4 papers
A Good Self-Teacher Meets the Student Where They Are: Joint On-Policy Learning and Teaching
Randy Ardywibowo, Arnav Dalal, Jiantao Jiao
Reinforcement Learning (RL) from outcome rewards suffers from sparse supervision, particularly on difficult, long-horizon tasks where successful trajectories are rare and costly to…
Geometric singularities of regular surfaces with nef anti-canonical divisors over imperfect fields
Chongning Wang, Lei Zhang
Let be a regular projective surface over a field of characteristic , with and nef. We prove that is geometrically integral over …
Irregular threefolds with numerically trivial canonical divisor
Jingshan Chen, Chongning Wang, Lei Zhang
In this paper, we classify irregular threefolds with numerically trivial canonical divisors in positive characteristic. For such a variety, if its Albanese dimension is not maximal…
On canonical bundle formula for fibrations of curves with arithmetic genus one
Jingshan Chen, Chongning Wang, Lei Zhang
In this paper, we develop canonical bundle formulas for fibrations of relative dimension one in characteristic . For such a fibration from a log pair , i…