SCIENTIFIC ABSTRACT LAPUSHINA, M.YA. - LARAREV, L.A.

• Document Type: CREST
• Collection: Scientific Abstracts
• Document Number (FOIA) /ESDN (CREST): CIA-RDP86-00513R000928630005-8
• Release Decision: RIF
• Original Classification: S
• Document Page Count: 100
• Document Creation Date: November 2, 2016
• Document Release Date: August 31, 2001
• Sequence Number: 5
• Publication Date: December 31, 1967
• Content Type: SCIENTIFIC ABSTRACT

LAPUSHIML, M.Ya.
Work of the department of intestinal Infections of the Sixth
14insk Polyclinic. Zdrav.Belor- 5 no.7:52-53 Jl 159-
(MIRA 12: 9)
1. Zaveduyushchaya kabinetom kishechn;ykh In-"ektsiy 6-y
polikliniki g.14inska.
(I1MSTI17,S--DNMSNS)

A M.K. (Ri ga); ;4nSHKA, K.K., (Riga)
Obsema 4dho of artificial earth satellites with a triaxial -
gaided camera. Biulosta.opt.nabl.isk.spat.2eme no.29125-7 10.
(H*,i(*)
1e Astronomicheska7a observatoriya Latviyikogo gosudarstvennogo
univeraiteta Im, Petra Stucbkie
(Artificial satellites-Tracking) (Astronmical photography)

M.t. -,Wg&);_ LUIUSHKA~ K.K. (Riga)
Electronic computer for automatic measurement and processing
of negative plates with the UINP-21 microscope. MuLbste. opto
nabl,iok.sput.Sem, no.2997-12 162. iMIU 16:2)
1. ABtronomicheakaya obserratoriya Latv-lyokogo gosudarst7ennogo
universitota Im. Petra Stuebkis
(Electronic computers)

LAPUSHKIN, A. D.
LAPUSHKIN, A. D. Front-line bases for the restoration of railroad property. Moskva,
Gos. transp. zhel-dor. izd-vo, 1944- 74 p. (50-48660)
TF85.L26

1-115
Lapushkin, A D 755.41
. IL3
Pri,venka materialov na skladakh zhelezUkh dorog ffcceptance of materii1s
at railroad warehoixs,~J
14oskva, Transzheldorizdat,, 1950.
330 p. Diagrs.., Tables*

VMS, D.A.; KOKHTXV, A.A.; ISLYA-NOV, V.A,; MALYNICH, T.J.; POVOLOTSKIY, L. I.;
RASKA OT. Y.M., inzhener; TOPORNIN, G.S.[deceased]; LAPUSHKIN, A.D..,
dotsent, retsensent; USPASSKIT, P.Pi, professor. rat ie-nz6if',-IMEAN~
GELISKIY, V.M., kandidat tekhnicheskikh nauk, retsenzent; REGIRER, Z.
L.. kandidat tekhnicheakikh nauk, retsenzent; SHAROV, M.Ta., kandidat
telthnicheskikh nauk, retsenzent; YURIYXV, M.G., inzhener, retsenzent;
LYUTIKOV, A.F., redaktor; MODEL', B.I., tekhnicheskiy redaktor.
[Manual on materials for the construction of locomotives and railroad
cars] Spravochnik po materialam dlia lokomotivo- i vagonostroeniia.
Pod obshchei red. V.M. Raskatova. Moskva, Goo. nauchno-tekhn. izd-vo
machino-stroit. lit-ry, 1956. 481 p.
(LocomotiveB-Construction) (Railroads-Cars-Construction)

IILWSW~W,. Audrey Dmitriyevich; LIVSHITS, Natan Yavelevich; KONMWHOV,
A.V,, red.-; MINA, G.-POP tekhn.red,
E.Supplying transportation construction with materials and
equipment] kateriallno-t4khnicheskoe onabzhanis transportnogo
otroitallstva. Moskva, Goo.transp.zhol-dor.izd-vo#-1959.
157 P. (MIRA 12:6)
(Transportation)

LEVIN, B.I.-, ANPILOGOV, R.G.; BOGATYRRV, A.F.; ~RYKIN, S.Y.; GOLIDW,
M.-S.; DAVYD~~V, G.Y.; ZADORIX, B.H.; Z INOV, A.K,;
A..D YJ=Y, T.Ii; XMTIYZV, V.I.; OGANRSOV, I.S.; FAMY.
-; L
N..I.; SIDDRIN, SOLDATOV, Te.G., c~bahchiy red,; KA4WSE3V,
I.A., red.; PBSKOVA, L.N., red.; IMTROY, P.A., tekhn.red-,-,
.[Manuel for studying the economics of construction in the
transportation industry] V pomoshchl isuchaiushchim ekonomiku
transportnogo stroitelletva. Moskva, Goe.transp.zhol-dor.
izd-vp,-1939. 271 P. (MM 12t7)
(Construction industry) (Transportation)

. LAYUSHKIN, D.M., elektromekhanik
Improved schematics for connecting railroad station intercommmication
networks. Avtom., telem.1 sviazi 6 no.509 YV 162. ("MA, -15-4)
1. Fayansovskaya distantsiya signalizatsii i d4yazi Yjoskovskoy
dorogi.
(Railroads-Comminication systems)

IAPUSHUNY D.M., elektromakhanik
Elimination of shortcomings in long-distance service apparatus.
Avtom,., telem. i sviaz' 6 no,'6:43 Je 162. (MM 15:7)
1. Fayansovskaya distantsiya signalizatsii i avyazi
Mookovskoy dorogi.
(Railroads-Elec#;inic equipment)
(Railroads-Communication systems)

