Results 101 to 110 of about 3,056 (285)

Decomposition of Automorphisms of Certain Solvable Subalgebra of Symplectic Lie Algebra over Commutative Rings

International Journal of Mathematics and Mathematical Sciences, 2012
Let Cl+1(R) be the 2(l+1)×2(l+1) matrix symplectic Lie algebra over a commutative ring R with 2 invertible. Then tl+1CR  =  {m-1m-20-m-1T ∣ m̅1 is an l+1 upper triangular matrix, m̅2T=m̅2,  over  R} is the solvable subalgebra of Cl+1(R).
Xing Tao Wang, Lei Zhang
doaj   +1 more source

The role of identification in data‐driven policy iteration: A system theoretic study

International Journal of Robust and Nonlinear Control, EarlyView.
Abstract The goal of this article is to study fundamental mechanisms behind so‐called indirect and direct data‐driven control for unknown systems. Specifically, we consider policy iteration applied to the linear quadratic regulator problem. Two iterative procedures, where data collected from the system are repeatedly used to compute new estimates of ...
Bowen Song, Andrea Iannelli
wiley   +1 more source

Triangular Automorphisms [PDF]

, 2017
This chapter focuses on triangular automorphisms, which can be analyzed by Lie techniques. Throughout the discussion K is a commutative ring containing ℚ as a subring.
Matthias Aschenbrenner, Joris van der Hoeven, Lou van den Dries   +2 more
core   +1 more source

Cocharacters of upper triangular matrices [PDF]

International Journal of Group Theory, 2013
We survey some recent results on cocharacters of upper triangularmatrices. In particular, we deal both with ordinary and graded cocharactersequence; we list the principal combinatorial results; we show di erent tech-niques in order to solve similar ...
Lucio Centrone
doaj  

Machine learning‐driven advances in carbon‐based quantum dots: Opportunities accompanied by challenges

Responsive Materials, EarlyView.
Machine learning provides a unifying framework to connect structure, fluorescence properties, and applications of carbon‐based quantum dots. This review highlights how data‐driven strategies enable fluorescence regulation, reveal underlying mechanisms, and accelerate the rational design of functional carbon dots.
Liangfeng Chen, Siwei Yang, Xiangqian Cui, Ziheng Liu, Hang Wang, Yongqiang Li, Peng He, Miao Wang, Guqiao Ding   +8 more
wiley   +1 more source

Finiteness conditions on the Ext-algebra [PDF]

, 2005
Let A be a finite-dimensional algebra given by quiver and monomial relations. In [18] we see that the Ext-algebra of A is finitely generated only if all the Ext-algebras of certain cycle algebras overlying A are finitely generated.
Gabriel. Davis (7684958)
core  

Characterization of Generalized Derivations Associate with Hochschild 2-Cocycles on Triangular Banach Algebras

Journal of Mathematical Extension, 2015
Let A and B be unital Banach algebras and M be a left A-module and right B-module. We consider generalized derivations associate with Hochschild 2-cocycles on triangular Banach algebra T (related to A, B and M).
M. Kanani Arpatapeh∗, A. Jabbari
doaj  

High‐Speed Rail and Spatial Equity: Unpacking the Sustainability Paradox of Land Use and Fiscal Pressure in County‐Level Cities

Sustainable Development, EarlyView.
ABSTRACT Infrastructure‐led development in rapidly urbanizing economies often generates accessibility gains that fail to translate into balanced urban outcomes, particularly when local fiscal institutions redirect those gains toward revenue‐generating land uses. Filling this gap, especially in fiscally constrained county‐level cities where land finance
Ming Xie, Xiaoxiao Liao, Zhenlin Xie
wiley   +1 more source

The Lattice of Ideals of a Triangular AF Algebra

Journal of Functional Analysis, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Donsig, Allan P, Hudson, Timothy D
openaire   +1 more source

Derivations of subalgebras of the Lie algebra of block upper triangular matrices [PDF]

, 2016
This dissertation studies the derivations of some subalgebras of the Lie algebra of block upper triangular matrices. Specifically, we study the derivations of the Lie algebra of strictly block upper triangular matrices and the Lie algebra of so ...
Ghimire, Prakash
core