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UNIVERZITET SVETOZAR MARKOVIĆ, KRAGUJEVAC

THE SVETOZAR MARKOVIĆ UNIVERSITY, KRAGUJEVAC

Zbornik radova

Collection of scientific papers of the Faculty of Science

 

Vol. 15 (1994)

 

 C O N T E N T S

 

MATHEMATICS  

Borislav Crstici

Sever S. Dragomir 

On certain inequalities on Jensen's type 7

A. F. Palistrant

A. M. Zamorzaev 

Two-dimensional and three-dimensional P-symmetry groups and their applications to study of multidimensional symmetry groups  15

Sever S. Dragomir

Nicoleta M. Ionescu 

On an inaequality of Tiberiu Popoviću (II) 21
Daniel Avraam Romano Generalizations of inverse limits of abelian groups with apartnesses . 27
Daniel Avraam Romano Decomposition of coequality relation 45
Slavik V. Jablan Edge bicolorings of connected graphs 53

Sever S. Dragomir

Dragoljub M. Milošević 

Two mappings in connection to Jensen's inequality 65
Nikola RosićMiroslav Vučković Generalization of a result of T. Pejović 75
Dragić Banković Equations over Boolean rings 81
PHYSICS  

Branislav Čabrić

Tomislav Pavlović

Božidar Žižić 

Crystallization of BaNi2II(PO4)2 where MII=Mg, Co or Ni.91
CHEMISTRY  

Ivan Gutman

Marija Stanković 

Cyclic conjugation in non-Kekulean benzenoid molecules 97
BIOLOGY  

Spasenija Karaman

Mirjana Stojanović 

Autecological analysis of Lumbricidae of Kragujevac environment 105

Milić Matović

Ljiljana Vujković 

Phenotype variability of spruce trees of (Picea abies L.) at the locality Paljika and its potential value in landscape architecture 115

Radomir Ognjanović

Aca Marković

Milivoje Milovanović 

The influence of mechanical control of weeds in wheat on amount and composition of admixtures in grain yield 121

Radomir Ognjanović

Aca Marković

Milivoje Milovanović 

Quantities and compositions of admixtures in wheat with review of weed seeds 131

Radomir Ognjanović

Aca Marković

Vladimir Veljović 

Investigation of weeds flora in small grains on territories of region Kraljevo 141

Milan N. Petronijević

Nataša D. Stojadinović

Milosav Kostić 

Effects of Cadmium on the activity of oxidative pentose pathway in rabbit erythrocytes and reticulocytes 153