Yibo Ji

activity

20222026

collaborators

3 papers

math.MG2026

An AI Generated Counterexample to Borsuk Problem in Dimension 63

Yibo Ji

We construct a 321 point set in R^63 that cannot be partitioned into 64 subsets of smaller diameter, proving b(63)>=65. Starting from the G_2(4) Euclidean representation and the Je…

math.AG2023

Bow varieties as symplectic reductions of $T^{*} (G / P)$

Yibo Ji

Cherkis bow varieties were introduced as ADHM type description of moduli space of instantons on the Taub-NUT space equivariant under a cyclic group action. They are also models of…

math.NT2022

Distributions of Matrices over $F_{q} [x]$

Yibo Ji

In this paper, we count the number of matrices $A = (A_{i, j}) \in O \subset M a t_{n \times n} (F_{q} [x])$ where $d e g (A_{i, j}) \leq k, 1 \leq i, j \leq n$ , $deg(\det A) =…

An AI Generated Counterexample to Borsuk Problem in Dimension 63

Bow varieties as symplectic reductions of T∗(G/P)

Distributions of Matrices over Fq​[x]

Bow varieties as symplectic reductions of $T^{*} (G / P)$

Distributions of Matrices over $F_{q} [x]$