@antoinechambertloir@mathstodon.xyz avatar

antoinechambertloir

@antoinechambertloir@mathstodon.xyz
  • Apprentice mathematician (Professor at Université Paris Cité),
    interested in algebraic geometry, number theory and (more recently) proof formalization
  • Apprentice musician (drums, tabla, cajon; previously Diderock; a rarely meeting jazz trio/quartet).
  • Apprentice progressist.

In love with math, jazz, indian music and poetry. ⏚

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johncarlosbaez, to random
@johncarlosbaez@mathstodon.xyz avatar

Sometimes you can't tell whether mathematicians are joking.

(1/2)

antoinechambertloir,
@antoinechambertloir@mathstodon.xyz avatar

@johncarlosbaez where would there be a joke? (I know JLCT pretty well and I can't imagine him doing jokes in math titles.)

ColinTheMathmo, to random
@ColinTheMathmo@mathstodon.xyz avatar

To help get out of my immediate circle, I'd appreciate boosts of this post:

https://mathstodon.xyz/@ColinTheMathmo/110445343067257631

Only, of course, if you're happy to do so.

Thx.

antoinechambertloir,
@antoinechambertloir@mathstodon.xyz avatar

@ColinTheMathmo I liked the question, and although I fell in the 5% who answer 1 hour, it makes me think about my intimate perception of time.

antoinechambertloir,
@antoinechambertloir@mathstodon.xyz avatar

@ColinTheMathmo in french, I often say « j'ai passé une petite heure à... ». Moreover, my job, many of my activities require usually much more than one hour to be completed.

joshuagrochow, to random
@joshuagrochow@mathstodon.xyz avatar

Is there a term for when a class of equations has sol'ns over an extension field iff it has sol'ns over the ground field?

Examples:

  1. Linear eqns
  2. Eqns saying that two fin. dim. rep'ns of a fin. generated algebra are equivalent

Non-ex: eqns saying two 3-tensors are isomorphic

antoinechambertloir,
@antoinechambertloir@mathstodon.xyz avatar

@joshuagrochow in model theory, something like that (with any kind of equations allowed by the language and quantifiers) is called “existentially closed”.

antoinechambertloir, to random French
@antoinechambertloir@mathstodon.xyz avatar

An informal consultation of Inria researchers (a French leading institution in Computer science and Applied math) showed that they largely do not trust the politics led by its CEO Bruno Sportisse.

Roughly 1000 people out of 4000 voted, and 80% said no.

https://www.nextinpact.com/lebrief/71704/inria-large-defiance-personnel-contre-reconduite-pdg-bruno-sportisse

antoinechambertloir, to random French
@antoinechambertloir@mathstodon.xyz avatar

Great bike infrastructure (no).

antoinechambertloir, to random French
@antoinechambertloir@mathstodon.xyz avatar

Extraordinaire.

Après avoir directement influé sur l'évaluation et l'organisation d'institutions de recherche et d'éducation, Thierry Coulhon voudrait maintenant e diriger l'une d'entre elles, et pas la moindre…

Éthique en toc…

Joemoeller, to random
@Joemoeller@mathstodon.xyz avatar

wow look, I'm blogging again

https://joe-moeller.com/2023/05/11/a-boring-blog-post/

antoinechambertloir,
@antoinechambertloir@mathstodon.xyz avatar

@Joemoeller @johncarlosbaez
The HTML code for a non-breaking space, but I can't find one in you title, this is strange.

antoinechambertloir,
@antoinechambertloir@mathstodon.xyz avatar

@Joemoeller @johncarlosbaez It looks as if the last space between two words is replaced by a non-breaking-one, and then transformed into its HTML code. Maybe @christianp knows about that.

antoinechambertloir, to random French
@antoinechambertloir@mathstodon.xyz avatar

René Chiche suspendu pour trois mois, je ne sais pas s'il faut vraiment se réjouir, mais quand même, c'est dur de ne pas...

antoinechambertloir,
@antoinechambertloir@mathstodon.xyz avatar

@HydrePrever @ciredutempsEsme les propos incriminés ont peut-être été tenus en classe...

antoinechambertloir,
@antoinechambertloir@mathstodon.xyz avatar

@krazykitty @jaztrophysicist @MadameMollette @1HommeAzerty @HydrePrever @ciredutempsEsme

Pour ma part, c'est un mélange de privilège et d'affirmation de ce privilège, en tant qu'il est nécessaire et que le jour où il cesse, c'est la fin des haricots.

antoinechambertloir, to random French
@antoinechambertloir@mathstodon.xyz avatar

“People who criticize new technologies are sometimes called Luddites, but it’s helpful to clarify what the Luddites actually wanted. The main thing they were protesting was the fact that their wages were falling at the same time that factory owners’ profits were increasing, along with food prices. They were also protesting unsafe working conditions, the use of child labor, and the sale of shoddy goods that discredited the entire textile industry. The Luddites did not indiscriminately destroy machines; if a machine’s owner paid his workers well, they left it alone. The Luddites were not anti-technology; what they wanted was economic justice. They destroyed machinery as a way to get factory owners’ attention. The fact that the word “Luddite” is now used as an insult, a way of calling someone irrational and ignorant, is a result of a smear campaign by the forces of capital.

