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#mathematiques

22 posts11 participants3 posts today
edp sciences<p>Algèbre, <a href="https://masto.ai/tags/astronomie" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomie</span></a>, <a href="https://masto.ai/tags/physique" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>physique</span></a>...Sumer, Egypte, Grèce...<br>Ce premier tome d'"Une Histoire de la Pensée Rationnelle" traite de la construction conjointe de la physique et des <a href="https://masto.ai/tags/math%C3%A9matiques" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathématiques</span></a> entre la Préhistoire et l’apparition d’une première forme d’<a href="https://masto.ai/tags/alg%C3%A8bre" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>algèbre</span></a> en Inde. La <a href="https://masto.ai/tags/philosophie" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>philosophie</span></a>, l’astronomie et l’ingénierie vont jouer un rôle déterminant dans ce processus qui est fortement lié aux mythes et aux évolutions politiques de l’Antiquité. <br>Plus d'info : <a href="https://buff.ly/FPVgFAG" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">buff.ly/FPVgFAG</span><span class="invisible"></span></a> <br><a href="https://masto.ai/tags/histoire" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>histoire</span></a></p>
Paysages Mathématiques<p>29 mars 1873: <a href="https://mathstodon.xyz/tags/CeJourL%C3%A0" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CeJourLà</span></a> naissance de Tullio Levi-Civita (†29/12/1941), mathématicien italien connu pour être l'inventeur, avec son ancien prof Gregorio Ricci-Curbastro, du calcul tensoriel (utile en relativité générale), et sa collaboration avec Einstein.<br><a href="https://fr.wikipedia.org/wiki/Tullio_Levi-Civita" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">fr.wikipedia.org/wiki/Tullio_L</span><span class="invisible">evi-Civita</span></a><br><a href="https://mathstodon.xyz/tags/math%C3%A9matiques" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathématiques</span></a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maths</span></a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a></p>
Paysages Mathématiques<p>29 mars 1896 : <a href="https://mathstodon.xyz/tags/CeJourL%C3%A0" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CeJourLà</span></a> naissance de Wilhelm Ackermann (†24/12/1962), mathématicien allemand dont les travaux portent essentiellement sur la logique mathématique. Il est connu pour la fonction qui porte son nom (en théorie de la calculabilité).<br><a href="https://fr.wikipedia.org/wiki/Wilhelm_Ackermann" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">fr.wikipedia.org/wiki/Wilhelm_</span><span class="invisible">Ackermann</span></a> <br><a href="https://mathstodon.xyz/tags/math%C3%A9matiques" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathématiques</span></a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maths</span></a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a></p>
Paysages Mathématiques<p>Source : Youtube / Société Mathématique de France - SMF</p><p><a href="https://www.youtube.com/watch?v=pXAfvtmZKt0" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">youtube.com/watch?v=pXAfvtmZKt</span><span class="invisible">0</span></a> <br><a href="https://mathstodon.xyz/tags/math%C3%A9matiques" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathématiques</span></a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maths</span></a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a> <a href="https://mathstodon.xyz/tags/youtube" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>youtube</span></a></p>
Paysages Mathématiques<p>"Comme l'histoire le prouve abondamment, la réussite mathématique, quelle que soit sa valeur intrinsèque, est la plus durable de toutes." – Godfrey Harold Hardy (1877-1947)<br><a href="https://mathstodon.xyz/tags/citation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>citation</span></a> <a href="https://mathstodon.xyz/tags/math%C3%A9matiques" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathématiques</span></a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maths</span></a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a></p>
edp sciences<p>Algèbre, <a href="https://masto.ai/tags/astronomie" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>astronomie</span></a>, <a href="https://masto.ai/tags/physique" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>physique</span></a>...Sumer, Egypte, Grèce...<br>Ce premier tome d'"Une Histoire de la Pensée Rationnelle" traite de la construction conjointe de la physique et des <a href="https://masto.ai/tags/math%C3%A9matiques" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathématiques</span></a> entre la Préhistoire et l’apparition d’une première forme d’<a href="https://masto.ai/tags/alg%C3%A8bre" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>algèbre</span></a> en Inde. La <a href="https://masto.ai/tags/philosophie" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>philosophie</span></a>, l’astronomie et l’ingénierie vont jouer un rôle déterminant dans ce processus qui est fortement lié aux mythes et aux évolutions politiques de l’Antiquité. <br>Plus d'info : <a href="https://buff.ly/FPVgFAG" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">buff.ly/FPVgFAG</span><span class="invisible"></span></a> <br><a href="https://masto.ai/tags/histoire" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>histoire</span></a></p>
Paysages Mathématiques<p>Source&nbsp;: Youtube / Rapémathiques</p><p><a href="https://www.youtube.com/watch?v=nc5xAJzsnKU" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">youtube.com/watch?v=nc5xAJzsnK</span><span class="invisible">U</span></a> <br><a href="https://mathstodon.xyz/tags/math%C3%A9matiques" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathématiques</span></a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maths</span></a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a> <a href="https://mathstodon.xyz/tags/Youtube" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Youtube</span></a> <a href="https://mathstodon.xyz/tags/rap" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>rap</span></a></p>
