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Displaying 121 – 140 of 150

The connection between quadratic forms and the extended modular group

Ahmet Tekcan, Osman Bizim (2003)

Mathematica Bohemica

In this paper some properties of quadratic forms whose base points lie in the point set $F_{\bar{Π}}$ , the fundamental domain of the modular group, and transforming these forms into the reduced forms with the same discriminant $Δ < 0$ are given.

The cubic congruence $x^{3} + a x^{2} + b x + c \equiv 0 (mod p)$ and binary quadratic forms $F (x, y) = a x^{2} + b x y + c y^{2}$ . II.

Tekcan, Ahmet (2010)

Acta Universitatis Apulensis. Mathematics - Informatics

The expansion of $\prod_{k = 1}^{\infty} (1 - q^{a k}) (1 - q^{b k})$

Zhi-Hong Sun (2008)

Acta Arithmetica

The imaginary quadratic fields of class number 4

Steven Arno (1992)

Acta Arithmetica

The Nullstellensatz for real coherent analytic surfaces.

F. Broglia, F. Pieroni (2009)

Revista Matemática Iberoamericana

The number of representations by sums of squares and triangular numbers.

Lam, Heung Yeung (2007)

Integers

The representation of one quadratic form by another in valuated fields

McCarthy, Paul J. (1955)

Portugaliae mathematica

The Stufe of Number Fields.

Ian G. Connell (1972)

Mathematische Zeitschrift

Three classical results on representations of a number.

Hirschhorn, Michael D. (1999)

Séminaire Lotharingien de Combinatoire [electronic only]

Über Darstellungsanzahlen von Primzahlen durch Quadratsummen.

Hans Petersson (1959)

Mathematische Zeitschrift

Über definite Polynome

A. Hurwitz (1913)

Mathematische Annalen

Über die Darstellung definiter binärer Formen durch Quadrate

Edmund Landau (1903)

Mathematische Annalen

Über die Darstellung definiter Funktionen durch Quadrate

Edmund Landau (1906)

Mathematische Annalen

Über die Komposition der quadratischen Formen.

A. Hurwitz (1923)

Mathematische Annalen

Ueber die Zahlentheorie der Quaternionen

A. Hurwitz (1896)

Nachrichten von der Gesellschaft der Wissenschaften zu Göttingen, Mathematisch-Physikalische Klasse

Uniform bounds for Fourier coefficients of theta-series with arithmetic applications

Valentin Blomer (2004)

Acta Arithmetica

Uniform denominators in Hilbert's Seventeenth Problem.

Bruce Reznick (1995)

Mathematische Zeitschrift

Universality of a non-classical integral quadratic form over ℚ(√5)

Jesse Ira Deutsch (2009)

Acta Arithmetica

Untersuchungen ueber die Summe von Quadraten [Book]

Rudolf Lipschitz (1886)

Variation of the number of lattice points in large balls

Maxim M. Skriganov, Alexander V. Sobolev (2005)

Acta Arithmetica

Currently displaying 121 – 140 of 150

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