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1d
reviewed Approve suggested edit on Integration problems
May
9
revised Determine the character of $\sum_{n=1}^{+\infty}{\frac{e^{i\theta n}}{n}}$
edited title
May
8
comment $a^2-b^2 = x$ where $a,b,x$ are natural numbers
@mixedmath I see, thanks a lot for the explanation.
May
8
awarded  Informed
May
7
comment What is a primary decomposition of the ideal $I = \langle xy, x - yz \rangle$?
Dear Alex, I edited the title of your question a little. Whenever possible, it is a good idea to have a very explicit title.
May
7
revised What is a primary decomposition of the ideal $I = \langle xy, x - yz \rangle$?
edited tags; edited title
May
7
comment Show $\zeta_p \notin \mathbb{Q}(\zeta_p + \zeta_p^{-1})$
@maliky0_o Sure, no problem :)
May
7
answered Show $\zeta_p \notin \mathbb{Q}(\zeta_p + \zeta_p^{-1})$
May
6
awarded  Caucus
May
1
reviewed Approve suggested edit on If a maximal ideal $\mathfrak m$ is flat, then $\dim_k (\mathfrak m/\mathfrak m^2) \leq 1$
Apr
28
comment Intersection of smooth projective plane curves
@GustavoMarra Dear Gustavo, I don't know if you receive any notifications after an answer is updated, but in any case, since you said in the above comment that you need the multiplicities of the points of intersection, at the suggestion of Georges Elencwajg I added the computations of the multiplicities to my previous answer.
Apr
28
comment Intersection of smooth projective plane curves
@GeorgesElencwajg Dear Georges, I have added the computation of the multiplicities as you suggested. I don't know if what I wrote is longer than what you had in mind, but with my knowledge it is the best I can do. At least I now have an Arturo Magidin style answer, maybe not in quality, but at least in length :)
Apr
28
revised Intersection of smooth projective plane curves
added 3546 characters in body
Apr
28
comment Book in which Calculus is explained in the form of a Teacher-Student Conversation
Well, if you like manga there's The Manga Guide to Calculus :)
Apr
27
comment Intersection of smooth projective plane curves
Dear Georges, thanks a lot for your comments. I will try to do that later today :)
Apr
27
revised Intersection of smooth projective plane curves
added 312 characters in body
Apr
27
answered Intersection of smooth projective plane curves
Apr
21
awarded  Nice Question
Apr
17
comment Looking for a very gentle first book on number theory
I second Brian's suggestion of Dudley's book. Also, she might enjoy reading something like Simon Singh's Fermat's Enigma, which although is not exactly a book on elementary number theory, it describes the story behind the solution to a famous problem in number theory. For me, before I was even interested in math, it made me want to try to learn what number theory was about.
Apr
16
awarded  Good Question