Rings all of whose additive group endomorphisms are left multiplications by Michael I. Rosen, Oved shisha

“…Motivated by Cauchy's functional equation f(x+y)=f(x)+f(y), we study in §1 special rings, namely, rings for which every endomorphism f of their additive group is of the form f(x)≡ax. …”
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CROSS PRODUCT OF IDEAL FUZZY SEMIRING by Saman Abdurrahman

“…If one of the axioms in the ring, namely the inverse axiom in the addition operation, is omitted, it will produce another algebraic structure, namely a semiring. …”
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DERIVATION ON SEVERAL RINGS by Abdiel Bellamy Thomas, Nikken Prima Puspita, Fitriani Fitriani

“…The purpose of this paper is to show some of the derivation properties on several rings, namely divisor rings, cartesian product rings, and factor rings. …”
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True-Randomness and Pseudo-Randomness in Ring Oscillator-Based True Random Number Generators by Nathalie Bochard, Florent Bernard, Viktor Fischer, Boyan Valtchanov

“…The paper deals with true random number generators employing oscillator rings, namely, with the one proposed by Sunar et al. in 2007 and enhanced by Wold and Tan in 2009. …”
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The Tomb of Two Priestesses? The Late Neo-Elamite Jubaji Tomb in a Religious-Royal Context by Yasmina Wicks, Gian Pietro Basello

“…These include several semiprecious stone beads, including two inscribed eye-stones, that were already very ancient when deposited, special ritual paraphernalia, the bronze coffins that held the women’s remains, the inscribed gold ‘ring’ naming Šutur-Nahunte son of Intata, and an inscribed gold object (perhaps a bracelet) of a cult officiant. …”
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