Sommaire

An identity for the independence polynomials of trees.

Gutman, Ivan

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p. 19-23

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A property of canonical graphs.

Torgašev, Aleksandar

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p. 33-38

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Some results on graphs with at most two positive eigenvalues.

Petrović, Miroslav

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p. 39-50

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Note on a paper by H. L. Montgomery (Omega theorems for the Riemann zeta- function).

Ramachandra, K. ; Sankaranarayanan, A.

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p. 51-59

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Convergence of subseries of the harmonic series and asymptotic densities of sets of positive integers.

Powell, Barry J. ; Šalát, Tibor

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p. 60-70

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Tight semigroups.

Bogdanović, Stojan ; Ćirić, Miroslav

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p. 71-84

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Symmetric inverse α-areolar differences and α-interpolation. (Symmetrische inverse α-areoläre Differenzen und α- Interpolation.)

Čanak, Miloš

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p. 96-104

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Some inequalities of isoperimetric type concerning analytic and subharmonic functions.

Mateljević, M. ; Pavlović, M.

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p. 123-130

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On isomorphisms of L1 spaces of analytic functions onto ℓ1.

Pavlović, Miroslav

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p. 131-134

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Trace formula for nuclear perturbations of discrete nonselfadjoint operators.

Milinković, Darko

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p. 135-140

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The dual Steiner formula for convex compacta.

Dedić, Ljuban

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p. 152-158

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Symplectic and cosymplectic foliations on cosymplectic manifolds.

Chinea, Domingo ; de León, Manuel ; Marrero, Juan C.

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p. 163-169

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