2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Ib yam khoom tseem ceeb ntawm cov khub sib txuas yog uas lawv txwv tsis pub sib npaug ntawm cov pawg, thiab qhov no yog qhov peb tau txais hauv Galois txoj kev xav thiab algebraic geometry piv txwv saum toj no: thawj khub sib txuas yog qhov sib npaug los ntawm lub hauv paus theorem ntawm Galois txoj kev xav, thiab ob khub sib txuas txwv tsis pub muaj qhov sib npaug …
Vim li cas cov kab ke sib txuas tseem ceeb?
Cov cuab yeej tseem ceeb tshaj plaws ntawm kev sib txuas yog lawv qhov txuas ntxiv: txhua qhov kev ua haujlwm uas muaj sab laug sab xis (thiab yog li ntawd yog ib qho kev sib txuas sab xis) yog txuas ntxiv (piv txwv li kev mus nrog txwv hauv qeb theoretical kev xav); txhua lub luag haujlwm uas muaj txoj cai adjoint (thiab yog li ntawd yog sab laug adjoint) yog sib txuas (piv txwv li commutes nrog …
Puas yog adjoint functions tshwj xeeb?
Txoj kev sib txuas sab laug lossis sab xis txuas mus rau lub luag haujlwm (Def. 1.1), yog tias muaj, yog qhov tshwj xeeb mus rau ntuj isomorphism. Pov thawj. Piv txwv li tus Functor L:? →? tau muab, thiab peb tab tom thov rau qhov tshwj xeeb ntawm nws txoj cai adjoint, yog tias nws muaj.
Puas yog sab laug adjoint tshwj xeeb?
A sab laug adjoint functionctor muaj a cim txoj cai adjoint mus rau tshwj xeeb natural isomorphism.
hom teeb yog dab tsi?
Nyob rau hauv lej, tshwj xeeb hauv qeb theory, hom-sets, i.e. teeb tsa ntawm morphisms ntawm cov khoom, ua rau muaj qhov tseem ceeb rau pawg ntawm cov khoom. Cov Functors no hu ua hom-functors thiab muaj ntau daim ntawv thov nyob rau hauv qeb txoj kev xav thiab lwm ceg ntawmlej.
Pom zoo:
Vim li cas kev taug qab ntawm cov nqaij tseem ceeb rau cov neeg siv khoom?
Nws yog ib qho tseem ceeb heev los qhia rau koj cov neeg siv khoom kom paub tseeb tias koj tau cog lus rau muab zaub mov tsis muaj kab mob uas ua rau cov zaub mov muaj mob thiab tsis muaj kab mob xws li mycotoxins, hlau hnyav, dioxins thiab PCBs.
Vim li cas thiaj siv cov khoom siv pseudo tseem ceeb?
Pseudocritical txoj cai muab a txhais tau tias txiav txim siab txo cov khoom sib tov kom cov khoom xyaw ntshiab sib xws hauv cov xeev kev sib raug zoo yuav raug siv los kwv yees cov khoom sib xyaw. Pseudo tseem ceeb yog dab tsi? 2.1 Taw qhia.
Dab tsi yog qhov tseem ceeb thiab vim li cas nws tseem ceeb los txheeb xyuas koj qhov tseem ceeb?
Qhov tseem ceeb yuav coj koj hauv kev txiav txim siab hauv lub neej thiab ua rau koj taug qab. Qhov tseem ceeb tshaj plaws, qhov tseem ceeb tshaj plaws yuav ua rau koj ntseeg siab hais tias "tsis yog." Lawv pab koj txheeb xyuas qhov xav tau tiag tiag hauv koj lub neej, piv rau lwm tus xav tias tseem ceeb.
Vim li cas cov khoom siv viav vias hu ua cov khoom sib sib zog nqus?
Ib tug viav vias tivthaiv yog hais tias yog ib tug sib sib zog nqus Cheebtsam vim nws sau tag nrho nyob rau hauv Java thiab ua cov theem siab zaub ua hauj lwm nws tus kheej, es tsis txhob cia siab rau cov code muab los ntawm koj lub computer.
Vim li cas cov ntaub ntawv sib txuas lus tseem ceeb?
Cov ntaub ntawv sib tham sib taw qhia sawv cev rau ntsuas ntsuas kom ntau npaum li cas - lossis tsawg dua peb yuav pom ob qhov xwm txheej tshwm sim, muab lawv tus kheej qhov tshwm sim, thiab txheeb ze rooj plaub uas ob leeg muaj kev ywj pheej.
