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comment Upper bound on the number of convex connected components of the complement of the zero set of a polynomial
As far as I know, the conjecture is that the largest number of components (convex or not) in a complement of $\{f=0\}$ occurs attained when $f$ is a union of hyperplanes in general position. As I am no expert, and cannot recall a reference, I refrain from making this into an answer.
Dec
30
awarded  Enlightened
Dec
27
reviewed Close Is there a simpler axiomatization for the quantifiers?
Dec
27
reviewed Close Mersenne numbers and twin practical numbers
Nov
20
comment Is the Manickam-Miklós-Singhi Conjecture solved?
I downvote, and flag this post for moderator's attention as it is a speculation about the papers done behind a veil of anonymity. If you have a particular problem with the paper, it is OK to mention it, but this kind of non-mathematical talk is not constructive. Saying rumours "Yet I know..." without sources is especially damaging. Are you the editor, are you the referee? If so, stand behind your decisions, and reveal your identity and specific concerns about the paper. Otherwise, how do you know?
Nov
20
reviewed Close Inverse of Matrix with one element approches infinity
Nov
15
reviewed Reviewed Famous vacuously true statements
Nov
15
reviewed Leave Closed Can one expect the existence of a relevant approach for a proof of the Riemann hypothesis using Mochizuki's theory?
Nov
12
comment Show the upper bound of cardinality of $A$ is $C\sqrt{n\log{n}}$
@Nevergiveup Which math forum? Link?
Nov
12
awarded  Good Answer
Nov
9
reviewed Close How to prove twin prime conjecture or Goldbach conjecture if we assume prime distribution is completely random?
Nov
9
reviewed Close Polynomial $g:\mathbb R^n \rightarrow\mathbb R^n$ with no critical point may have no root
Nov
8
reviewed Close Examples of abstractions that did *not* turn out to be useful
Nov
7
comment What are some very important papers published in non-top journals?
Is it known if the simpler proof is (a part of) the reason for the less prestigious venue?
Nov
6
awarded  Nice Answer
Nov
6
reviewed No Action Needed Where to buy premium white chalk in the U.S., like they have at RIMS?
Nov
6
answered What are some very important papers published in non-top journals?
Nov
6
reviewed Leave Open The limit of the following product? What is the closed form of the value?
Nov
2
reviewed Close On variant of integer factorization
Nov
2
reviewed Leave Open $k$-th subset in order of increasing sum