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Questions that are about research in mathematics, or about the job of a research mathematician, without being mathematical problems or statements in the strictest sense. Do not use this tag for easy or supposedly easy mathematical questions.

22 votes

How about a statement without proof?

Speaking for myself, I place such a statement in one of two states: I have use of this statement now, or I will file that statement away for future reconsideration. In the latter, it is perpetually …
John McVey's user avatar
  • 1,068
0 votes
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214 views

Stories where a different definition lead to an inaccurate conclusion/a misunderstanding/etc

The overall question: What are some good examples where a different understanding of terminology or notation caused you to misinterpret a result in a way that was inaccurate? The intent here is of co …
4 votes
0 answers
267 views

Has the external knit product been used to construct a previously unknown group?

In the Wikipedia article Zappa–Szép product , the knit product (a.k.a. Zappa–Szép product, Zappa–Rédei-Szép product, general product, exact factorization) is defined, and its basic properties are laid …