Re: Ve^` vu. GS Tuye^'n

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

Hi ca'c ba'c

DDie^?m qua 9 ba\i ba'o cu?a o^ng Tuye^'n qua Math. Reviews, to^i tha^'y
nhu+ sau:

1 ba\i dda(ng o+? VN, 6 trang, ba(\ng tie^'ng Vie^.t na(m 82

1 ba\i o+? Poland ba(\ng tie^'ng Anh, 3 trang, na(m 80

7 ba\i dda(ng o+? Grusi (tra'i la.i vo+i' ca'c ta.p chi' lo+'n cu?a LX,
ca'c ta.p chi' Grusi na\y 
kho^ng co' di.ng ra tie^'ng Anh va\ co' le~ ngoa\i LX cu~ kho^ng thu+
vie^.n the^' gio+'i
na\o co').  Trong 7 ba\i ddo' chi? co' 1 ba\i da\i 30 trang la\ ba\i do
NHVH review, ca'c
ba\i co\n la.i 3-4 trang.

Trong 7 ba\i dda(ng o+? Grusi thi\ 4 ba\i dda(ng nhu+~ng na(m 76-77 ve^\
cohomologies
and extensions of monoids (tui kho^ng bie^'t tie^'ng Vie^.t la\ gi\). 
To^i doa'n 4 ba\i na\y tu+o+ng u+'ng vo+'i lua^.n a'n PTS cu?a o^ng
Tuye^'n. 
Ba\i o+? Balan cu~ng ve^\ monoids co\n ba\i o+? VN ve^\ quasimodules.

3 ba\i sau cua? o^ng Tuye^'n dda(ng o+? Grusi ca'c na(m 87,88,92, ve^\
cohomology of
alternating groups. Theo nhu+ reviewer ba\i na(m 88 vie^'t thi\ hai ba\i
ca'c na(m 87,88 chi?
la\ annouce of results (i.e. vie^'t to'm ta('t ke^'t qua?, kho^ng chu+'ng
minh). Nhu+ va^.y
ba\i na(m 92 co' the^? hie^?u la\ ba`i chu? lu+.c cu?a o^ Tuye^'n ve^\
hu+o+'ng na\y,
vo+'i 30 trang dde^? tri\nh ba^\y ke^'t qua? va\ chu+'ng minh. Ba ba\i ba'o
na\y co' the^?
coi la\ i't lie^n quan dde^'n 6 ba\i ba'o tru+o+'c cu?a o^ng Tuye^'n, vo+'i
dde^\ ta\i kha'c.

Ca^u ho?i: lua^.n a'n TS cu?a o^ng Tuye^'n tu+o+ng u+'ng vo+'i ca'c ba\i
ba'o na\o?
Tra? lo+\i (subjective): 3 ba\i ba'o cuo^'i.
Vi\ sao: 1) 3 ba\i ddo' tru\ng tho+i\ ddie^?m o^ Tuyen la\m TTS cao ca^'p
o+? LX.
2) Lua^.n a'n TS kho^ng pha?i la\ to^? ho+.p cu?a nhie^\u ke^'t qua? nho?
(i.e. 3 Ph.D. theses don't make a Dr.Sc. thesis), ma\ pha?i la\ 1 ke^'t
qua? lo+'n trong
1 hu+o+'ng na\o ddo', nhu+ va^.y ne^'u o^ Tuyen co' go^.p ca? ca'c ba\i
tu+\ nhu+~ng na(m
70 thi\ ca'c ba\i ddo' cu~ng kho^ng the^? coi la\ chu? lu+.c.

Ca^u ho?i: vi\ sao o^ Tuyen ba?o ve^. ddu+o+.c? 
Tra? lo+\i: Ne^'u coi ba\i ba'o na(m 92 la\ ba\i chu+a' nhie^\u ke^'t qua?
hay, thi\ o^
Tuyen co' the^? ba?o ve^. (Ngoa\i ra, o^ng ta co' the^? "hu+~u nghi." vo+'i
ho^.i ddo^\ng ba?o
ve^.  [theo tui hie^?u o^ Tuye^'n khi he^'t ha.n TTS cao ca^'p o+? Tbilisi
kho^ng ba?o ve^. ddu+o+.c,
sau ddo' xin ba?o ve^. trong 1 chuye^'n du+. ho^.i nghi.])

