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Elementary proof that $\mathbb{R}^n$ is not homeomorphic to $\mathbb{R}^m$

general-topology asked Mar 3, 2011 at 20:38

math.stackexchange.com

138 votes

Modular exponentiation by hand ($a^b\bmod c$)

elementary-number-theory modular-arithmetic exponentiation faq asked Nov 11, 2011 at 22:05

math.stackexchange.com

52 votes

Should your PhD students call you by your first name?

advisor etiquette personal-name asked Jun 19, 2013 at 0:30

academia.stackexchange.com

46 votes

Effective optimization strategies on modern C++ compilers

c++ optimization x86 asked May 28, 2010 at 21:04

stackoverflow.com

34 votes

closed-form expression for roots of a polynomial

polynomials galois-theory roots closed-form asked Feb 1, 2013 at 4:22

math.stackexchange.com

20 votes

Integral around unit sphere of inner product

linear-algebra asked Sep 6, 2011 at 17:46

math.stackexchange.com

18 votes

is there a way to generate a gdb-readable coredump when running programs compiled with MinGW?

c windows gdb mingw asked Apr 28, 2011 at 6:32

stackoverflow.com

16 votes

Why do unsigned "small" integers promote to signed int?

c standards asked Jun 14, 2019 at 19:44

stackoverflow.com

15 votes

efficiently determining if a polynomial has a root in the interval [0,T]

math numerical-methods polynomial-math asked Dec 22, 2010 at 0:50

stackoverflow.com

14 votes

how much differential structure can we put on countable manifolds?

algebraic-geometry differential-geometry rational-numbers asked Jun 29, 2015 at 18:56

math.stackexchange.com

Top Answers

221

PhD Student : Publish Paper with Wife?

academia.stackexchange.com

189

Construct a function which is continuous in $[1,5]$ but not differentiable at $2, 3, 4$

math.stackexchange.com

141

What is the maximum volume that can be contained by a sheet of paper?

math.stackexchange.com

107

Where is the flaw in this "proof" of the Collatz Conjecture?

math.stackexchange.com

Should I simply ignore it if authors assume that I'm male in their response to my review of their article?

academia.stackexchange.com

Is the sum of positive definite matrices still positive definite?

math.stackexchange.com

Reviewer wants me to do massive amount of work, the result would be a different article. Should I tell that to the editor?

academia.stackexchange.com

Intuition behind Matrix Multiplication

math.stackexchange.com

Professors/Teachers only replying to part of my email

academia.stackexchange.com

Is Calculus necessary for computer science student?

math.stackexchange.com

How to properly read the … operator in this context?

math.stackexchange.com

What percentage of PhD theses are rejected nowadays?

academia.stackexchange.com

Why is it not possible to generate an explicit formula for Newton's method?

math.stackexchange.com

How to compute the smallest eigenvalue using the power iteration algorithm?

math.stackexchange.com

Derivatives of eigenvalues

math.stackexchange.com

Why does valgrind say basic SDL program is leaking memory?

stackoverflow.com

Is every axiom in the definition of a vector space necessary?

math.stackexchange.com

How to find camera position and rotation from a 4x4 matrix?

math.stackexchange.com

Can a finite sum of square roots be an integer?

math.stackexchange.com

Striking applications of integration by parts

math.stackexchange.com

Can there be two distinct, continuous functions that are equal at all rationals?

math.stackexchange.com

Strictly diagonally dominant matrices are non singular

math.stackexchange.com

Eclipse vs. Visual Studio: What are the features in Eclipse that are not present in Visual Studio and vice versa?

stackoverflow.com

Is MD5 really that bad?

stackoverflow.com

How do I tell an executive that I am an engineer not an admin

workplace.stackexchange.com

Under which conditions can a person use the title of "Professor"?

academia.stackexchange.com

How to detect if an ellipse intersects(collides with) a circle

stackoverflow.com

Why are higher-degree polynomial equations more difficult to solve?

math.stackexchange.com

What is wrong with this integral reasoning?

math.stackexchange.com

How to convert vector to array

stackoverflow.com