Cov txheej txheem:
- Leej twg nrhiav tau manifolds?
- Leej twg tsim qhov sib txawv geometry?
- Dab tsi yog qhov sib txawv geometry manifold?
- Leej twg yog tus lav rau atlas lej?
![Leej twg invented txawv manifold? Leej twg invented txawv manifold?](https://i.boatexistence.com/preview/questions/18769933-who-invented-differentiable-manifold-j.webp)
Video: Leej twg invented txawv manifold?
![Video: Leej twg invented txawv manifold? Video: Leej twg invented txawv manifold?](https://i.ytimg.com/vi/vI1KWwmcdv4/hqdefault.jpg)
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Ib lub ntsiab lus niaj hnub ntawm 2-dimensional manifold tau muab los ntawm Hermann Weyl hauv nws phau ntawv xyoo 1913 ntawm Riemann nto.
Leej twg nrhiav tau manifolds?
Poincaré pioneered txoj kev kawm ntawm peb-dimensional manifolds thiab tsa ib lo lus nug tseem ceeb txog lawv, niaj hnub no hu ua Poincaré conjecture. Tom qab ze li ib puas xyoo, Grigori Perelman tau ua pov thawj qhov kev xav ntawm Poincaré (saib qhov kev daws teeb meem ntawm Poincaré qhov kev xav).
Leej twg tsim qhov sib txawv geometry?
Kev Tsim Kho Ntawm Qhov Sib Txawv Ntawm Geometry
Differential geometry tau tsim los ntawm Gaspard Monge thiab C. F. Gauss nyob rau hauv pib ntawm lub xyoo pua 19th. Kev koom tes tseem ceeb tau ua los ntawm ntau tus kws lej thaum xyoo 19th., suav nrog B. Riemann, E. B.
Dab tsi yog qhov sib txawv geometry manifold?
Hauv kev ua lej, qhov sib txawv ntawm qhov sib txawv (tseem sib txawv manifold) yog ib hom manifold uas zoo ib yam hauv zos txaus rau qhov chaw vector kom tso cai rau ib tus ua lej. Ib qho manifold tuaj yeem piav qhia los ntawm cov ntawv sau, tseem hu ua atlas.
Leej twg yog tus lav rau atlas lej?
Tobias Mayer (1723-1762) yog tus kws qhia lej German thiab astronomer tus kheej. Ua haujlwm ua tus kws sau ntawv hauv xyoo 1750, nws tau sau thiab luam tawm daim ntawv qhia tseeb tshaj plaws ntawm lub hli tom qab ntawd muaj.
Pom zoo:
Leej twg invented chorded keyboard?
![Leej twg invented chorded keyboard? Leej twg invented chorded keyboard?](https://i.boatexistence.com/preview/questions/18671429-who-invented-chorded-keyboard-j.webp)
Lub Kaum Ob Hlis 1968, Douglas C. Engelbart tau qhia lub ntiaj teb rau ob lub khoos phis tawj tshiab tshiab ntawm nws tus kheej tsim . Yuav muaj pes tsawg tus yuam sij chorded keyboard? Chording keyboards kuj tau siv los ua cov khoom siv tau yooj yim tab sis ob txhais tes tawm tswv yim rau qhov tsis pom kev (xws li ua ke nrog lub ntsej muag zoo nkauj lossis lub suab sib txuas).
Leej twg invented ius sanguinis?
![Leej twg invented ius sanguinis? Leej twg invented ius sanguinis?](https://i.boatexistence.com/preview/questions/18674876-who-invented-ius-sanguinis-j.webp)
Ius sanguinis yog ib qho kev lig kev cai niaj hnub tsim los ntawm Fabkis, thiab nws tau nthuav dav thoob plaws teb chaws Europe thaum lub sijhawm cuaj-xyoo pua . Yog USA jus soli or jus sanguinis? Lwm txoj kev hu ua jus sanguinis yog thaum ib tug neeg tau txais kev ua pej xeem los ntawm lawv niam lawv txiv lossis poj koob yawm txwv.
Vim li cas cov haujlwm txawv txawv tau them nyiaj txawv?
![Vim li cas cov haujlwm txawv txawv tau them nyiaj txawv? Vim li cas cov haujlwm txawv txawv tau them nyiaj txawv?](https://i.boatexistence.com/preview/questions/18681939-why-different-professions-are-remunerated-differently-j.webp)
Tam sim no kuj muaj qhov sib txawv ntawm cov hauj lwm, vim qhov sib txawv ntawm qhov kev thov thiab kev muab cov neeg ua hauj lwm rau cov hauj lwm lossis cov hauj lwm. Cov kev sib txawv no tshwm sim feem ntau vim yog qhov sib txawv ntawm qhov kev kawm lossis kev cob qhia yuav tsum tauthiab nyob rau hauv qhov kev ntshaw ntawm txoj haujlwm nws tus kheej .
Cov neeg txawv txawv txawv li cas ntawm cov phooj ywg?
![Cov neeg txawv txawv txawv li cas ntawm cov phooj ywg? Cov neeg txawv txawv txawv li cas ntawm cov phooj ywg?](https://i.boatexistence.com/preview/questions/18722875-how-do-consequential-strangers-differ-from-friends-j.webp)
Cov neeg txawv txawv txawv li cas ntawm cov phooj ywg? Lawv suav nrog cov neeg los ntawm ntau yam kev ntseeg, haiv neeg, hnub nyoog, thiab kev xav nom tswv. Nqe lus twg hais txog tus kheej yog qhov tseeb? Tus neeg laus tus cwj pwm tuaj yeem cuam tshuam los ntawm cov ntsiab lus .
Rau cov roj zoo tagnrho uas qhov sib txawv yog qhov sib txawv ntawm qhov sib txawv?
![Rau cov roj zoo tagnrho uas qhov sib txawv yog qhov sib txawv ntawm qhov sib txawv? Rau cov roj zoo tagnrho uas qhov sib txawv yog qhov sib txawv ntawm qhov sib txawv?](https://i.boatexistence.com/preview/questions/18751842-for-an-ideal-gas-which-variables-are-inversely-proportional-j.webp)
Boyle txoj cai hais tias siab (P) thiab ntim (V) yog qhov sib npaug. Charles txoj cai hais tias ntim (V) thiab qhov kub thiab txias (T) ncaj qha proportional . Txoj cai roj twg yog qhov sib npaug sib npaug? Rau qhov loj ntawm cov roj zoo tagnrho khaws cia ntawm qhov kub thiab txias, siab thiab ntim yog qhov sib npaug.