Pick d+1 many linearly independent linear combinations fj isn’t there at most d linearly independent linear combinations of ui?
maybe you meant pairwise linearly independent (by looking at the graph)
You are of course perfectly right. What I meant was: so that their convex hull is full-dimensional and contains the origin. I fixed it. Thanks for spotting this!
maybe you meant pairwise linearly independent (by looking at the graph)
You are of course perfectly right. What I meant was: so that their convex hull is full-dimensional and contains the origin. I fixed it. Thanks for spotting this!