This tag is for questions that are asking for online resources in mathematics (references, dictionaries, encyclopaedic collections, online tools, videos an lectures, etc), or asking about the mathematics behind tools and technology found on the internet.

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7
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0answers
743 views

Solution manual to Larson's “Problem Solving through Problems”

I am working through Larson's "Problem Solving through Problems" (http://math.la.asu.edu/~ifulman/mat194/problem-solving.pdf) but many of the problems have neither solutions nor sources included. Does ...
6
votes
0answers
303 views

Resource: Group Theory

There is a website providing recent thesis in finite geometry. Is there any website with collection of recent thesis on (finite) group theory. I want to see the Ph.D. thesis of Raymond T. Shepherd, ...
5
votes
0answers
44 views

Is there an online database somewhere that lists identities for algebraic structures with two binary operators?

I'm working on an abstract algebra library in Python, and I'm trying to include as many functions that analyze algebraic structures, returning true or false based on whether or not the algebra ...
4
votes
0answers
377 views

suggestion for video lectures on algebraic topology

can anyone suggest me any good video lecture series for algebraic topology other than N.J.Wildberger videos. If it is equivalent to Munkres topology (algebraic topology section) it should be great. ...
3
votes
0answers
55 views

Software for Braid Groups

I am looking for software/online tool that works on Braid Groups. I am aware that there are resources that allows you to draw braids by imputing generators or detect whether two braids are equivalent ...
3
votes
0answers
123 views

Why is there no collection about all mathematical theorems and open questions?

I really would like to have a giant math collection which is sorted according to the Mathematics Subject Classification, but with more then 3 levels, and it should contain all known theorems and also ...
3
votes
0answers
139 views

Online Model Theory Classes

Since "model theory" is kind of too general naming, I have encountered with lots of irrelevant results (like mathematical modelling etc.) when I searched for some videos on the special mathematical ...
2
votes
0answers
50 views

Find positive integer $x$, $y$, $z$ such that $2x^{2x}-1=y^{z+1}$

Find all positive integer $x$, $y$, $z$ such that $2x^{2x}-1=y^{z+1}$ I have tried to use LTE lemma but it didn't work. I think my problem is $z+1$. I can not control it. When I use LTE lemma, the ...
2
votes
0answers
35 views

Online publication of short essays

If I have some interesting insight on Twin prime Conjecture, which does not prove or disprove it, but is still worth sharing how do I go about it? It is not an in-depth research so I cant really ...
2
votes
0answers
22 views

A sheet of formulas for practical application of Integration?

does anyone know where I can find an organized formula sheet with formulas of the application of integration (triple and/or double integrals)? Like finding the center of mass of a solid and such. ...
2
votes
0answers
32 views

How to filter out non-mathematical results in online searching?

This similar question has been asked; yet I am still looking for an efficient way to filter out non-mathematical materials in an online searching. For example, is there any "mathematical" searching ...
2
votes
0answers
45 views

Diophantine equations which are easier to solve using $\mathbb{Z}[i]$ compared to $\mathbb{Z}$

I wanted to know applications of arithmetic in $\mathbb{Z}[i]$ that helps in some problems of $\mathbb{Z}$. I found a wonderful set of notes by Keith Conrad. Now I want to read more on a similar ...
2
votes
0answers
62 views

Instructive video content for High School kids?

I need some math Youtube channels (or any other visual media, movies maybe...) that I can recommend to High School students, not solely as a method of learning math but more to illustrate the beauty ...
2
votes
0answers
120 views

Exercises or courses to improve logical rigor and reasoning skills

There is plenty of math that is beautiful without needing much explanation of theory, such as fractals, geometric patterns and the Game of Life, that may interest beginners in mathematics. However, if ...
2
votes
0answers
62 views

Is there a source that explains or defines terms like Theorem, Proposition, Lemma and Corollary?

I will write the German names of the following English terms in brackets as it is important that I use the correct terms. This is a question about terms and I'm not completely sure if I've ...
2
votes
0answers
94 views

A Proof of Bruns' Theorem

I am looking for a proof of Bruns' Theorem. Theorem: The 10 classical integrals of the three-body problem are the only algebraically independent integrals of this 18-degree-of-freedom system.
2
votes
0answers
68 views

What is a good resource for functional derivatives and functional determinants?

