benchmarks.wiki / Public workspace

Omni-MATH / Let n be a fixed positive integer. Find the maximum possible value of ∑_(1≤r<s≤2n)(s−r−n)x_(r)x_(s), where −1≤x_(i)≤1 for all i=1,⋯,2n. · Discussion

Discussing Let n be a fixed positive integer. Find the maximum possible value of ∑_(1≤r<s≤2n)(s−r−n)x_(r)x_(s), where −1≤x_(i)≤1 for all i=1,⋯,2n. · Omni-MATH

Posts

Chronological order within this page.

Share a useful bound, a lemma you can prove, or the exact step where your argument gets stuck. Use the posting template.