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| bio | website | soc.if.usp.br/~maedhros |
|---|---|---|
| location | Brazil | |
| age | ||
| visits | member for | 1 year, 5 months |
| seen | May 13 at 11:33 | |
| stats | profile views | 143 |
I'm a undergraduate student at University of São Paulo. My favorites subjects are set-theoretical topology, logic, set theory and application to mathematical-physics.
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Nov 26 |
accepted | What does means the $\frown$ in sequence notation? |
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Nov 26 |
revised |
What does means the $\frown$ in sequence notation? edited body |
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Nov 26 |
asked | What does means the $\frown$ in sequence notation? |
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Oct 6 |
comment |
Directional Derivatives of $\sqrt{|xy|}$ @Mykolas, for instance let $u = (1/ \sqrt{2}, 1/ \sqrt{2}) and $f(x,y) = frac{x^2 y}{x^2 + y^2}$ if $(x,y)\neq (0,0)$ and $f(0,0) = 0$ at the origin. |
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Oct 6 |
comment |
Directional Derivatives of $\sqrt{|xy|}$ @Mykolas, that is not always true |
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Aug 16 |
answered | What is the set operation corresponds to the last Venn diagram below? |
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Jul 4 |
comment |
Your favourite application of the Baire category theorem @CameronBuie the article is: The Baire category theorem implies the principle of dependent choices, Bull. Acad. Polon. Sci. Sér. Sci. Math. Astronom. Phys., v. 25 n. 10 (1977), pp. 933–934, by Charles Blair. But it's quite hard to find it. See more reference about it here math.stackexchange.com/questions/146910/… |
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Jul 3 |
comment |
Your favourite application of the Baire category theorem Blair's article is unique. Short and concise. This piece of mathematical work is very special for me because was the first article that I read. |
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Jun 8 |
awarded | Constituent |
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Jun 8 |
awarded | Caucus |
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May 30 |
comment |
Standard model of ZFC and existence of model of ZFC You should improve your question by linking or giving the definitions of terms that aren't wide know. That'll help clarifyng the reading for those who will answer your question and for people who may use your question to get rid of their doubts. |
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May 2 |
revised |
A characterization of open sets Improving the text |
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May 2 |
suggested | suggested edit on A characterization of open sets |
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Apr 28 |
accepted | Rank of the commutator of linear transformations. |
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Apr 28 |
revised |
Teaching Yourself Analysis added 208 characters in body |
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Apr 28 |
answered | Teaching Yourself Analysis |
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Apr 19 |
revised |
Preparatory Course of A Career in Dynamical Systems added 1 characters in body |
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Apr 19 |
comment |
Rank of the commutator of linear transformations. @ZevChonoles It's all. Thanks. |
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Apr 19 |
awarded | Citizen Patrol |
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Apr 19 |
revised |
Rank of the commutator of linear transformations. deleted 1118 characters in body |