Whenever anyone accuses anyone else of being a Luddite, it’s worth asking, is the person being accused actually against technology? Or are they in favor of economic justice? And is the person making the accusation actually in favor of improving people’s lives? Or are they just trying to increase the private accumulation of capital?”

antoinechambertloir, to random French
@antoinechambertloir@mathstodon.xyz avatar

Un étudiant m'écrit pour me demander qu'on souscrive un abonnement collectif à Chat GPT 4 dans le but de se préparer aux oraux du concours de l'agrégation.
J'avoue ne pas savoir comment lui répondre.

antoinechambertloir,
@antoinechambertloir@mathstodon.xyz avatar

@krazykitty
La question est comment, dans ce cas, être pédagogique sans être quasi insultant.

antoinechambertloir,
@antoinechambertloir@mathstodon.xyz avatar

@krazykitty Au point que je ne suis pas sûr que ce ne soit pas une blague.

antoinechambertloir,
@antoinechambertloir@mathstodon.xyz avatar

@krazykitty @1HommeAzerty @flomaraninchi
C'est peut-être pour la partie « illustration informatique » de l'option, mais même là, vu ce le niveau de ce qui est demandé, c'est totalement idiot (et dans un mois, il devra savoir le faire…).

antoinechambertloir, to random French
@antoinechambertloir@mathstodon.xyz avatar

Très bon entretien, avec Claire Lemercier, Autriche avec Julie Gervais et Willy Pelletier de La valeur du service public

https://www.editionsladecouverte.fr/la_valeur_du_service_public-9782348068553

https://www.radiofrance.fr/franceculture/podcasts/l-invite-e-des-matins/reformer-en-france-4-4-des-services-publics-en-reanimation-3192766

antoinechambertloir, to random French
@antoinechambertloir@mathstodon.xyz avatar

Canto Sperber sur France Culture, expliquant pépouze que le libéralisme du libre marché, c'est une magnifique idée, certes elle ne marche pas en pratique, mais il faut continuer à la promouvoir…

antoinechambertloir,
@antoinechambertloir@mathstodon.xyz avatar

@krazykitty J'écoute plus jamais… Leur faiblesse de pensée m'a fasciné.
(Ils auraient au moins pu inviter deux philosophes d'obédiences différentes, CS + Rancière,
ou quelqu'un du genre…)

antoinechambertloir, to random French
@antoinechambertloir@mathstodon.xyz avatar

Ursula K. Le Guin – The Left Hand of Darkness

“You don't see yet, Genry, why we perfected and practice Foretelling ?
— No…
— To exhibit the perfect uselessness of knowing the answer to the wrong question.”

“The only thing that makes life possible is permanent, untolerable uncertainty: not knowing what comes next.”

grototo, to random French

Tiens ❤ Angela Hewitt 💜 à publié un article dans le Guardian où elle parle de mémoire en musique, de jouer par cœur et avec la partition.

https://www.theguardian.com/music/2023/apr/25/angela-hewitt-pianist-memory-muscle

antoinechambertloir,
@antoinechambertloir@mathstodon.xyz avatar

@grototo @chtruchet
Je ne sais pas pourquoi la musique occidentale met l'accent sur l'oreille absolue. Opinion personnelle : c'est plus nuisible qu'utile à la musique.
Savoir transposer un morceau (pour s'adapter à un chanteur par exemple) me semble plus important.
La musique indienne est relative.
Et quand un pianiste à l'oreille absolue se met au saxophone ou à un autre instrument transpositeur, ça lui pose quelques soucis....

sindarina, to random

Towards the end of December 2019 I did a whole thread on Twitter, essentially reviewing the decade as ‘The Decade of Dishonest Technology’. It didn't start with that decade, and it hasn't stopped since, but it was the decade that got bought, and then sold everything about us under false pretenses, whether for state or corporate purposes.

It was the decade of technology that wasn't only biased, but straight up lied to us. Lies that most of us didn't really care about, as long as they didn't hit our own wallet.

Strap in, I am reviewing and updating the whole thread for the Mastodon Age.

1/ 🧵

antoinechambertloir,
@antoinechambertloir@mathstodon.xyz avatar

@sindarina what do you mean with “Android being the most insecure system”?

antoinechambertloir, to jazz French
@antoinechambertloir@mathstodon.xyz avatar

Ready for tonight's show at the Jazz Gallery!

Dave Liebman, Tyshawn Sorey, Adam Rudolph.

antoinechambertloir,
@antoinechambertloir@mathstodon.xyz avatar
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