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Results tagged with pr.probability
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user 9022
Theory and applications of probability and stochastic processes: e.g. central limit theorems, large deviations, stochastic differential equations, models from statistical mechanics, queuing theory.
5
votes
Characterising semi-definite positiveness on vectors with non-negative entries
Your cone $C$ is the cone of copositive matrices. The dual of C is the cone of compeltely positive matrices. See e.g.
http://mathworld.wolfram.com/CopositiveMatrix.html
- 3,934
2
votes
On Random Vectors and Eigenvectors of Symmetric Matrices
In this case, it's easy enough to compute the probability exactly in terms of the incomplete beta function.
Let $v$ be the fixed unit vector, and $r$ be the random unit vector, uniformly distributed …
- 3,934
8
votes
Normal distribution with positive SEMI-definite covariance matrix
As the commenters have already mentioned, there isn't a probability density function in the case where the covariance matrix is singular. Rather, you have a distribution that lives on a lower dimensi …
- 3,934
4
votes
Random versions of deterministic problems
See The Probabilistic Method by Noga Alon and Joel H. Spencer.
1
vote
Multiplying two probability distributions represented by particles
You seem a bit confused about multiplication and convolution. Do you need the convolution of the two pdf's (this would give you the pdf of the sum of the random variables), or the product of the pdf' …
- 3,934