About the “semi-classical” view of Prof. Weaver and Prof. Feferman [closed]

Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it’s on-topic for MathOverflow. Closed 6 years ago. Improve this question In the thread “Is platonism regarding arithmetic consistent with the multiverse view in set theory?“, Prof. Hamkins writes: The view you are suggesting is … Read more

Research topics in Curves and Surfaces [closed]

Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this post. Closed 5 years ago. Improve this question I advance that I’m not a mathematician but I’m an undergraduate student of mathematics. In … Read more

Interplay between Algebraic and Differential Geometry

Apologies to start with if this question is ‘too soft’ or not really research level. I’m a graduate student interested in both algebraic and differential geometry, although very much a novice with the former. I’m hoping that people on this forum can give me some interesting examples of problems active in research if there are … Read more

Question about the history of dyadic models in harmonic analysis

Who first used the expression “dyadic model” in the sense of this blog post by Terence Tao? Say you are a harmonic analyst trying to prove a result, e.g., something like the Carleson-Hunt Theorem, but it’s just too hard. So you consider instead a simplified dyadic model, for instance using Walsh series, you work out … Read more

Understand the publishing process time [closed]

Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it’s on-topic for MathOverflow. Closed 4 years ago. Improve this question Like a lot of beginner mathematicians (I guess), I’m worried about the publishing process time. In order to better understand that, I have a … Read more

Is there a simple algebraic setup to accomodate fibres and cofibres at the same time?

If I understand it correctly, there are two mutually dual “leading principles” in homotopy theory: never perform quotients, add structure instead; never require subobjects, take fibres instead. Although having encountered instances of both many times, I must confess that I understand the first one much better than the second one. I understand conceptual reasons behind … Read more

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 out. Within that article lies a section entitled “External Zappa–Szép products” which details how to take groups H and K (when the groups meet certain properties and when … Read more

Next step in studying arithmetic geometry

This relates to this post. I want to study arithmetic, such as Fermat’s last theorem, Faltings’ theorem, Mazur’s torsion points theorem, Weil conjecture and so on. For understanding these theorems (or other important arithmetic theorems), what theories should I study? I want to know some papers or texts. In the post, Emerton said that Mazur’s … Read more

Hassan Akbar-Zadeh’s mathematical legacy

Professor Hassan Akbar-Zadeh (Born: March 23, 1928- Iran), a prominent Iranian mathematician has died (March 23, 2020) in Paris after years of research and study. (I’m not sure of the exact dates.) He has worked with the French National Center for Scientific Research and the Collège de France for many years and was director of … Read more

Universal property for derived category of coherent sheaves

Let X be a scheme, and let D∗(X) be the unbounded (resp. unbounded, resp. bounded below/above, etc) derived category of coherent sheaves on X. The work of Robalo establishes a universal property for the motivic stable homotopy category of a scheme. My question is simple: is it reasonable to think that the more classical derived … Read more