The paper, entitled "Axisymmetric, Nonstationary Black Hole Magnetospheres: Revisited"[2] appeared in the Astrophysical Journal (ApJ).

[14] The topics of the lectures included quantum field theory, nuclear physics, astronomy, and topology.

He passed his candidacy exam in November 2014, by a presentation entitled "Gromov-Witten Invariants on Real Hypersurfaces of Kähler Manifold,[15]" and declared his intention to become a mathematician to the press.

[citation needed] During a press conference in 2005, after he was admitted to Inha University, he brought a machine that purifies air, and gave a demonstration of it.

The press and the Inha University officials reported that Song claimed it to be a machine that he invented himself, to thank the Korean citizens for their support.

In 2015, The Astrophysical Journal (ApJ) retracted Song's paper[title missing] due to a plagiarism issue.

Song & Park (2015) draws extensively from an earlier publication by Park, "Stationary Versus Nonstationary Force-Free Black Hole Magnetospheres," in Black Hole Astrophysics 2002: Proceedings of the Sixth APCTP Winter School (World Scientific Publishing Co., 2002).

In fact, the differences are modest, mostly confined to an alternate formulation of the analytic results, and could raise the question of copyright violation.

"This article by Yoo Geun Song & Seok Jae Park has been retracted at the request of the Editor-in-Chief due to an unacceptably large overlap with "Stationary Versus Nonstationary Force-Free Black Hole Magnetospheres," published in Black Hole Astrophysics 2002: Proceedings of the Sixth APCTP Winter School (World Scientific Publishing Co., 2002).

"Park first denied the plagiarism controversy towards Song, insisting he will "resign his position if any part of his paper is found unoriginal.

[20] UST policy allows 9 years for doctorate students so he was let out of the program in September 2018, and he filed for an injunction to stop this move in December 2018, at which time he enlisted in the Korean army.