2015Asian-European Journal of MathematicsRequires access

On Ramanujan's general theta function and a generalization of the Borweins' cubic theta functions

Chandrashekar Adiga, Nasser Abdo Saeed Bulkhali

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Abstract

The Borwein brothers have introduced and studied three cubic theta functions. Many generalizations of these functions have been studied as well. In this paper, we introduce a new generalization of these functions and establish general formulas that are connecting our functions and Ramanujan's general theta function. Many identities found in the literature follow as a special case of our identities. We further derive general formulas for certain products of theta functions.

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What this paper is about

The Borwein brothers have introduced and studied three cubic theta functions. Many generalizations of these functions have been studied as well. In this paper, we introduce a new generalization of these functions and establish general formulas that are connecting our functions and Ramanujan's general theta function. Many identities found in the literature follow as a special case of our identities. We further derive general formulas for certain products of theta functions.

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Available abstract

The Borwein brothers have introduced and studied three cubic theta functions. Many generalizations of these functions have been studied as well. In this paper, we introduce a new generalization of these functions and establish general formulas that are connecting our functions and Ramanujan's general theta function. Many identities found in the literature follow as a special case of our identities. We further derive general formulas for certain products of theta functions.

Key concepts: Ramanujan theta function, Ramanujan's sum, Theta function, Generalization, Mathematics, Pure mathematics, Ramanujan tau function, Algebra over a field

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