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Top Questions
22
votes
What's the most fundamental definition of temperature?
thermodynamics
statistical-mechanics
temperature
definition
asked Jul 6, 2014 at 11:07
physics.stackexchange.com
21
votes
Verify matrix identity $A^tD-C^tB=I$ on certain hypotheses
linear-algebra
alternative-proof
asked Sep 6, 2014 at 16:43
math.stackexchange.com
10
votes
Why should field operators satisfy the classical equations of motion?
quantum-field-theory
asked Feb 9, 2016 at 15:18
physics.stackexchange.com
9
votes
Inequality of Positive-definite matrix.
linear-algebra
matrices
asked Aug 31, 2014 at 16:24
math.stackexchange.com
9
votes
How to prove $\exp(\ln M)=M$
linear-algebra
asked Sep 12, 2014 at 13:37
math.stackexchange.com
9
votes
Rank of transformation $Y=AX-XA$
linear-algebra
matrix-rank
asked Jul 7, 2014 at 10:51
math.stackexchange.com
7
votes
I still don't understand how a gas with an equation of state f(T,p,V)=0 can change if 2 state functions are fixed?
thermodynamics
equation-of-state
asked Jul 10, 2014 at 12:52
physics.stackexchange.com
7
votes
Locally flat coordinate and Locally inertial frame
general-relativity
differential-geometry
reference-frames
terminology
coordinate-systems
asked Jan 23, 2015 at 15:54
physics.stackexchange.com
6
votes
Pairwise commuting nilpotent matrices: alternative solution needed
linear-algebra
asked Jul 28, 2014 at 12:07
math.stackexchange.com
6
votes
How to calculate $\int\limits_{-\infty}^\infty\frac{e^{ix}}{x}dx$
calculus
complex-analysis
analysis
residue-calculus
cauchy-integral-formula
asked Oct 19, 2014 at 15:10
math.stackexchange.com
1
2
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Top Answers
15
Prove that $\det(M-I)=0$ if $\det(M)=1$ and $MM^T=I$
math.stackexchange.com
12
Upper bound for the rank of a nilpotent matrix , if $A^2 \ne 0$
math.stackexchange.com
8
A question about the proof of "a symmetric matrix has real eigenvalues".
math.stackexchange.com
7
What is wrong in this calculation $\int_{-\infty}^{\infty}\frac{\cos x}{1+x^2}dx$?
math.stackexchange.com
5
Triangle area from uniformly distributed points along a line
math.stackexchange.com
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