Conjecture on recognition by spectrum for finite classical groups
Let be one of the following nonabelian simple groups: with ; with and ; with , and ; with odd, , and ; or with and . Here denotes the set of element orders of a finite group , and is almost recognizable by spectrum when every finite group isospectral to is almost simple with socle isomorphic to .
Recognition conjecture for classical groups. Every finite group isospectral to is an almost simple group with socle isomorphic to .
This is a strengthened, explicit form of the earlier asymptotic almost-recognizability claim, with the listed low-rank and small-parameter exceptions. The supplied text does not state whether this precise formulation has been resolved.
References
Primary source
Nanying Yang, Mariya A. Grechkoseeva and Andrey V. Vasil'ev, “On the nilpotency of the solvable radical of a finite group isospectral to a simple group”, arXiv:1907.13479 (2019).
Progress summary
Nothing recorded yet. Refresh searches the literature and the public web for attempts on this problem, and writes the first summary here.
Solutions 0
No solutions have been posted yet.