Theo ddie^?o ba'o nhu+ tre^n thi\ ba\i na(m 92 la\ ba\i ma^'u cho^'t. 

Xin lu+u y' la\ mo^~i ba\i cu?a o^ng Tuye^'n co' 1 reviewer kha'c nhau 
va\ toa\n la\ "Ta^y" (tru+\ NHVH), tru+\ o^ng
Artamonov na\o ddo' co' review ba\i o^ng Tuyen 2 la^\n, va\ ba\i dda(ng
tie^'ng Vie^.t
thi\ reviewer kho^ng ky' te^n ma\ la^'y abstract la\m review. Chuye^.n o^
NHVH la\m
review ba\i cuo^'i cu?a o^ Tuyen kho' co' the^? coi la\ do "cho+i xo?" cu?a
ai, ma\
la\ nga^~u nhie^n. O^ng Hung vo+'i o^ Tuyen cu~ng kho' the^? coi la\ cu\ng
cho^~,
vi\ o^ng Hu+ng o+? HN va\ hay ddu+o+.c mo+\i ddi dda^y ddi ddo' la\m toa'n
(lu'c nha^.n review ba\i o^ng Tuyen thi\ ddang o+? Spain), co\n o^ Tuyen
o+? Hue^'
va\ kho^ng hie^?u co' Ta^y na\o mo+\i bao gio+\ chu+a? Ne^'u ba^y gio+\ 1
te^n Me~o
review ba\i cu?a 1 te^n Me~o kha'c o+? ca'ch 200 km thi\ ca'c ba'c co' cho
ra(\ng chu'ng
"xo? nhau" kho^ng ?!

(BTW, may be i'm wrong, but in the instructions of AMS for reviewers, there
is a phrase
like "you may return the paper to the AMS, and may indicate another
reviewer for it",
but nothing about "advising not to review this paper". I think AMS wants
*every* paper
to be reviewed).

Anh AiViet may keep his opinion that Mr. Hung is tactless or reckless in
writing such a review, but
there is one point that I hope you agree: the review was very informative,
and without which
people would not know about the "science" of Mr. Tuyen.

Theo ba'o chi' VN dda(ng, o^ng Tuye^'n co^ng nha^.n nhu+~ng gi\ o^ Hu+ng
vie^'t trong review la\
ddu'ng, ma\ chi? tranh ca~i ve^\ vie^.c interpret review ddo' the^' na\o.
Nhu+~ng ngu+o+\i
be^nh o^ Tuyen (ra^'t tie^'c trong ddo' co' ca? ba\ Hu+o+ng na\o ddo'
ddu+o+.c bo^. giao cho phu.
tra'ch ddie^\u tra vie^.c na\y - sao cu\ng te^n Hu+o+ng ma\ co' ngu+o+\i
thi\ la.i ra^'t de^~ thu+o+ng
nhu+ chi. Hu+o+ng tre^n VNSa co' ng\ thi\ la.i cha? de^~ thu+o+ng gi\) thi\
no'i y' dda^y chi? la\
tranh ca~i ve^\ khoa ho.c giu+~a ca'c nha\ chuye^n mo^n.

Bo+?i va^.y to^i xin to'm ta('t la.i review ma\ anh Tha('ng dda~ post ho^m
tru+o+'c ba(\ng tie^'ng Vie^.t
(va\ bo? qua ca'c ky' hie^.u toa'n) cho mo.i ng\ pha'n xe't. 

