@nhigham

Mathematician, writer and photographer

 Manchester
nhigham.com/
Joined February 2009
  • Tweets3.2K
  • Following77
  • Followers5.1K
448Media
What Is the Spectral Radius of a Matrix? nhigham.com/2024/01/12/what-…

What Is the Spectral Radius of a Matrix?

The spectral radius $latex \rho(A)$ of a square matrix $latex A\in\mathbb{C}^{n\times n}$ is the largest absolute value of any eigenvalue of $LATEX A$: $latex \notag \rho(A) = \max\{\, |\lambda|: \…

nhigham.com
1
9
4
62
6,503
What Is the Spectral Radius of a Matrix? nhigham.com/2024/01/12/what-…

What Is the Spectral Radius of a Matrix?

The spectral radius $latex \rho(A)$ of a square matrix $latex A\in\mathbb{C}^{n\times n}$ is the largest absolute value of any eigenvalue of $LATEX A$: $latex \notag \rho(A) = \max\{\, |\lambda|: \…

nhigham.com
33
1
123
15,372
Diffusion Models for Generative Artificial Intelligence: An Introduction for Applied Mathematicians, Catherine F. Higham, Desmond J. Higham, Peter Grindrod arxiv.org/abs/2312.14977
29
1
97
12,515
NLA Group and Arup win Technical Excellence Award at Innovate UK’s Knowledge Transfer Partnership Awards 2023 nla-group.org/2023/12/17/nla…
6
12
2,909
Prof. Stefan Güttel awarded a Royal Society Industry Fellowship nla-group.org/2023/12/19/pro…
1
5
15
2,678
Just reserved at this hotel. Presumably the room numbers have the form (i,i+1).
1
3
18
2,454
What Is a Hessenberg Matrix? nhigham.com/2023/12/05/what-…
3
18
1
117
15,202
The Power of Bidiagonal Matrices nhigham.com/2023/11/22/the-p…
1
25
212
25,764
What Is an Invariant Subspace? nhigham.com/2023/10/24/what-…
1
4
24
2,936
Chair in Applied Mathematics at @ManUniMaths @OfficialUoM to complement and extend existing data science activity in the Dept of Mathematics. Closes 23/11/2023. jobs.manchester.ac.uk/Job/Jo…

Chair in Data Science (T&R) :Oxford Road

jobs.manchester.ac.uk
12
1
10
4,099
What Is a Submatrix? nhigham.com/2023/10/11/what-…
1
4
16
2,387
Nick Higham retweeted
Bahar Arslan@barslan45 Oct 2023
Excited to share that it has arrived at our campus library :) @nhigham
1
2
12
1,409
Slides from ICIAM 2023 Minisymposium on Stochastic Rounding for Reduced-Precision Arithmetic in Scientific Computing nla-group.org/2023/10/02/ici…
1
10
1,929
Great to be talking about "Missing the Mark" at 6:30 this evening at the Waterstones flagship Piccadilly book shop! @CanburyPress @dutaut @heymrshallahan @Melissa_Benn @schooltruth @AnnaFazack1 @LouisaClarence @SianGriffiths6 @RSylvesterTimes @RichardA thebookseller.com/news/small…
2
2
982
What Is a Flop? #floating-point #arithmetic nhigham.com/2023/09/05/what-…
19
62
8,402
Hamilton, the Quaternions, and Creativity @noookophile nhigham.com/2023/08/29/hamil…
4
1
20
1,908
Throwback to ten years ago, when we saw Twitter as a buoyant extension of our networking and scientific communication opportunities #nostalgia — with @dgleich @nhigham @DrPaulynomial #scicomm
Lorena Barba @[email protected]@LorenaABarba29 Sep 2013
Plugging Twitter for mathematicians by saying I've met biologists? Interviewed by @SIAMconnect (when I had braces) youtu.be/S2NVjeZMln4
2
9
2,954
If you're in Edinburgh for the Festival, check out The Improv Musical by Music Theatre Warwick. Review: broadwaybaby.com/shows/the-i… Tickets: tickets.edfringe.com/whats-o…

Broadway Baby: The Improv Musical

Listing info for ​The Improv Musical on Broadway Baby

broadwaybaby.com
2
1,584
New additions to J. H. Wilkinson page nla-group.org/james-hardy-wi… under Publications and Notes: "Rounding Error Analysis". Notes from a class at Argonne National Laboratory, 1975 or 1976 and "Supplementary Notes and Problems from CS237B", Winter Quarter, 1982.
5
1
28
3,586
Just appeared in SIAM Journal on Matrix Analysis and Applications: "Probabilistic Rounding Error Analysis of Householder QR Factorization" epubs.siam.org/eprint/NGUG2G…
9
1
49
4,657
Load more