2 days ago
 +55 13:38 5 events Computing $\int_{\partial S} \frac{1}{1+z^n} dz$ +45 13:55 4 events what will be the value of this integral +25 19:19 2 events Is a mapping a homeomorphism +10 14:53 upvote The family of analytic functions with positive real part is normal +10 12:56 upvote The set of all critical points of a smooth map is closed +10 06:53 upvote How many distinct values of floor(N/i) exists for i=1 to N.
115 May 20
 +35 20:40 3 events Bound on Lynden words made of $q$ letters +35 15:05 3 events Intersection of positive half-spaces +20 19:02 2 events Why is the Cauchy product of two convergent (but not absolutely) series either convergent or indeterminate (but does not converge to infinity)? +15 08:13 accept Eigenvector of a $C^n$ class matrix +10 08:11 upvote How can I find a number $n$ such that $(c + d \times n)$ is a multiple of $(a + n)$?
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