Mathematics
Bertrand's user avatar
Bertrand's user avatar
Bertrand's user avatar
Bertrand
  • Member for 5 years, 7 months
  • Last seen this week
  • Strasbourg, France
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646
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29
answers
1
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12
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7
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23
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8
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17
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8
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7
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5
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17
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Top posts
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All Questions Answers
Score Newest
answer
6
To find the inverse of a special kind of matrix.
Feb 12, 2019
answer
2
Taylor expansion of likelihood function
Dec 5, 2018
answer
2
Derivative of matrix using index notation
Dec 27, 2018
answer
2
Derivatives of inverse matrix
Jan 7, 2019
answer
2
A question regarding an integrable function
Feb 13, 2020
answer
1
Existence of MLE
Jan 6, 2019
answer
1
Show that $A = \sum_i \lambda_i x_i x_i^T$
Jan 25, 2019
answer
1
Approximation of conditional expectation of unknown function
Jan 25, 2019
answer
1
Solve $\min_{x} \frac{1}{N}\sum_{i=1}^{N} f_i(x_i) + g(x)$ $\ {\rm s.t.} Ax = b$; $x = [x_1,\ldots,x_N]^T$ and $A \in \mathbb{R}^{M \times N}$.
Jan 26, 2019
answer
1
How to extract a positive definite submatrix from a PSD matrix?
Jan 28, 2019
Top network posts
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10
Estimating CES utility (not production) function parameters
10
Has monopoly theory incorporated network effects as a source of monopoly?
7
Under what condition is a cost function strictly concave in prices?
6
How do small firms survive in an oligopoly?
6
Intermediate Case of Bertrand and Cournot

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