# Balkan Journal of Geometry

and Its Applications

(BJGA)

## ISSN 1224-2780

Volume 4 (1999), No. 1

Electronic Edition

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### Contents

**K. Arslan, C. Ozgur,**

*On normal sections of Veronese submanifold*

pages: 1-8, AMS Subject Classification: 53C40

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**Ch.Christophoridou, A.Kobotis,**

*The characteristic elements of special nilpotent Lie algebras
of dimension ten*

pages: 9-18, AMS Subject Classification: 17B30

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**F.Defever, **

*Theory of semisymmetric conformally flat and biharmonic
submanifolds*

pages: 19-30, AMS Subject Classification: 53B20, 53B30, 53B50

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**I.Dobrescu, N.Ionescu-Pallas,
**

*Variational and conservative principles in Rosen's theory
of gravitation*

pages: 31-43, AMS Subject Classification: 83CXX

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**O.Dogaru, V.Dogaru, **

*Extrema constrained by C^k curves*

pages: 45-52, AMS Subject Classification: 49K99

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**B.Foreman, **

*Three-dimensional complex homogeneous complex contact
manifolds*

pages: 53-67, AMS Subject Classification: 53T58

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**I.E.Hirica, **

*Invariant operators on real and complex manifolds*

pages: 69-90, AMS Subject Classification: 53A55, 53B10, 53B20,
53B35

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**Gh.Ivan, **

*Strong morphisms of groupoids*

pages: 91-102, AMS Subject Classification: 20L13; 20L99; 18B40

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**H.S.Kim, Y. Pyo, **

*Complete minimal hypersurfaces in a locally symmetric
space*

pages: 103-115, AMS Subject Classification: 53C50

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**M.Matsumoto, **

*Conformally closed Finsler spaces*

pages: 117-128, AMS Subject Classification: 53B40

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**M.Toda, C.Udriste, **

*Optimal approximations on Riemannian manifolds*

pages: 135-144, AMS Subject Classification: 49F20, 92A27, 53B40

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**C. Udriste, M.Neagu,**

*Geometrical interpretation of solutions of certain PDEs*

pages: 145-152, AMS Subject Classification: 53C60, 49N45, 35R30

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*Volume sponsored by: *

POLITEHNICA UNIVERSITY OF BUCHAREST

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update: July 10, 2000**