Paysages Mathématiques<p>Abel Prize 2025 : Masaki Kashiwara, "for his fundamental contributions to algebraic analysis and representation theory, in particular the development of the theory of D-modules and the discovery of crystal bases."</p><p><a href="https://abelprize.no/abel-prize-laureates/2025" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">abelprize.no/abel-prize-laurea</span><span class="invisible">tes/2025</span></a> <br><a href="https://mathstodon.xyz/tags/mathematics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathematics</span></a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maths</span></a> <a href="https://mathstodon.xyz/tags/math%C3%A9matiques" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathématiques</span></a> <a href="https://mathstodon.xyz/tags/AbelPrize" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AbelPrize</span></a> <a href="https://mathstodon.xyz/tags/AbelPrize2025" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AbelPrize2025</span></a></p>
Paysages Mathématiques<p>The Abel Prize announcement 2025<br>Source : Youtube / The Abel Prize</p><p><a href="https://www.youtube.com/watch?v=Vo3E8wgKnSQ" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">youtube.com/watch?v=Vo3E8wgKnS</span><span class="invisible">Q</span></a> <br><a href="https://mathstodon.xyz/tags/mathematics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathematics</span></a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maths</span></a> <a href="https://mathstodon.xyz/tags/math%C3%A9matiques" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathématiques</span></a> <a href="https://mathstodon.xyz/tags/AbelPrize" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AbelPrize</span></a> <a href="https://mathstodon.xyz/tags/AbelPrize2025" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AbelPrize2025</span></a></p>
Paysages Mathématiques<p>26 mars 1913 : <a href="https://mathstodon.xyz/tags/CeJourL%C3%A0" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CeJourLà</span></a> naissance de Paul Erdös (†20/9/1996), mathématicien hongrois ayant collaboré avec de nombreux mathématiciens. Ses travaux portent sur la théorie des nombres, la combinatoire, les probabilités, la théorie des ensembles, et l'analyse.<br><a href="https://fr.wikipedia.org/wiki/Paul_Erd%C5%91s" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">fr.wikipedia.org/wiki/Paul_Erd</span><span class="invisible">%C5%91s</span></a> <br><a href="https://mathstodon.xyz/tags/math%C3%A9matiques" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathématiques</span></a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maths</span></a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a></p>
Paysages Mathématiques<p>"C'est un devoir évident et impératif pour tout professeur de mathématiques d'étudier les chefs-d'œuvre de la littérature mathématique." – Clarence Eugene Van Horn<br><a href="https://mathstodon.xyz/tags/citation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>citation</span></a> <a href="https://mathstodon.xyz/tags/math%C3%A9matiques" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathématiques</span></a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maths</span></a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a></p>
Paysages Mathématiques<p>Mathématiques et défis du 21e siècle : le CNRS lance un nouveau programme pour les relever<br>Source : CNRS</p><p><a href="https://www.cnrs.fr/fr/presse/mathematiques-et-defis-du-21e-siecle-le-cnrs-lance-un-nouveau-programme-pour-les-relever" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">cnrs.fr/fr/presse/mathematique</span><span class="invisible">s-et-defis-du-21e-siecle-le-cnrs-lance-un-nouveau-programme-pour-les-relever</span></a> <br><a href="https://mathstodon.xyz/tags/math%C3%A9matiques" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathématiques</span></a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maths</span></a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a><br><span class="h-card" translate="no"><a href="https://social.numerique.gouv.fr/@cnrs" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>cnrs</span></a></span></p>
Paysages Mathématiques<p>25 mars 1538 : <a href="https://mathstodon.xyz/tags/CeJourL%C3%A0" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CeJourLà</span></a> naissance de Christophorus Clavius (†6/2/1612), mathématicien, astronome et jésuite allemand, qui a notamment participé à la mise en place du calendrier grégorien, et a publié une version commentée des Éléments d'Euclide.<br><a href="https://fr.wikipedia.org/wiki/Christophorus_Clavius" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">fr.wikipedia.org/wiki/Christop</span><span class="invisible">horus_Clavius</span></a><br><a href="https://mathstodon.xyz/tags/math%C3%A9matiques" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathématiques</span></a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maths</span></a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a></p>
Paysages Mathématiques<p>24 mars 1809 : <a href="https://mathstodon.xyz/tags/CeJourL%C3%A0" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CeJourLà</span></a> naissance de Joseph Liouville (†9/9/1882), mathématicien français dont les travaux portent notamment sur la th. des nombres (1re preuve d'existence de nb. transcendants), l'analyse réelle et complexe (cf. th. de Liouville), la géométrie.<br><a href="https://fr.wikipedia.org/wiki/Joseph_Liouville" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">fr.wikipedia.org/wiki/Joseph_L</span><span class="invisible">iouville</span></a><br><a href="https://mathstodon.xyz/tags/math%C3%A9matiques" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathématiques</span></a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maths</span></a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a></p>
