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Ivan's user avatar
Ivan
  • Member for 12 years, 4 months
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10 votes
1 answer
6k views

Non-uniqueness of solutions of the heat equation

7 votes
3 answers
418 views

Does the following statement imply convexity?

7 votes
1 answer
296 views

Approximating functions on the real line

6 votes
1 answer
3k views

Minimum and maximum eigenvalue

6 votes
1 answer
396 views

A problem concerning a divergent function on $[0, 1]$

6 votes
1 answer
309 views

Convergence of derived series

4 votes
1 answer
375 views

Series convergence if $\sum a_n^2 < \infty$

4 votes
1 answer
187 views

Functional inequalities involving the condition $\left(\int_0^t f(x)dx\right)^2 \ge \int_0^t f(x)^3dx$

3 votes
1 answer
421 views

Non-linear first order ODE

2 votes
1 answer
378 views

First order ODE and possible periodic solutions

2 votes
1 answer
176 views

Convex/concave points of a differentiable function

0 votes
1 answer
98 views

Demonstrating bound on integral