/,I 1-9&sHklllv) Q, A -
TARAWV, I.I., inzhaner; 1APUSHM, G.A., inzhener.
Introduce modern technIques In the spinning Industry. Izobr. v SSSR
1 no.6:14-18 D '56. (mm io:4)
(Spinning machine-x7)

87lb5
16 5-L) 0 0 0 4" --~, cl 0 0 S/041/60/012/003/009/011
C111 C222
AUTHORs LaDushkin, I.T.
TITLEs On the Question on the Solution of Difference Approximations of
Biharmonic Equations According to the Method of Successive
Approximations
PERIODICALt Ukrainskiy matematicheskiy zhurnal, 1960, Vol. 12, No, 3t
PP. 346 - 349
TEXTt The author considers linear homogeneous operatorsff with an axial
symmetry which are applied to functions defined in the knot points i
-iu(A) - 7 d kU(A t Ak) (Ak is the increase of the coordinates of the
k
point A = (x9y)). Here it is 1) d k ' d(A + Ak d(A k) = d(-A k)
d.(Ak = d(-Ak) 2) dd/O 3) d k / 0 only for finitely many points (A+A k)'-
4) t Ak '%: (t xk .1 ~ Yk) 't A~ - (+ Xk ; 1 yk)' Let
(2) Su(A) - Z- a n nU(A) Z a, Z dku(A + A k)
n k
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C111/C222
On the Question on the Solution of Difference Approximationg of Biharmonic
Equations According to the Method of Successive Approximations
The functions exp, [i(,/,x + By)] are eigenfunctions of S ; the eigen-
values are A Z a n Z dk exp xk + flyk)]
n k
The difference approximations of the biharmond,c operator given in (Ref. 2)
have the form (2), e.g.
4 12
u 2 +
0 1 1 - 1)
20 -k M Uk - Z 7-0 uk (remainder term is missing,a r.
k-1 k=5 k=9
For usual successive approximations these formulas are inapplicable since
here the spectrum of S has negative eigenvalues the absolute value of
which is smaller than I . The author gives the following applicable
formula for a quadratic net t 20 24
25h4 A Au - 212u - 38 U 4 7. ~ 1-1 + 2 u + 0(h6
0 0 k k k
k=' 1 111=9 k~~21
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87145
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C1 1 1YO222
On the Question on the Solution of Difference Approximstiona of Biha:-monic
Equations According to the Method of Successive Approximations
(the numeration of the knots is given in figure 1)
Fig 1
22 10 1409 17 121
14 16 12 5 0
it 13 10" f. .9
15 7 4 B .16
23 1. 12 20 24
P11C. 1.
or for a triangular net s
12
h4.A,6u = Isu 4 U + 2
0 0 k Z Uk + r)(h
k-1 k-7
where the knots are numbered as in figure 2)
Card 3/+

87145
S104116010121003100910"
Clll~C222
On the Question on the Solution of Difference Approximations of Biharmonic
Equations According to the M.ethod of-Successive Approximations
Fig. 2
Pitc. 2.
It is pointed out that the approximations given in (Ref. 2) ban also be
used if they are submitted to some transformations.
There are 2 figures and 2 referencest 1 Soviet and 1 German.
EAbstracter's note : (Ref. 2) concerns Collatz, Numerical Treatment of
Differential Equations]
SUBMITTED: June 17, 1959
Card 4/4

LAPUSHKIN, I. -- T-.- -
Cand Phys-Math Sci - (diss) "Use of the finite differences method
in the solution of one class of boundary problems of the theory
of elasticity." Kiev, 1961. 8 DD; (Joint Academic Council- of
the Institutes of Mather,riatics, P~y'sics, and Metallophysics of
the Academy of Sciences Ukrainian SSR); 200 copies; price not
given; bibliography on DD 7-8 (11 entries); (KL, 5-61 sup, 173)

LA-PUSHKIN, I.T.
- - ------
Existence and uniqueness of solutions of a c'lass of bounda--T
value problem in the the*Fy of elasticity. Ukr.mat.zhu--. 13
no.2:231.-235 -61. (MIRA 14,- 8' )
(Boundaxy value problems) (Elasticity)

5- L) o
AUTHOR:
TITLE:
PERIODICAL:
28699
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3 1 Oj 4 .5-u r3 D274/D301
Lapushkin, I.T.
The method of successive approximations as applied
to solving difference approximations of biharmonic
equations
Akademiya nauk UkrSSR. Dopovidi, no. 3, 1961, 278-
281
TEXT: An approximation to the biharmonic operator AAu is found
for equilateral-triangle nets. Using square- and equilaterial-tri-
snlge nets,, problems relating to the buckling of rigidly fixed
lates were solved by the electronic computers CEAM (SEW and Y'WB
yyiv). The biharmonic equation
U
AAU (X,Y) - _Rx,y)
is given in the bounded domain G. The domain G is replaced by the
net region Gh by means'of square or equilateral-triangle nets. The
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The method of successive ... D274/D301
normal derivatives of the boundary conditions are approximated by
unilateral or central differences. Only the values of the function
at the nodal points are considered; 46u is approximated by differ-
ences. Setting
TG.hu (A) an ~; d(Akn) u (A + Akn), (3)
where Akn are the coordinate-increments on passing from nodal point
A to the neighboring nodal point (A +.Ak,,), one obtains a system of
m difference equations with m unknowns:
u(A) .- TG.I~i(A) + f (A), (4)
where the linear operator TG.h is a symmetrical matrix with elements
and (Akn) (an is either +1 or -1). Further, only almost-periodic
functions are considered. The eigenfunctions of the operator Th
are found. The eigenvalues of the operators TG.h lie in the inter-
val
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28699
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The method of successive... D274/D301
-'f h < - 7G.h -