What is a good resource for functional derivatives, functional determinants, etc.? What is the branch of mathematics dealing with those things? It is not in my functional analysis book. What is a ...
2
votes
0answers
187 views

Measures on function spaces

Assume I have a measurable space $(\Omega, \mathcal{F}, \mu)$, $\mu$ being a finite measure ($\mu(\Omega) < \infty$, if needed). Let $L = \{F:L^1(\Omega, \mu) \mapsto \mathbb{R}\}$ ($L$ is the set ...
2
votes
0answers
130 views

Resources for practicing Maths

There are a few posts on Resources for learning maths. But I am looking for practice questions preferably with solutions. Are there any you would recommend? Online or Books I am currently a Computer ...
1
vote
0answers
22 views

Calculus book for computer science students

I'm going to teach calculus I and II to undergraduate computer science students and I would like to know if someone here knows some book or site with easy calculus applications in computer science. ...
1
vote
0answers
36 views

Comprehensive easy to understand resource for learning matrix decompositions?

I am working on my thesis which is widely depended on knowledge about matrix decompositions. I have studied linear algebra with the help of YouTube videos, MITOpenCourseWare videos and Prof.Gilbert ...
1
vote
0answers
20 views

How to know one book whether has an English version?

I want to find the English translation of Vorlesungen über nicht-euklidische Geometrie written by Klein. Thanks.
1
vote
0answers
41 views

Where can I find these definitions in algebraic curves?

I'm trying to understand the definitions of trigonal curve, ramification points and linear systems. What is the best place to find it? I have as background just Fulton's algebraic curves. Thanks
1
vote
0answers
20 views

Composition of smooth functions is smooth

Is there any book / online resource where this proof is carried out in the context of Banach spaces and Frechet derivatives?
1
vote
0answers
39 views

Differentiation through the integral sign, more general case

I wondered in which cases, given a measurable space $(A,\mu)$, Banach spaces $E,F$, an open $U\subseteq E$ and $f:A\times U\rightarrow F$, we can conclude that the function $s\mapsto\int_A f(x,y)dx$ ...
1
vote
0answers
21 views

Looking for resources: Generalizations of martingales to $\mathbb R^2$

In most introductory courses, a martingale $Y$ is defined as a stochastic process $$Y: T \times \Omega \to S$$ ,which satisfies certain conditions. ($\Omega$ is a probability space and a filtration ...
1
vote
0answers
66 views

Where can I find the TOC of “Calculus and analytic geometry” by George B. Thomas 4th ed?

I am currently following the course Calculus Revisited, by Prof. Herbert Gross. In his lecture notes he makes references to the book mentioned in the title, by section number, so far I found a copy ...
1
vote
0answers
37 views

Are there online-platforms where to find people for joint learning and discussions?

After quite some time in academia I ended up in a nice company but the math to use is not really demanding. Hence I am still reading and working a bit on some university level math. It's roughly at a ...
1
vote
0answers
74 views

What are some good statistics resources?

A year ago, I took a statistics course at my university. The course was based on Rice's "Mathematical Statistics and Data Analysis". Apart from the fact that I did not find the book terribly good, I ...
1
vote
0answers
31 views

Online tools for plotting and deriving formulas from set of data?

I have a matrix of 20x3 decimal values. I would like to have them in a graph, with one plot for each of the three y values. I would also like approximated formulas for each of the three. Are there any ...
1
vote
0answers
55 views

Getting started with contact bundles

I'm currently reading William Burke's book Applied Differential Geometry and he uses a lot in the development of Lagrangian Mechanics the notion of a Contact Bundle. He does explain intuitively what ...
1
vote
0answers
20 views

More contemporary resource for Greenberg

Is there a more modern textbook than Greenberg's forms in many variables, or a set of notes, that summarizes the developments about $C_i$ fields? Is there such a thing as $C_i$ field where $i$ is not ...
1
vote
0answers
109 views

What is a good source of problem-solving type problems?