Ba\i ba'o go^\m 4 pha^\n ... Ke^'t qua? chi'nh cu?a hai pha^\n dda^\u,
ddi.nh ly' 2.5, la\ 1 co^ng thu+'c
cu. the^?... Ra^'t tie^'c, co^ng thu+'c na\y la\ thuo^.c ve^\ Huynh Mui
trong 1 ba\i ba'o
dda(ng o+? Math. Z. [chu' thi'ch: 1 to+\ ba'o cu?a Ddu+'c pho^? bie^'n
the^' gio+'i ] na(m 1986 , 
i't ra la\ trong tru+o+\ng ho+.p p>2. Co^ng thu+'c (9) o+? pha^\n 1, 
die^?m chi'nh trong chu+'ng minh ddi.nh ly' 1.8 cu~ng thuo^.c ve^\ Huynh
Mui 
(dda(ng na(m 1975 o+? ta.p chi' J. Fac. Sc. Tokyo [cu~ng la\ 1 ta.p chi'
pho^? bie^'n the^' gio+'i]). 

Trong pha^\n 3 ... co' co^ng thu+'c (11) va\ ca? chu+'ng minh cu?a no'
trong ca'c trang 39-40
[baì o^ Tuyen go^\m ca'c trang 18-47] cu~ng thuo^.c Huynh Mui (ba\i na(m 86
ne^u tre^n)

Pha^\n 4 .... Pha^\n na\y ddu+o+.c sao la.i tu+\ mo^.t so^' ddoa.n cu?a 3
ba\i ba'o cu?a reviewer
[tu+'c o^ Hu+ng] (2 ba`i trong C.R.A.S  [ba'o cu?a vie^.n ha\n la^m Pha'p]
ca'c na(m
83, 88, 1 ba\i trong Pacific Journal [ba'o cu?a My~ - ma^'y ba'o na\y cu~ng
co' o+? ha^\u he^'t
ca'c thu+ vie^.n to^'t] na(m 90). Thu+.c ra reviewer co' nghie^n cu+'u ...
va\ nghi~ ra(\ng ta'c gi?a
dda'ng nhe~ pha?i chu+'ng minh la\ ... nhu+ng ta'c gi?a la.i kho^ng la\m
ddie^\u ddo' ma\ chi?
kha(?ng ddi.nh cho tru+o+\ng ho+.p ... Nhu+ va^.y co' mo^.t so^' ddie^?m
kho^ng ro~ ra\ng trong
Pha^\n 4 na\y.... Cha? ha.n nhu+ ng\ ta co' the^? ho?i ta.i sao ddie^\u
kie^.n q la\ so^' le? la.i
kho^ng ddu+o+.c du\ng trong chu+'ng minh ca'c ddi.nh ly' 4.1, 4.4, 4.5. Ng\
ddo.c co' the^?
xem ba\i cu?a reviewer (na(m 88) dde^? ti\m lo+\i gia?i dda'p ta.i sao co'
gia? thuye^'t ddo'.
Mo^.t so^' bie^?u thu+'c toa'n cu~ng ddu+o+c du\ng ma\ kho^ng co' ddi.nh
nghia~ la\ gi\. 

Ddo.c thi\ tha^'y ro~ ngay la\ i't ra la\ ca'c ke^'t qua? chi'nh cu?a 3
trong 4 pha^\n 1,2,4 la\
ddi "mu+o+.n" cu?a Huynh Mui va\ NHVH. Pha^\n 3 cu~ng kho^ng tra'nh kho?i
"mu+o+.n"
tuy chi? la\ "mu+o+.n 1 khu'c". Pha^\n 4 thi\ tha^.m te^. dde^'n mu+'c
"copy sai". Ca'c ba\i cu?a
o^ Huynh Mui dda(ng tru+o+'c khi o^ Tuyen gu+?i dda(ng ba\i dde^'n ma^'y
na(m, kho^ng the^?
no'i la\ "cu`ng phu+o+ng pha'p ne^n cu\ng ke^'t qua?". Ddi la\m la.i ca'i
ngu+o+\i kha'c dda~ co^ng
bo^' tru+o+'c ma^'y na(m (o+? 1 ta.p chi' pho^? bie^'n chu+' kho^ng pha?i
o+? xo' xi?nh gi\) thi\
may ra go.i la\ "pha't hie^.n la.i ke^'t qua?" chu+' kho^ng the^? vo+
tha\nh "la\m ra ke^'t qua?".

Ba'c AiViet muo^'n cha(.t dda^\u Copany co' muo^'n cha(.t dda^\u ai nu+a~
kho^ng?

Z