Results 51 to 60 of about 8,427,358 (293)
The Structure of Semiconic Idempotent Commutative Residuated Lattices
MathematicsIn this paper, we study semiconic idempotent commutative residuated lattices. After giving some properties of such residuated lattices, we obtain a structure theorem for semiconic idempotent commutative residuated lattices. As an application, we make use
Wei Chen
doaj +1 more source
Tight Hardness of the Non-commutative Grothendieck Problem [PDF]
IEEE Annual Symposium on Foundations of Computer Science, 2014 We prove that it is NP-hard to approximate the non-commutative Grothendieck problem to within any constant factor larger than one-half, which matches the approximation ratio of the algorithm of Naor, Regev, and Vidick (STOC'13).
J. Briët, O. Regev, Rishi Saket
semanticscholar +1 more source
Centrally Essential Rings and Semirings
Mathematics, 2022 This paper is a survey of results on centrally essential rings and semirings. A ring (respectively, semiring) is said to be centrally essential if it is either commutative or satisfies the property that for any non-central element a, there exist non-zero
Askar Tuganbaev
doaj +1 more source
A generalized Koszul property for skew PBW extensions [PDF]
, 2017 Let R be a commutative algebra. In this paper we show that constant skew PBW extensions of a generalized Koszul algebra R are also generalized Koszul. Let A be a semi-commutative skew PBW extension of R such that A is R-augmented.
H. Su'arez, A. Reyes
semanticscholar +1 more source
Duality for Commutative Group Stacks [PDF]
International mathematics research notices, 2014 We study in this article the dual of a (strictly) commutative group stack $G$ and give some applications. Using the Picard functor and the Picard stack of $G$, we first give some sufficient conditions for $G$ to be dualizable.
Sylvain Brochard
semanticscholar +1 more source
A modified D numbers methodology for environmental impact assessment
Technological and Economic Development of Economy, 2018 Environmental impact assessment (EIA) is usually evaluated by many factors influenced by various kinds of uncertainty or fuzziness. As a result, the key issues of EIA problem are to represent and deal with the uncertain or fuzzy information.
Ningkui Wang, Daijun Wei
doaj +1 more source
Demonstration of a Graphene Adjustable‐Barriers Phototransistor with Tunable Ultra‐High Responsivity
Advanced Optical Materials, EarlyView.A novel graphene‐based phototransistor with a tunable ultra‐high responsivity of 1.7 x 107 AW−1 has been demonstrated. Due to the selected material combination of amorphous silicon, graphene and n‐germanium, the device is potentially capable of dual‐band detection in the VIS‐IR range.
Carsten Strobel +5 more
wiley +1 more source
The Cohen Macaulay Property for Noncommutative Rings [PDF]
, 2016 Let R be a noetherian ring which is a finite module over its centre Z(R). This paper studies the consequences for R of the hypothesis that it is a maximal Cohen Macaulay Z(R)-module.
K. Brown, Marjory J. Macleod
semanticscholar +1 more source
Electrical Conductivities and Low Frequency Opacities in the Warm Dense Matter Regime
Contributions to Plasma Physics, EarlyView.ABSTRACT In this article, we examine different approaches for calculating low frequency opacities in the warm dense matter regime. The relevance of the average‐atom approximation and of different models for calculating opacities, such as the Ziman or Ziman–Evans models is discussed and the results compared to ab initio simulations.
Mikael Tacu +3 more
wiley +1 more source
∇-prime rings and their commutativity
Journal of Taibah University for Science, 2023 Consider a ring with an (anti)-automorphism ∇ of finite order. The fundamental aim of this manuscript is to introduce the notions of ∇-(semi)prime ideal and ∇-(semi)prime ring as a generalization of the notions of (semi)prime ideal, [Formula: see text ...
Mohammad Aslam Siddeeque +1 more
doaj +1 more source