Results 91 to 100 of about 1,801,897 (347)

Special Polynomial Rings, Quasi Modular Forms and Duality of Topological Strings [PDF]

open access: yes, 2013
We study the differential polynomial rings which are defined using the special geometry of the moduli spaces of Calabi-Yau threefolds. The higher genus topological string amplitudes are expressed as polynomials in the generators of these rings, giving ...
M. Alim   +3 more
semanticscholar   +1 more source

ACCP in Polynomial Rings: A Counterexample [PDF]

open access: yesProceedings of the American Mathematical Society, 1994
We describe an example showing that ACCP need not extend from a ring to a polynomial ring over it.
Heinzer, William J., Lantz, David C.
openaire   +2 more sources

Discordance Between Patient and Physician Global Assessments in Early Systemic Sclerosis

open access: yesArthritis Care &Research, EarlyView.
Objective This study aims to identify factors associated with patient global assessment (PtGA) and physician global assessment (PhGA) and discordance between them in systemic sclerosis (SSc). Methods Data from adults with early SSc (<5 years) from the Collaborative National Quality and Efficacy Registry were included.
Ellen Romich   +35 more
wiley   +1 more source

NIL DERIVATIONS AND d-IDEALS ON POLYNOMIAL RINGS

open access: yesBarekeng
Let  be a ring. An additive mapping  is called derivation if  satisfies Leibniz's rule, i.e.,   for every   In a special case, for each  there exists a positive integer  which depends on  such that , then  is called as a nil derivation on .
Ditha Lathifatul Mursyidah   +3 more
doaj   +1 more source

Security Analysis of Hybrid Attack for NTRU-Class Encryption Schemes

open access: yesIEEE Access, 2023
One of the significant post-quantum cryptographic candidates is the NTRU public key cryptosystem. It operates on polynomial rings, where the parameter largely determines the security of the system.
Alla Levina   +2 more
doaj   +1 more source

Network Communication with operators in Dedekind Finite and Stably Finite Rings [PDF]

open access: yes, 2016
Messages in communication networks often are considered as "discrete" taking values in some finite alphabet (e.g. a finite field). However, if we want to consider for example communication based on analogue signals, we will have to consider messages that
Riis, S
core  

The dimension of the ring of coefficients in a polynomial ring [PDF]

open access: yesProceedings of the American Mathematical Society, 1975
A A and B B
openaire   +2 more sources

Z-Polynomials and Ring Commutativity [PDF]

open access: yesMathematical Proceedings of the Royal Irish Academy, 2012
We characterise polynomials f with integer coefficients such that a ring with unity R is necessarily commutative if f(x) is central for all x Ɛ R. We also solve the corresponding problem without the assumption that the ring has a unity.
Buckley, Stephen M., McHale, D.
openaire   +2 more sources

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

open access: yesAdvanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt   +8 more
wiley   +1 more source

Differential polynomial rings over locally nilpotent rings need not be Jacobson radical [PDF]

open access: yes, 2013
We answer a question by Shestakov on the Jacobson radical in differential polynomial rings. We show that if R is a locally nilpotent ring with a derivation D then R [ X ; D ] need not be Jacobson radical.
A. Smoktunowicz, M. Ziembowski
semanticscholar   +1 more source

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