exercise 3.3.34 from Karatza and Shreve
88226
Limit of a stochastic integral
41726
Musical and combinatorial proof
101454
Chebyshev Polynomials and Primality Testing
83115
A set of elements in a reduced unity ring
127330
Exercises on Galois Theory
29810
Derivation of a generalization of Mertens' Third Theorem.
75225
Exercise $ 3.4.15 $ of David Marker’s “Model Theory”.
137931
Problem from "The Theory of Finite Groups" by Kurzweil and Stellmacher
108550
Elements of $\mathbb Q(2^{1/3})$
16025
Havel & Hakimi degree sequence theory
110167
A conjecture with connection to the $abc$-conjecture
129157
An exercise on isomorphic groups of order 24
34712
Decomposable elements of $\Lambda^k(V)$
110799
Task interpretation for Hoffman Kunze Linear Algebra exercise 1 (b) sec. 3.6
69945
A PDE exercise from Gilbarg Trudinger. problem 2.2
65873
A proof for Atiyah-Macdonald Exercise I.21.iii
90475
Coordinate-free proof of $\operatorname{Tr}(AB)=\operatorname{Tr}(BA)$?