User fcukier - MathOverflow most recent 30 from http://mathoverflow.net 2013-05-25T18:21:07Z http://mathoverflow.net/feeds/user/9463 http://www.creativecommons.org/licenses/by-nc/2.5/rdf http://mathoverflow.net/questions/88740/good-book-on-riemann-surfaces-and-galois-theory/110066#110066 Answer by fcukier for Good book on Riemann surfaces and Galois theory? fcukier 2012-10-19T04:21:40Z 2012-10-19T04:21:40Z <p>The first sections of the following two papers contain background material on covering spaces and Galois theory. </p> <p>Joe Harris Galois groups of enumerative problems Duke Math. J. Volume 46, Number 4 (1979), 685-724.</p> <p>William Fulton Hurwitz Schemes and Irreducibility of Moduli of Algebraic Curves. The Annals of Mathematics, Second Series, Vol. 90, No. 3 (Nov., 1969), pp. 542-575</p> http://mathoverflow.net/questions/31879/are-there-other-nice-math-books-close-to-the-style-of-tristan-needham/65744#65744 Answer by fcukier for Are there other nice math books close to the style of Tristan Needham? fcukier 2011-05-23T05:42:33Z 2011-05-23T05:42:33Z <p>Roger Godement, Analysis, vols. I to IV (Springer). Contains many interesting historical, heuristic and motivational comments. Includes several details on Bourbaki ("bande militante") in Vol. III. Great mathematical content, plus some provocative thoughts.</p> http://mathoverflow.net/questions/21024/what-is-the-exterior-derivative-intuitively/56008#56008 Answer by fcukier for What is the exterior derivative intuitively? fcukier 2011-02-19T19:36:30Z 2011-02-19T19:36:30Z <p>Another conceptually nice definition of the exterior derivative is given in Bourbaki (Varietes differentielles et analytiques, Fascicule de resultats), (8.3.4) and (8.3.5). The idea is the following: if w is an exterior p-form on X, consider it as a section w: X to Omega^p(X) of the bundle Omega^p(X) of p-forms. It makes sense to take its derivative dw at each point x in X. Then one sees that dw corresponds to a p+1 exterior form. </p> <p>By the way, a natural and simple definition of tangent vector on a smooth manifold is given in the same book in (5.5.1).</p> http://mathoverflow.net/questions/52458/comprehensive-and-self-contained-treatment-of-algebraic-geometry-using-functor-of/52480#52480 Answer by fcukier for Comprehensive and self-contained treatment of Algebraic Geometry using Functor of Points approach fcukier 2011-01-19T06:52:13Z 2011-01-19T06:52:13Z <p>One source for this point of view is the Introduction to EGA I, Springer Verlag edition (different from the IHES version). Another one is Mumford, lectures on curves on an algebraic surface. </p> http://mathoverflow.net/questions/44125/what-is-a-good-introductory-text-for-moduli-theory/46012#46012 Answer by fcukier for What is a good introductory text for moduli theory? fcukier 2010-11-14T03:57:21Z 2010-11-14T03:57:21Z <p>Another introduction to moduli: C. S. Seshadri, "Theory of Moduli", Proceedings of Symposia in Pure Mathematics, Vol. XXIX (Algebraic Geometry - Arcata 1974), pp. 263-304. American Mathematical Society.</p> http://mathoverflow.net/questions/716/formal-consequences-of-riemann-roch-multiple-answers-welcome/39695#39695 Answer by fcukier for Formal consequences of Riemann-Roch (multiple answers welcome) fcukier 2010-09-23T05:39:44Z 2010-09-23T05:39:44Z <p>To the sources given for RR in other answers, I would like to add Mumford's Complex Projective Varieties. He gives a nice proof, using the residue theorem plus basic linear algebra.</p> http://mathoverflow.net/questions/2147/most-helpful-math-resources-on-the-web/41207#41207 Comment by fcukier fcukier 2011-12-20T05:17:46Z 2011-12-20T05:17:46Z DML: Digital Mathematics Library <a href="http://www.mathematik.uni-bielefeld.de/~rehmann/DML/dml_links.html" rel="nofollow">mathematik.uni-bielefeld.de/~rehmann/DML/&hellip;</a> contains some (but not all) of these resources organized in a unified way. http://mathoverflow.net/questions/2147/most-helpful-math-resources-on-the-web/17436#17436 Comment by fcukier fcukier 2011-12-20T03:57:53Z 2011-12-20T03:57:53Z Hi Felipe ! Let me add a link to DML <a href="http://www.mathematik.uni-bielefeld.de/~rehmann/DML/dml_links.html" rel="nofollow">mathematik.uni-bielefeld.de/~rehmann/DML/&hellip;</a> This site contains links to Gottingen, Numdam, Jstor and some others.