Exercise 36 Ch 1 in Stein's Real Analysis
38581
Construct a Borel set on R such that it intersect every open interval with non-zero non-"full" measure
52556
Isomorphism of $S^1$.
102485
Showing that a topological space is ${\rm T}_1$
57816
$(S^1 \times [0,1])/\sim$ homeomorphic to unit disk $ D^2$
112739
The derivative of a holomorphic function on the boundary of the unit circle
31522
Proving $f$ has at least one zero inside unit disk
60520
Upper bound for $|f(0)|$ based on its behavior within the unit disk.
16220
Folland, "Real Analysis", Chapter 5.3, Exercise 36.
152274
An exercise from Conway's Complex Analysis on an application of Schwarz's Lemma
79767
Properties of $x_k=\frac{a_{k+1}-a_{k}}{a_{k+1}}$ where $\{a_n\}$ is unbounded, strictly increasing sequence of positive reals
68255
Theorems in complex analysis.
15797
Holomorphic function having finitely many zeros in the open unit disc
45585
Proof of Steinitz Theorem
46852
Steinhaus theorem (sums version)
107435
Exercise from Atiyah-Macdonald, Chapter 1, 2.iv)
62484
Proving Hartshorne's Exercise I-1.9 by using exercise I-1.8
125840
Stein's lemma condition