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| * Zoom link: https://zoom.us/j/96302249436, Meeting ID: 963 0224 9436, Passcode: 932291 * YouTube livestream: https://youtu.be/JWU8YV37t7c |
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| || 0900-1000 || Alba Málaga || Certified Plotting/SageMath and 3D Printing || | || 0900-1000 || Alba Málaga || 3D printing mathematical surfaces || |
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| || 0900-1000 || Eric Marberg || TBA || | || 0900-1000 || Eric Marberg || Shifted combinatorial Hopf algebras for K-theory || |
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==== Talk Details ==== Ajit Kumar: An introduction to SageMath [[https://www.imsc.res.in/~amri/SageDays114_Ajit.html|Slides]] Eric Marberg: Shifted combinatorial Hopf algebras for K-theory The self-dual Hopf algebra of symmetric functions Sym embeds into the quasisymmetric functions QSym. The dual of QSym is the Hopf algebra of noncommutative symmetric functions NSym, which itself embeds into the self-dual Malvenuto-Reutenaurer Hopf algebra of permutations. These embeddings and their adjoint projections can be conveniently drawn as a diagram of six Hopf algebras. This talk will discuss "K-theoretic" and "shifted" generalizations of this diagram, along with some algorithmic problems related to computing products, coproducts, and antipodes in the relevant Hopf algebras. The new results in this talk are joint work with Joel Lewis. Alba Málaga: 3D printing mathematical surfaces [[https://cocalc.com/share/download/4d2794d3703605f4aa2890e17bab0073e381b918/Talk.pdf|Slides]] As a mathematician, you don't need to touch a surface to feel how beautiful it is. But what if you want to talk about it to your grandpa or your least mathematical friend? There is somethng deeply satisfying about being able to hand them an object which represents the concept you want to talk about pretty well and which they can touch. The methods and challenges will vary according to which mathematical object you try to represent. In this talk, I will present cookbook methods and discuss challenges for 3D-printing three very classical kinds of mathematical surfaces: constant-negative curvature surfaces, minimal surfaces, algebraic surfaces. The software used will be Sagemath, MathMod, Surface Evolver, Blender and Cura. Julian Rüth: Interactive Visualization in SageMath We look at existing visualization in SageMath and that it's mostly lacking real interactivity. Interactive widgets are, however, not so hard to build with SageMath. We showcase the [ipymuvue](https://github.com/flatsurf/ipymuvue) package which is a reimplementation of [ipyvue](https://github.com/mariobuikhuizen/ipyvue/releases) in Vue3. The graph editor developed during the talk is at https://github.com/flatsurf/ipymuvue/tree/master/examples/graph-editor. |
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| Following the Sage Days, a *Sage Club* will meet twice a week at CMI. The *Sage Club* is going to be an open forum, led by Samuel Lelièvre and Julian Rüth, where we will learn more about SageMath, focusing on the interests of the participants. Just as with the Sage Days, beginners and students are very welcome at any session. We will meet on Tuesdays and Thursdays at 3pm, starting from Thursday 28th of July. (If this time frame is inconvenient for you, please let us know, we should be able to move the sessions to another time.) The exact location at CMI where we will meet has not been fixed yet. It will be announced here. There is no precise program for the *Sage Club*. We will certainly begin with tutorials to get you started but after that we want to adapt to the interests of the participants. To give you some ideas, we could try to see how Sage can be used to solve a problem that you are working on, we could look into visualization of Mathematics, we could try to extend some part of SageMath, we could discuss mathematical problems with a computational flavor, … |
Following the Sage Days, a [[days114/club|''Sage Club'']] will meet twice a week at CMI. The ''Sage Club'' is going to be an open forum, led by Samuel Lelièvre and Julian Rüth, where we will learn more about SageMath, focusing on the interests of the participants. Just as with the Sage Days, beginners and students are very welcome at any session. |
Sage Days 114
Following the 34th FPSAC 2022.
The Sage days will consist in an intense three-day meeting at IMSc:
July 25–27, 2022, The Institute of Mathematical Sciences (IMSc), Chennai, India
Zoom link: https://zoom.us/j/96302249436, Meeting ID: 963 0224 9436, Passcode: 932291
YouTube livestream: https://youtu.be/JWU8YV37t7c
Following this intense period, a working group on software for mathematics and their illustration will meet twice a week for a few weeks, mostly at the Chennai Mathematical Institute (CMI), led by Julian Rüth and Samuel Lelièvre.
