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Mathematicing's questions - Chinese 1answer
558 questions.
Questions
Answers
Signum function and Fourier transform
1
answers,
0
favourites,
975
views
pde
fourier-analysis
fourier-series
row operation proof for elementary matrix
1
answers,
0
favourites,
22
views
linear-algebra
proof-explanation
matrix-decomposition
Right inverse implies at least a solution to AX=b and left inverse implies at most a solution to AX=b
1
answers,
0
favourites,
23
views
linear-algebra
matrices
proof-verification
proof-writing
proof-explanation
product of vector and matrix is a linear combination of row vectors from A
0
answers,
0
favourites,
22
views
linear-algebra
matrices
linear-transformations
proof-explanation
matrix-equations
If $a^{m}=b^{m}$ and $a^{n}=b^{n}$, show that a=b [duplicate]
3
3
answers,
2
favourites,
719
views
abstract-algebra
ring-theory
Geometric and algebraic intepretation of a probability function in quantum mechanics
1
0
answers,
0
favourites,
23
views
real-analysis
Proving that trivial solution implies column sum to 1 via contrapositivity
1
0
answers,
1
favourites,
13
views
linear-algebra
proof-verification
proof-writing
linear-transformations
proof-explanation
Column vectors being linearly dependent IFF there exists a column having no pivot
1
answers,
0
favourites,
28
views
calculus
linear-algebra
proof-verification
proof-explanation
matrix-calculus
Need help with evaluating a difficult integral
2
2
answers,
1
favourites,
149
views
integration
definite-integrals
divergence of the cross product of two vectors proof
3
2
answers,
1
favourites,
9.134
views
multivariable-calculus
vector-analysis
Dimensions of integral
1
answers,
0
favourites,
33
views
physics
dimensional-analysis
Geometric intuition of an invariant set, positively invariant and negatively invariant
1
answers,
0
favourites,
291
views
dynamical-systems
nonlinear-system
nonlinear-analysis
set-invariance
Limits of a field point a distance z from a line charge
1
answers,
0
favourites,
25
views
limits
taylor-expansion
physics
mathematical-physics
change in unit radial vector and unit polar angle due to change in polar angle
1
2
answers,
1
favourites,
21
views
cylindrical-coordinates
Eigenvector for non-linear predator-prey equation
0
answers,
0
favourites,
38
views
linear-algebra
differential-equations
eigenvalues-eigenvectors
perturbation-theory
If $i$ is recurrent then expected recurrence time is the limit of $\frac 1 {(1-s)p_{ii}(s)}$
1
0
answers,
0
favourites,
16
views
real-analysis
convergence
stochastic-processes
generating-functions
markov-process
Abel's theorem and generating function
-1
1
answers,
0
favourites,
21
views
real-analysis
convergence
stochastic-processes
Communication between states i and j implies equality of periodicity of i and j
1
0
answers,
0
favourites,
23
views
number-theory
markov-chains
markov-process
j is null-recurrent IFF$\sum_{n=1}^{\infty}p_{jj}^{n}=\infty$ and $p_{jj}^{n}\rightarrow 0$ as $n\rightarrow \infty$
2
0
answers,
0
favourites,
23
views
real-analysis
convergence
markov-chains
markov-process
Transition probability and probability for first visit
2
1
answers,
0
favourites,
37
views
probability
stochastic-processes
markov-chains
markov-process
transition-matrix
Infinite sum over even indexs
1
answers,
0
favourites,
27
views
real-analysis
sequences-and-series
convergence
Cumulative distribution of a RV equal conditional probability
-1
1
answers,
0
favourites,
32
views
probability
probability-theory
probability-distributions
markov-chains
Expected value sum identity
2
answers,
0
favourites,
33
views
sequences-and-series
summation
expectation
direct-sum
The number of visits made by a Markov chain
0
answers,
0
favourites,
40
views
stochastic-processes
markov-chains
markov-process
Period of a state and the number of sets
1
1
answers,
1
favourites,
18
views
stochastic-processes
markov-chains
markov-process
No homomorphism from $Z_{16}\oplus Z_{2}$ onto $Z_{4}\oplus Z_{4}$.
4
2
answers,
2
favourites,
166
views
abstract-algebra
group-theory
finite-groups
group-isomorphism
group-homomorphism
Litmust test for existence of a function from irregular shape to a square
0
answers,
0
favourites,
15
views
general-topology
Left continuous random walk argument
1
0
answers,
0
favourites,
10
views
martingales
random-walk
Proof for Martingale at shortest time is a supermartingale
0
answers,
0
favourites,
11
views
stochastic-processes
martingales
vertex u and v connected via an edge implies $C(u)=C(v)$
1
answers,
0
favourites,
14
views
graph-theory
1
2
3
4
5
...
19
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