Results 61 to 70 of about 35,727 (292)

Bounds for the norm of lower triangular matrices on the Cesàro weighted sequence space

open access: yesJournal of Inequalities and Applications, 2017
This paper is concerned with the problem of finding bounds for the norm of lower triangular matrix operators from l p ( w ) $l_{p}(w)$ into c p ( w ) $c_{p} (w)$ , where c p ( w ) $c_{p}(w)$ is the Cesàro weighted sequence space and ( w n ) $(w_{n})$ is ...
Davoud Foroutannia, Hadi Roopaei
doaj   +1 more source

τ-tilting finite triangular matrix algebras

open access: yesJournal of Pure and Applied Algebra, 2021
11 pages, major changes: Theorem 3.1(1) and the proof of Theorem 2.1, a new important example: Example 3 ...
Takuma Aihara, Takahiro Honma
openaire   +3 more sources

Mechanical Behavior and Microstructural Changes Associated with Tensile Deformation above the Martensite Start Temperature during Quenching and Subsequent Partitioning of a Low‐Alloy 37SiB6 Steel

open access: yesAdvanced Engineering Materials, EarlyView.
A new experimental setup, incorporating digital image correlation and infrared thermography in combination with inductive‐conductive heating for precise temperature control, is used to analyze the mechanical behavior and microstructural changes of sheet metal under complex thermomechanical test conditions that represent quench and partitioning ...
Christian Illgen   +4 more
wiley   +1 more source

An Application of the t-Extension of the p-Fibonacci Pascal Matrix in Coding Theory

open access: yesAdvances in Mathematical Physics, 2022
We consider the t-extension of the p-Fibonacci Pascal matrix. First, we study the k-th power of the t-extension of the p-Fibonacci lower and upper triangular Pascal matrix.
Elahe Mehraban, Mansour Hashemi
doaj   +1 more source

Residual Stress States in Microstructurally Graded PBF–LB/M Austenitic Steel Components

open access: yesAdvanced Engineering Materials, EarlyView.
This study examines microstructurally graded 316L rectangular tube profiles fabricated via PBF–LB/M using a dual‐laser system. A 1 kW top‐hat and a 400 W Gaussian laser create distinct grain sizes and crystallographic texture. Mechanical properties are linked to microstructural evolution driven by processing conditions.
Nico Möller   +5 more
wiley   +1 more source

Waring problem for triangular matrix algebra

open access: yesLinear Algebra and its Applications
The Matrix Waring problem is if we can write every matrix as a sum of $k$-th powers. Here, we look at the same problem for triangular matrix algebra $T_n(\mathbb{F}_q)$ consisting of upper triangular matrices over a finite field. We prove that for all integers $k, n \geq 1$, there exists a constant $\mathcal C(k, n)$, such that for all $q> \mathcal ...
Kaushik, Rahul, Singh, Anupam
openaire   +2 more sources

Microstructural and Mechanical Properties of a Hard Anodic Coating Applied on an Elastically Prestrained Aluminum Substrate

open access: yesAdvanced Engineering Materials, EarlyView.
Prestraining the substrate influences coating formation process. Higher prestraining force leads to higher coating thickness and lower hardness. Increase in prestraining force enhances preliminary damage in hard anodic coating. Fatigue damage mechanisms change for hard anodized prestrained samples.
Linto George Thomas   +4 more
wiley   +1 more source

Derivations of upper triangular matrix rings

open access: yesLinear Algebra and its Applications, 1993
AbstractWe give a description of the derivations in Tn(R), the ringof upper triangular matrices over a ring R, assuming only the existence of an identity element. We show that every derivation is the sum of an inner derivation and another one induced from R.
C. Polcino Milies, Sǒnia P. Coelho
openaire   +2 more sources

CALPHAD‐Guided Prediction and Interpretation of Phase Formation in Ta–Mo–Cr–Ti–Al Refractory High‐Entropy Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
This study designs Ta–Mo–Cr–Ti–Al refractory high‐entropy alloys with a disordered body‐centered‐cubic A2 crystal structure aiming for improved ductility, lower density, and oxidation resistance. Four alloy compositions are identified by thermodynamic calculations.
Kateryna Khanchych   +7 more
wiley   +1 more source

On Nash Equilibrium Strategy of Two-person Zero-sum Games with Trapezoidal Fuzzy Payoffs

open access: yesFuzzy Information and Engineering, 2014
In this paper, we investigate Nash equilibrium strategy of two-person zero-sum games with fuzzy payoffs. Based on fuzzy max order, Maeda and Cunlin constructed several models in symmetric triangular and asymmetric triangular fuzzy environment ...
Bapi Dutta, S.K. Gupta
doaj   +1 more source

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