New posts in Convex Geometry

What is this matrix/operator notation $\otimes$?

Is a broken (Euclidean) ball still convex?

Which convex shape requires the longest slice to break in half?

For $W=\cup_{U\in\mathcal U} U$ show that there exists $U_1,\dots,U_n: \ \sum_{i=1}^n \lambda(U_i) > \frac{1 - \epsilon}{3^d}\lambda(W)$

When do three closed balls have a nonempty intersection?

When does the center of a set of points lie in the convex hull?

Is a set "trapped" between two convex sets, convex?

How do I recover a convex region from the set of its tangent planes?

Find the maximum number of triangles that can have equal area

Image of $T:E \rightarrow \alpha E + (1-\alpha) E$ where $\alpha>1$.