Federico Poloni

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Name Federico Poloni
Member for 3 years
Seen 8 hours ago
Website
Location Pisa, Italy
Age 30
Numerical linear algebra. Matrix equations + control.
18

Questions
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34

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2-norm of the upper triangular “all-ones” matrix

aug 9 11 at 7:46 Geoff Robinson 9,926●1●21●27

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6
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Matrices that are Hadamard products of $X$ and $X^{-T}$

apr 28 11 at 13:41 Denis Serre 18.7k●1●31●93

 

 

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5
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answer
115
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Linear maps preserving positive semidefiniteness

jan 3 at 15:43 Felix Goldberg 2,385●5●12

 
4
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1
answer
562
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Computation of a Drazin inverse

may 16 12 at 10:57 Felix Goldberg 2,385●5●12

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0
answers
406
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Using bibtex files with coauthors [closed]

dec 28 10 at 15:42 Federico Poloni 4,400●1●12●25

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119

Answers
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47
An example of a beautiful proof that would be accessible at the high school level?
15
Are there ill-conditioned problems in infinite precision arithmetric?
15
Why don’t more mathematicians improve Wikipedia articles?
14
Teaching proofs in the era of Google
14
Basic software libraries for numerical analysis using modern programming languages?
13
Fiction books about mathematicians? (2)
11
Submitting papers “out of logical order” due to different review times or rejections
11
Wonderful applications of the Vandermonde determinant
11
Linking to Code in a Paper
10
Getting nervous refereeing a paper
10
A Linear Algebra Problem
10
name for a matrix operation
9
Noteworthy achievements in and around 2010?
8
Labeling a Square Array
8
Should the formula for the inverse of a 2x2 matrix be obvious?
7
Spectral Properties of $A(I-A)^{-1}$
7
Jacobi’s equality between complementary minors of inverse matrices
7
Efficiently computing a few localized eigenvectors
6
How do you solve linear systems whose solutions decay exponentially?
6
Useful tricks in experimental mathematics
6
shifted QR algorithm--why does the shift help ?
6
How to solve Ax=b incrementally ?
6
Solving for Moore Penrose pseudo inverse
6
Demonstrating that rigour is important
6
spectral radius monotonicity
6
Old books still used
5
Elementary Markov Chain Question
5
complexity of eigenvalue decomposition
4
What’s tropical about tropical algebra?
4
Why do we want to have orthogonal bases in decompositions?
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