Vol 12 (1998)

On Carlitz theorem for Bernoulli polynomials

Krystyna M. Bartz

9-13

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Cycles of rational mappings in algebraically closed fields of positive characteristics

Tadeusz Pezda

15-21

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On reduced rings and number theory

Jan Krempa

23-29

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On Pythagorean triangles

Andrzej Schinzel

31-33

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Additive conditions on sums of squares

Ivan Korec

35-51

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2-ranks of class groups of Witt equivalent number fields

Kazimierz Szymiczek

53-64

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Remarks to short RSA public exponents

Otokar Grošek, Karol Nemoga, Ladislav Satko

65-74

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Congruence of Ankeny-Artin-Chowla type modulo p^2

Stanislav Jakubec, Miroslav Laššák

75-91

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Clifford-Littlewood-Eckmann groups as orthogonal groups of forms of higher degree

Andrzej Sładek, Adam Wesołowski

93-103

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Generators of the Witt groups of algebraic integers

Alfred Czogała

105-121

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On the diophantine equation x_1x_2···x_n = h(n)(x_1 + x_2 +...+ x_n)

Jozsef Bukor, Péter Filakovszky, János T. Tóth

123-130

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Witt rings of infinite algebraic extensions of global fields

Krzysztof Kozioł, Mieczysław Kula

131-139

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Mod p logarithms log_{2}3 and log_{3}2 differ for infinitely many primes

Grzegorz Banaszak

141-148

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Sets of regular systems of divisors of a generalized integer

Štefan Porubský

149-156

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Prime periods of periodical P-additive functions

Stanislav Jakubec

157-160

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Density theorems for reciprocity equivalences

Thomas C. Palfrey

161-172

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The 2nd Czech and Polish Conference on Number Theory Cieszyn 1998. Problem session

173-174

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Vol 12 (1998):