Petit Bridge Challenge<p>Nouvelle semaine et présentation du défi 1️⃣7️⃣ ! Observez, raisonnez, anticipez !</p><p>On attend vos réponses en commentaire 🧵 </p><p>💡 Une idée issue du manuel "Les grands espoirs" proposé gratuitement par la <a href="https://mastodon.scollectif.fr/tags/FFBridge" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FFBridge</span></a> !<br>👉 <a href="https://www.ffbridge.fr/p/petit-bridge" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">ffbridge.fr/p/petit-bridge</span><span class="invisible"></span></a></p><p><span class="h-card" translate="no"><a href="https://mastodon.scollectif.fr/@scollectif" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>scollectif</span></a></span> <br><a href="https://mastodon.scollectif.fr/tags/TeamPE" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TeamPE</span></a> <a href="https://mastodon.scollectif.fr/tags/TeamProf" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TeamProf</span></a> <a href="https://mastodon.scollectif.fr/tags/Education" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Education</span></a> <a href="https://mastodon.scollectif.fr/tags/P%C3%A9dagogie" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Pédagogie</span></a> <a href="https://mastodon.scollectif.fr/tags/Math%C3%A9matiques" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Mathématiques</span></a> <a href="https://mastodon.scollectif.fr/tags/Maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Maths</span></a> <a href="https://mastodon.scollectif.fr/tags/CPS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CPS</span></a> <a href="https://mastodon.scollectif.fr/tags/PetitBridge" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PetitBridge</span></a> <a href="https://mastodon.scollectif.fr/tags/BridgeEdu" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>BridgeEdu</span></a> <a href="https://mastodon.scollectif.fr/tags/Calcul" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Calcul</span></a> <a href="https://mastodon.scollectif.fr/tags/Bridge" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Bridge</span></a></p>
Paysages Mathématiques<p>23 mars 1749 : <a href="https://mathstodon.xyz/tags/CeJourL%C3%A0" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CeJourLà</span></a> naissance de Pierre-Simon (de) Laplace (†5/3/1827), mathématicien, astronome, et physicien français majeur, dont les travaux portent notamment sur la mécanique céleste et la théorie des probabilités.<br><a href="https://fr.wikipedia.org/wiki/Pierre-Simon_de_Laplace" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">fr.wikipedia.org/wiki/Pierre-S</span><span class="invisible">imon_de_Laplace</span></a> <br><a href="https://mathstodon.xyz/tags/math%C3%A9matiques" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathématiques</span></a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maths</span></a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a></p>
Paysages Mathématiques<p>"Il est certes peu d'hommes, à notre époque, aussi complètement libres dans le jeu de leur activité intellectuelle que le mathématicien. Si des idéologies d'État s'attaquent parfois à sa personne, jamais encore elles ne se sont mêlées de juger ses théorèmes." – André Weil (1906-1998)<br><a href="https://mathstodon.xyz/tags/citation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>citation</span></a> <a href="https://mathstodon.xyz/tags/math%C3%A9matiques" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathématiques</span></a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maths</span></a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a></p>
Paysages Mathématiques<p>"Les mathématiques, dans leur sens le plus large, sont le développement de tous les types de raisonnement formel, nécessaire et déductif." – Alfred North Whitehead (1861-1947)<br><a href="https://mathstodon.xyz/tags/citation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>citation</span></a> <a href="https://mathstodon.xyz/tags/math%C3%A9matiques" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathématiques</span></a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maths</span></a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a></p>
Paysages Mathématiques<p>21 mars 1768 : <a href="https://mathstodon.xyz/tags/CeJourL%C3%A0" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CeJourLà</span></a> naissance de Joseph Fourier (†16/5/1830), mathématicien et physicien français connu pour ses travaux sur la diffusion de la chaleur, à l'origine de nouveaux outils mathématiques (séries de Fourier, transformation de Fourier).<br><a href="https://fr.wikipedia.org/wiki/Joseph_Fourier" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">fr.wikipedia.org/wiki/Joseph_F</span><span class="invisible">ourier</span></a><br><a href="https://mathstodon.xyz/tags/math%C3%A9matiques" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathématiques</span></a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maths</span></a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a></p>
Paysages Mathématiques<p>21 mars 1884 : <a href="https://mathstodon.xyz/tags/CeJourL%C3%A0" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CeJourLà</span></a> naissance de George David Birkhoff (†12/11/1944), mathématicien américain dont les travaux principaux portent sur l'étude des systèmes dynamiques (théorème de Poincaré-Birkhoff, théorème ergodique).<br><a href="https://fr.wikipedia.org/wiki/George_David_Birkhoff" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">fr.wikipedia.org/wiki/George_D</span><span class="invisible">avid_Birkhoff</span></a><br><a href="https://mathstodon.xyz/tags/math%C3%A9matiques" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mathématiques</span></a> <a href="https://mathstodon.xyz/tags/maths" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>maths</span></a> <a href="https://mathstodon.xyz/tags/math" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>math</span></a></p>
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