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Questions tagged [reference-request]

This tag is for questions seeking external references (books, articles, etc.) about a particular subject. Please do not use this as the only tag for a question.

This tag is for questions seeking external references (books, articles, websites, etc.) about a particular subject. It is intended for use along with other, more "mathematical" tags. Please do not use this as the only tag for your questions. See this discussion on Meta.

20936 questions
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Sine-Gorldon_equation or Sine-Gordon?

Related to Breather $K=-1$ ; has the the Wiki Ref a spelling mistake?
Narasimham
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Reference for Machin's Formula

This is the formula by John Machin: \begin{equation} \frac{\pi}{4} = 4 \arctan \frac{1}{5} - \arctan \frac{1}{239} \end{equation} This topic fascinates me, and I would like to know something more. For example, I do not know how this formula…
Mark
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From which book these articles have been taken?

Can anyone tell me from which book these articles have been taken? It says "University Mathematics Handbook". However, on searching the internet I am not able to find this particular book. Please provide me the link to this book. Book
Soumee
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Using Analysis on Manifolds alongside Lee's Smooth Manifolds/Topological Manifolds

So right now I'm wondering if Munkres Analysis on Manifolds text is sufficient to get a proper foundation for manifolds or would it be better to just bruteforce through Lee's text on Smooth Manifolds? Most of the reviews on Munkres Analysis on…
Alexander King
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References for the fact that: SL(2,$\mathbb{R}$) is unimodular

I need some reference with a simple proof for the fact that: SL(2,$\mathbb{R}$) is unimodular. Thank you so much.
Skid Row
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Number Theory and Abstract Algebra

I am going to start studying abstract algebra soon. I haven't taken a course in number theory before. Since quite a lot of the examples/questions in textbooks on abstract algebra are derived from basic results in number theory, I'd like to review a…
Junaid Aftab
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Question about the book probabilistic methods, Noga Alon, Joel Spencer

$\textbf{Question}$: Does anybody know of someone who took the time to write down some or most of the solutions to this book (The probabilistic method by N. Alon, J.Spencer) in $\LaTeX$ ? If so, are they available to the public? Once I found a pdf…
sigma
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Typo in Introduction to Smooth Manifolds - Lee?

I believe I've found a typo in this text, but it's also possible that I'm not understanding the statement: The statement is about transversality. "Suppose $N,M,$ and $S$ are smooth manifolds and for each $s\in S$ we are given a map…
malxmusician212
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Mental Excercises

I just solved Einstein's fish riddle. I found it sufficiently entertaining. I was hoping to get recommendations to a site that offers questions that are just as challenging or more. You can also post such questions as answers here. (Such questions…
Tobi Alafin
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Reference-Request, Polynomials.

I am preparing for a mathematics aptitude test and one of the topics that is heavily tested is Polynomials. Last year the following problems were asked: 1.Consider the polynomial $ax^3+bx^2+cx+d$ where $a,b,c,d$ are integers such that $ad$ is odd…
Student
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Derivative of $u(x) = x^T x$

I would like a book that explains how to take the derivative of a function that maps vectors to vectors. Specifically, I would like a book that explains multi-variable differentiation, the multi-variable product rule, and the multi-variable…
NicNic8
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What is the meaning of "X choose Y"?

I'm sure this is a really simple question but I hear "X choose Y" in speech. What does this mean?
paullb
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Reference request for Prof. Wilhelm Blashke's DG book

Please suggest how can one get a copy of the book mentioned here: TA Guess_on_W Blashke Is there an English translation of Professor Blashke's book on Differential Geometry? (Einführung in die Differential Geometrie, Springer Verlag,…
Narasimham
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Material on Koszul complex

I have tried a lot of books to understand Koszul complex but eventually failed. I have tried Eisenbud's book, Weibel's homological algebra, but I just can not how to construct Koszul complex by tensor product and why this is equivalent to the…
user198206
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Locally nilpotent derivations on noncommutative rings

I am interested on LNDs on noncommutative rings, specially noncommutative polynomial rings. It is being hard to find via Google. Anyone know any reference?
Binai
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