Results 61 to 70 of about 38,746 (313)

Some extensions of right N-semilocal rings

Journal of Scientific Research in Science
In this paper, we study the necessary and sufficient conditions for the formal triangular matrix ring, the generalized upper triangular matrix ring, the trivial Morita context, and the Morita context to be right N-semilocal, right N-semiperfect, right N ...
Samah H. El-Bishlawy, Abdelrahman M. Hassanein, Samia M. Abdelwahab   +2 more
doaj   +1 more source

Waring problem for triangular matrix algebra

Linear 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   +3 more sources

Triangular matrix algebras over Hensel rings [PDF]

Proceedings of the American Mathematical Society, 1973
Let (R, m) be a local Hensel ring and A an algebra over R which is finitely generated and projective as an R-module. If A contains a complete set of mutually orthogonal primitive idempotents e 1 , ⋯ , e n {e_1 ...
openaire   +2 more sources

Synergistic Osteogenesis After Co‐Administration of cmRNAs Encoding BMP‐2 and BMP‐7 Utilizing a Transcript‐Activated Matrix

Advanced Functional Materials, EarlyView.
This study demonstrates that the dual delivery of BMP‐2/‐7 coding cmRNAs for bone healing is demonstrated as feasible, safe, and highly osteogenic. Compared to single BMP‐2 or BMP‐7 cmRNAs, the combination enhances the production of both mineral and organic components of the extracellular matrix when delivered using a collagen‐HA scaffold, supporting ...
Claudia Del Toro Runzer, Joanna M. Sadowska, Nadia Roumans, Christian Plank, Christopher H. Evans, Fergal J. O'Brien, Martijn van Griensven, Elizabeth R. Balmayor   +7 more
wiley   +1 more source

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

Journal 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

Universal localization of triangular matrix rings [PDF]

Proceedings of the American Mathematical Society, 2006
If R R is a triangular 2 × 2 2\times 2 matrix ring, the columns P P and Q Q are f.g. projective R R -modules. We describe the universal localization of R R which makes invertible an R R -module morphism
openaire   +3 more sources

Patterning the Void: Combining L‐Systems with Archimedean Tessellations as a Perspective for Tissue Engineering Scaffolds

Advanced Functional Materials, EarlyView.
This study introduces a novel multi‐scale scaffold design using L‐fractals arranged in Archimedean tessellations for tissue regeneration. Despite similar porosity, tiles display vastly different tensile responses (1–100 MPa) and deformation modes. In vitro experiments with hMSCs show geometry‐dependent growth and activity. Over 55 000 tile combinations
Maria Kalogeropoulou, Kenny A. van Kampen, Pierpaolo Fucile, Carlos Mota, Lorenzo Moroni   +4 more
wiley   +1 more source

Hochschild Cohomology of Triangular Matrix Algebras

Journal of Algebra, 2000
In the last years, the study of the Hochschild cohomology has played an important role in the representation theory of finite dimensional algebras. In the paper under review, the authoresses study the Hochschild cohomology of a triangular matrix algebra of the form \(B=\left(\begin{smallmatrix} R &0\\ M &A\end{smallmatrix}\right)\).
Michelena, Sandra, Platzeck, Maria Ines
openaire   +2 more sources

ON GENERALIZED TRIANGULAR MATRIX RINGS [PDF]

East Asian mathematical journal, 2014
For a generalized triangular matrix ring T = R M 0 S , over rings R and S having only the idempotents 0 and 1 and over an (R;S)-bimodule M, we characterize all homomorphisms 's and all - derivations of T. Some of the homomorphisms are compositions of an inner homomorphism and an extended or a twisted homomorphism.
Jang Ho Chun, June Won Park
openaire   +1 more source

Unveiling Phonon Contributions to Thermal Conductivity and the Applicability of the Wiedemann—Franz Law in Ruthenium and Tungsten Thin Films

Advanced Functional Materials, EarlyView.
Thermal transport in Ru and W thin films is studied using steady‐state thermoreflectance, ultrafast pump–probe spectroscopy, infrared‐visible spectroscopy, and computations. Significant Lorenz number deviations reveal strong phonon contributions, reaching 45% in Ru and 62% in W.
Md. Rafiqul Islam, Pravin Karna, Niraj Bhatt, Sandip Thakur, Helge Heinrich, Daniel M. Hirt, Saman Zare, Christopher Jezewski, Rinus T.P. Lee, Kandabara Tapily, John T. Gaskins, Colin D. Landon, Sean W. King, Ashutosh Giri, Patrick E. Hopkins   +14 more
wiley   +1 more source