I am not looking for contest problems where there is a clever trick or a standard approach, I am looking for more creative and open-ended problems such as this , and I am not looking for questions ...
1
vote
0answers
49 views

Order of operations

Looking for a source that lists every possible proper order of operations. The reason for this is that I made a mistake with fractional exponents, I don't want to make this mistake again.
1
vote
0answers
202 views

Resources to learn more about universality?

I'm fascinated by what I think is called Universality in mathematics. What I mean by this is systems with simple rules displaying very complex behaviours in aggregate. Conway's game of life, Wolfram's ...
1
vote
0answers
20 views

Skein trees resource

Is there a resource where a collection of Skein trees for the Conway polynomials of knots have been presented? Thanks
1
vote
0answers
63 views

Regression with multiple line types from set of points

Given a set of points, I'm looking to find the best possible line (within reason) to fit to these points. These points won't be from real data, so they could form any sort of curve or line. So, I ...
1
vote
0answers
71 views

Is there a website dedicated to the application of Category Theory to different branches of Mathematics?

For example, if I wanted to know what the product/coproduct is in a certain category, I could find it on that site. I commonly come across websites (such as wikipedia) that give a few examples of ...
1
vote
0answers
2k views

IGCSE/GCSE mathematics worksheet and resources

I take mathematics for Cambdridge IGCSE students, Syllabus code 0580, http://www.cie.org.uk/docs/dynamic/41073.pdf , Please i want to know about resources available to revise the math topics, and if ...
1
vote
0answers
45 views

A resource to browse various function graphs?

I couldn't find what I need from google, so I figured it's time to ask here. Basically I'm looking for something like an online catalogue for all kinds of function graphs. I need a few specific ones ...
1
vote
0answers
73 views

Looking for specific resource on the classification of complex irreducible representations of metacyclic groups

My apologies in advance if this question is in any way out of place. I'm currently need of a classification of complex irreducible representations of metacyclic groups. My current reference ...
0
votes
0answers
22 views

Looking for resources on these topics from Linear Algebra

I am looking for Characteristic roots and characteristic vectors of a linear transformation or of a matrix, Algebraic and Geometric multiplicity of a characteristic value, Cayley-Hamilton theorem, ...
0
votes
0answers
35 views

Books for Real analysis similar to or having same essence like Charles Pinter Abstract algebra

I am looking for book which is similar to spirit of pinter's book mentioned in question that is which is suitable for self study and beginners. Can anyone recommend? Thanks
0
votes
0answers
17 views

Correlation between ordinal variables

I want to know the correlations between 3 groups of variables which are oridinal (rating of 1 to 10). I have followed the formula on wiki and computed the Kendall tau-b correlation coefficients ...
0
votes
0answers
67 views

Number of non-isomorphic groups of order $n$

$G$ is a group of order $n=p_1p_2....p_k$ then how to find the number of non-isomorphic groups of order $n$ where $p_i's$ are distinct primes I can find the number of number of non-isomorphic ...
0
votes
0answers
25 views

Video lecture on multivariate analysis?

Preferably covering the second half of Rudin's Principles of Mathematical Analysis. I've been looking for such a course within my university but couldn't find it. Does anyone know of any decent video ...
0
votes
0answers
27 views

Looking for Comprehensive Integration Techniques Tutorial

I am trying to improve my skills and I usually learn best by attempting problems just barely above my skill level then reading the solution. Does anyone know where I can find structured integration ...
0
votes
0answers
113 views

Free online mathematical tools to solve step by step problems

I am looking for online mathematical softwares which gives stepwise solution of problems.So far I have been able to find Symbolab but its useless unless the problem is very simple.
0
votes
0answers
12 views

Linear groups resources

I am interested on understanding the groups SO(2), SO(3) and together with Euclidean traslations (SE(2) and SE(3)). I find there are many resources on the internet but I need something which explains ...
0
votes
0answers
24 views

Resource for learning sequences and series.

By reading various questions and answers on this site, I realized I'm particularly weak at sequences and series, for example various tests for convergence tests, Cauchy sequences and so on. It's ...