Organizing Committee
- Arvind Ayyer (Indian Institute of Science)
- Manoj Kummini (Chennai Mathematical Institute)
- Samuel Lelièvre (Laboratoire de mathématique d'Orsay, Université Paris-Saclay)
- Julian Rüth
- Amritanshu Prasad (The Institute of Mathematical Sciences, Chennai)
- Travis Scrimshaw (Hokkaido University)
- S. Viswanath (The Institute of Mathematical Sciences, Chennai)
- Pascal Weil (CNRS, Chennai/Bordeaux)
Tentative Schedule
Day 1: 25th July 2022
Time |
Speaker |
Title |
0930-1030 |
Ajit Kumar |
Introduction to SageMath |
1030-1130 |
Samuel Lelièvre |
SageMath for Educators |
1130-1200 |
High Tea |
|
1200-1300 |
"Bring Your Own Problem" Session |
|
1300-1430 |
Lunch |
|
1430-1530 |
Julian Rüth |
SageMath Installation |
1530-1630 |
Projects for Coding Sprints |
|
1630-1730 |
Coding Sprints |
|
Day 2: 26th July 2022
Time |
Speaker |
Title |
0900-1000 |
Alba Málaga |
3D printing mathematical surfaces |
1000-1030 |
Coffee Break |
|
1030-1145 |
The Organizers (mostly) |
Tutorials Upon Request |
1145-1245 |
Julian Rüth |
Interactive Visualization in SageMath |
1245-1415 |
Lunch |
|
1415-1730 |
Coding Sprints |
|
Day 3: 27th July 2022
Time |
Speaker |
Title |
0900-1000 |
Eric Marberg |
Shifted combinatorial Hopf algebras for K-theory |
1000-1030 |
Coffee Break |
|
1030-1130 |
Martin Rubey |
Combinatorial Species |
1145-1245 |
Kanak Dhotre |
Visualizing Julia Sets |
1245-1415 |
Lunch |
|
1415-1730 |
Coding Sprints |
|
Talk Details
Ajit Kumar: An introduction to SageMath Slides
Eric Marberg: Shifted combinatorial Hopf algebras for K-theory
The self-dual Hopf algebra of symmetric functions Sym embeds into the quasisymmetric functions QSym. The dual of QSym is the Hopf algebra of noncommutative symmetric functions NSym, which itself embeds into the self-dual Malvenuto-Reutenaurer Hopf algebra of permutations. These embeddings and their adjoint projections can be conveniently drawn as a diagram of six Hopf algebras. This talk will discuss "K-theoretic" and "shifted" generalizations of this diagram, along with some algorithmic problems related to computing products, coproducts, and antipodes in the relevant Hopf algebras. The new results in this talk are joint work with Joel Lewis.
Alba Málaga: 3D printing mathematical surfaces Slides
As a mathematician, you don't need to touch a surface to feel how beautiful it is. But what if you want to talk about it to your grandpa or your least mathematical friend? There is somethng deeply satisfying about being able to hand them an object which represents the concept you want to talk about pretty well and which they can touch. The methods and challenges will vary according to which mathematical object you try to represent. In this talk, I will present cookbook methods and discuss challenges for 3D-printing three very classical kinds of mathematical surfaces: constant-negative curvature surfaces, minimal surfaces, algebraic surfaces. The software used will be Sagemath, MathMod, Surface Evolver, Blender and Cura.
Julian Rüth: Interactive Visualization in SageMath
We look at existing visualization in SageMath and that it's mostly lacking real interactivity. Interactive widgets are, however, not so hard to build with SageMath. We showcase the [ipymuvue](https://github.com/flatsurf/ipymuvue) package which is a reimplementation of [ipyvue](https://github.com/mariobuikhuizen/ipyvue/releases) in Vue3.
The graph editor developed during the talk is at https://github.com/flatsurf/ipymuvue/tree/master/examples/graph-editor.
Sage Club at CMI
Following the Sage Days, a ''Sage Club'' will meet twice a week at CMI. The Sage Club is going to be an open forum, led by Samuel Lelièvre and Julian Rüth, where we will learn more about SageMath, focusing on the interests of the participants. Just as with the Sage Days, beginners and students are very welcome at any session.