## Glasnik Matematicki, Vol. 18, No.1 (1983)

### Contents

- G. Malle,
*A homotopy theory for graphs*, (3-25)

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- M. Petrovic,
*Spectra of some operations on infinite
graphs*, (27-33)

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- G. Czedli and L. Klukovits,
*A note on tolerance of
idempotent algebras*, (35-38)

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- M. Arapovic,
*Characterization of the 0-dimensional
rings*, (39-46)

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- M. Arapovic,
*The minimal 0-dimensional overrings of
commutative rings*, (47-52)

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- M. Arapovic,
*On the embedding of a commutative ring into
0-dimensional commutative ring*, (53-59)

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- M. Arapovic,
*Approximation theorems for fields and
commutative rings*, (61-66)

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- A. Cedilnik,
*On Banach algebras without zero
divisors*, (67-69)

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- M. Polonijo,
*Totally symmetric **n*-quasigroups
which satisfy the three symmetries theorem, (71-76)

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- J. E. Pecaric,
*On the Petrovic inequality for convex
functions*, (77-85)

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- Z. Lipecki,
*Completion of additive set functions with
values in a uniform semigroup*, (87-90)

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- W. Jarczyk,
*On linear functional equations in the
determinate case*, (91-102)

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- J. Vukman,
*A characterization of real and complex Hilbert
space*, (103-106)

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- Gy. Szabo,
*Some functional equations related to
quadratic functions*, (107-118)

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- Z. Gajda,
*On **H*-smooth and *H*-convex sets
in linear spaces, (119-131)

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- R. Herrmann,
*Closed graphs on convergence spaces*,
(133-140)

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- D. S. Jankovic,
*On functions with α-closed graphs*,
(141-148)

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- J. Tong,
*On the separation axiom **R*_{0},
(149-152)

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- J. Swart,
*On the equivalence of some properties weaker
than compactness*, (153-155)

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- Q. Haxhibeqiri,
*The exact sequence of a shape
fibration*, (157-177)

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- B. Guljas,
*Newton's method and round-off errors*,
(179-185)

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- M. Megan,
*On stability of controlled systems in Banach
spaces*, (187-201)

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*Supplement (Prilozi)*, (203-215)

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