most recent 30 from http://mathoverflow.net 2013-05-22T20:02:59Z http://mathoverflow.net/feeds/user/8814 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mathoverflow.net/questions/37425/best-tablet-computer-for-mathematics A grad student 2010-09-01T20:57:30Z 2011-07-01T14:00:30Z

<p>I'm not sure if this is completely appropriate, but I thought I'd ask here.</p> <p>I'm in the market for a tablet computer. Unfortunately, my (mathematical) needs are very different from the needs of the sorts of people who usually review these things. Namely, I want the tablet that is best for preparing lecture notes and taking notes in seminars. It seems like most of the reviewers on "computer" websites are either looking for toys (like the iPad) or tools for creating art. I just want the most efficient way to create a multi-page handwritten pdf. Does anyone have any recommendations?</p>

http://mathoverflow.net/questions/36838/are-non-pl-manifolds-cw-complexes A grad student 2010-08-27T03:48:08Z 2010-08-27T04:04:25Z

<p>Can every topological (not necessarily smooth or PL) manifold be given the structure of a CW complex?</p> <p>I'm pretty sure that the answer is yes. However, I have not managed to find a reference for this.</p>

http://mathoverflow.net/questions/37425/best-tablet-computer-for-mathematics/37430#37430 A grad student 2010-09-01T21:44:02Z 2010-09-01T21:44:02Z

Yeah, I don't want to type (I can do that on a laptop). I want to write and draw figures with a pen. I also don't care about handwriting recognition.

http://mathoverflow.net/questions/36838/are-non-pl-manifolds-cw-complexes A grad student 2010-08-27T04:48:29Z 2010-08-27T04:48:29Z

@algori : I thought you had posted an (important sounding) comment? Why did you delete it?

http://mathoverflow.net/questions/36838/are-non-pl-manifolds-cw-complexes/36841#36841 A grad student 2010-08-27T04:27:33Z 2010-08-27T04:27:33Z

@Ryan : Yes, I think that is what Milnor proved (it's also been a long time since I looked at it).

http://mathoverflow.net/questions/36838/are-non-pl-manifolds-cw-complexes/36841#36841 A grad student 2010-08-27T04:08:09Z 2010-08-27T04:08:09Z

I think the fact that they have the homotopy type of a CW complex is due to Milnor (it is in his paper about spaces homotopy equivalent to CW complexes). Do Kirby-Siebenmann just prove this, or do they prove that all compact manifolds are homeomorphic to CW complexes? Also, how about the noncompact case?

http://mathoverflow.net/questions/36838/are-non-pl-manifolds-cw-complexes/36840#36840 A grad student 2010-08-27T03:56:48Z 2010-08-27T03:56:48Z

That manifold isn't 2nd countable. Like most mathematicians, I only care about manifolds that are Hausdorff and 2nd countable.