Re: Kho^ng co^ng ba(`ng.(1)

["Nguyen Tien Zung" <tienzung@darboux.math.univ-montp2.fr>]

Hi anh Hung et al.

Chuye^.n kho^ng co^ng ba(`ng tre^n ddo+`i thie^'u gi`, nhu+ng ne^'u
vi` the^' ma` anh la.i tend to have regionalism thought thi` uo^?ng qua'.
Thie^?n nghi~ ddo' kho^ng pha?i la` ca'ch gia?i quye^'t va^'n dde^`.
Chu'ng ta ne^n ddoa`n ke^'t vo+'i nhau thi` to^'t ho+n, right?

Ddo.c thu+ anh to^i co' va`i tha('c ma('c nho? sau, mong ddu+o+.c
sa'ng to?:

- Tie^u chua^?n cho.n HS ddi ho.c o+? U'c o+? VN la` the^' na`o? Co'
theo kie^?u thi dda^'u, qua 1 ban khoa ho.c trung gian xe't duye^.t, ai
ho^` so+ khoa ho.c to^'t ho+n thi` tha('ng, hay la` pha^n bo^' theo kie^?u
"chi? tie^u" mo^~i vu`ng (tru+o+`ng) ddu+o+.c bao nhie^u? 

- Chuye^.n ho.c bo^?ng elicos gi` ddo', ne^'u ddu'ng la` dde^? da`nh
cho mie^`n nu'i nhu+ng la.i ro+i va`o tay HS Hanoi la` chi'nh, thi`
kho^ng pha?i la` chuye^.n "pha^n bie^.t ba('c nam" ma` co' le~ la`
chuye^'n tham nhu~ng, tuy` tie^.n thi` ddu'ng ho+n? Ai gio?i cha.y
ho+n thi` ddu+o+.c ho.c bo^?ng ?

- Cu~ng vo+'i y' tu+o+?ng tre^n, co' the^? la` su+. pha^n ca'c ho.c bo^?ng
kha'c cu~ng co' bi. su+. quen bie^'t ... a?nh hu+o+?ng nhie^`u, ai co'
quan he^. ca' nha^n to^'t ho+n thi` ddu+o+.c? Ne^'u the^' thi` cu~ng kho^ng
di'nh da'ng gi` dde^'n pha^n bie^.t ba('c nam.

Theo to^i qu'i ngu+o+`i o+? virtue cu?a ho. chu+' kho^ng pha?i o+? ho.
xua^'t 
su+'  tu+` dda^u. Anh tha(?ng tha('n ne^u va^'n dde^`, cu~ng la` dda'ng
qui'.

Cheers, Zung