# Tagged Questions

Use for questions regarding duality of mathematical object, i.e. dual spaces, objects with two possible interpretations etc.

78 views

### When do two quasi-Banach spaces with identical dual spaces have equivalent norms?

Let $X$ and $Y$ be two quasi-Banach spaces such that the dual spaces satisfy $X^*=Y^*$. I want to know if there are some conditions that imply $X=Y$ (in the sense of equivalent norms).
337 views

646 views

### Infinite Linear Programming

I'm trying to prove optimality for a continuous linear program. That is, I have a linear program with an uncountable number of variables and constraints. I'm not sure how to demonstrate feasibility ...
131 views

### Is the biproduct of dualizable objects itself dualizable

In a monoidal category with biproducts, let $A$ and $B$ be objects with right duals. Then does $A \oplus B$ have a right dual? The question is a bit subtle. Suppose I already know that $A \oplus B$ ...
25 views

222 views

85 views

### Do copairings provide dualities in derived categories?

Here is an elementary fact about vector spaces. Let $V,W$ be vector spaces over a field $\mathbb K$ and let $c : \mathbb K \to V \otimes W$ be an element of the tensor product. Then $c$ determines ...
142 views

258 views