Number theory

Granville number

In mathematics, specifically number theory, Granville numbers, also known as -perfect numbers, are an extension of the perfect numbers. (Wikipedia).

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全髋关节置换术

(English Version: https://www.youtube.com/watch?v=DosqbEy8ecY) http://www.nucleusinc.com/ - 这个三维动画介绍了右髋关节的全髋关节置换术。该手术包括切开、露出髋关节、放置髋臼修复假体(窝)、割掉发炎的股沟头、放置股骨头假体(球)。

From playlist 在中国医学动画

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From playlist everything

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野口宇宙飛行士のISS紹介

野口宇宙飛行士が、国際宇宙ステーション(ISS)の「きぼう」日本実験棟や、STS-130(20A)ミッションで取り付けられた「トランクウィリティー」(第3結合部)、キューポラを紹介します。

From playlist Living in Space - Jaxa

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MegaFavNumbers My Mega Favorite Number ? 《百萬最數配》 你最愛哪個百萬大數?

身為百萬頻道(一百訂閱一萬觀看) 我們也來響應 #MegaFavNumbers 的活動啦! 你喜歡哪個百萬大數?歡迎一起參與活動喔! (英文這麼破的我們都挑戰了,你也一定行!) 活動說明:https://amathing.world/megafavnumbers/ 影片清單:https://www.youtube.com/playlist?list=PLar4u0v66vIodqt3KSZPsYyuULD5meoAo

From playlist MegaFavNumbers

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剖腹产

http://www.nucleushealth.com/ - 这个三维动画演示了剖腹产术的常见原因,包括肩难产、前置胎盘、胎儿窘迫和多胞胎。在这个动画中,产科医生透过比基尼切口,把处于伸腿臀位的婴儿(脚先出来)拿出来。动画还包括产妇在手术前后应当知道的信息。 ANCE00177ch

From playlist 在中国医学动画

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Hitler's Sea Wolves - The Granville Raid 1945

The thrilling story of the last German naval raid of the war, a sudden attack on the Normandy port of Granville by a flotilla of German warships from Jersey in the occupied Channel Islands. Dr. Mark Felton is a well-known British historian, the author of 22 non-fiction books, including be

From playlist Ships

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Youness Lamzouri: Large character sums

Abstract : For a non-principal Dirichlet character χ modulo q, the classical Pólya-Vinogradov inequality asserts that M(χ):=maxx|∑n≤xχ(n)|=O(q‾√log q). This was improved to q‾√log log q by Montgomery and Vaughan, assuming the Generalized Riemann hypothesis GRH. For quadratic characters, th

From playlist Number Theory

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呼叫魚

好恐佈,咁都食得落口

From playlist Crazy Stuff

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Math Mornings at Yale: The Patterns in the Primes, with Andrew Granville

Math Mornings is a series of public lectures aimed at bringing the joy and variety of mathematics to students and their families. Speakers from Yale and elsewhere talk about aspects of mathematics that they find fascinating or useful. The talks will usually be accessible to students from 7

From playlist Math Mornings at Yale

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Andrew Granville - 2/3 The pretentious approach to analytic number theory

Andrew Granville - The pretentious approach to analytic number theory

From playlist École d'été 2014 - Théorie analytique des nombres

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Andrew Granville - 1/3 The pretentious approach to analytic number theory

Andrew Granville - The pretentious approach to analytic number theory

From playlist École d'été 2014 - Théorie analytique des nombres

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Mother's Day and Forgotten History

Ann Maria Reeves Jarvis wanted to aid the mothers of Taylor County, West Virginia. Her life story drove her daughter to champion the cause of making an official day to celebrate mothers. It is history that deserves to be remembered. This is original content based on research by The Histo

From playlist Script by HCW: Written by Ms History Guy

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The High Schooler Who Solved a Prime Number Theorem

In his senior year of high school, Daniel Larsen proved a key theorem about Carmichael numbers — strange entities that mimic the primes. “It would be a paper that any mathematician would be really proud to have written,” said one mathematician. Read more at Quanta Magazine: https://www.qua

From playlist Discoveries

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未来への挑戦~日本初 有人宇宙施設「きぼう」開発物語~

2009年に完成を迎えた日本初の有人宇宙施設「きぼう」日本実験棟。計画開始から約25年。その道のりには、幾多の難関が待ち受けていた。(JASRAC: V-0909422)

From playlist Scientific Discovery

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The local-global principle for stacky curves - Poonen - Workshop 1 - CEB T2 2019

Bjorn Poonen (Massachusetts Institute of Technology) / 22.05.2019 The local-global principle for stacky curves For smooth projective curves of genus g over a number field, the local-global principle holds when g = 0 and can fail for g = 1, as has been known since the 1940s. Stacky curve

From playlist 2019 - T2 - Reinventing rational points

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Molar Conversions: Grams to Number of Particles

Shows how to use molar conversions to convert from grams to moles and then to number of particles. You can see a listing of all my videos at my website, http://www.stepbystepscience.com

From playlist Chemistry Videos

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【水曜夜21時からLIVE】早稲田大学 早水桃子研究室 一般公開オフィスアワー 第2話(チャット付きver)【質問箱Q&A】

※ライブ配信のアーカイブ動画( https://youtu.be/5xXQ0DQ7-II )からチャットが消えてしまったのでチャット付きにした編集版をアップロードし直しました. ------------------------------------------------------------------------------------------ 早稲田大学理工学術院(基幹理工学部 応用数理学科)早水桃子研究室の生配信のアーカイブ動画です!先週に引き続き,水曜の夜9時からライブでお送りしました.第2回は研究紹介ではなく,質問箱やチャットに寄せられた色々な質問にお答

From playlist 一般公開オフィスアワー(2020年度ライブ配信のアーカイブ動画)

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Driving Downtown - Vancouver 4K - Canada

Driving Downtown - Vancouver BC Canada - Season 1 Episode 22. Starting Point: Granville St https://goo.gl/maps/zcJQRonhEBN2 . Vancouver, officially the City of Vancouver, is a coastal seaport city on the mainland of British Columbia, Canada. The 2011 census recorded 603,502 people in the

From playlist 1) Popular Cities

Related pages

Perfect number | Element (mathematics) | Complement (set theory) | Mathematics | Set (mathematics) | Deficient number | Abundant number | Number theory