Results 31 to 40 of about 13,112 (262)
The Effects of Main Formulation and Process Parameters on Characteristics of Frankincense Essential Oil Microemulsions [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2022 The frankincense essential oil was successfully incorporated into nano-sized microemulsions systems through low energy self-emulsification technique. The effects of main formulation parameters, namely, surfactant, co-surfactant, essential oil, and water ...
Soheila Molai +3 more
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The affine preservers of non-singular matrices [PDF]
, 2004 When K is an arbitrary field, we study the affine automorphisms of M_n(K) that stabilize GL_n(K). Using a theorem of Dieudonn\'e on maximal affine subspaces of singular matrices, this is easily reduced to the known case of linear preservers when n>2 or ...
Saemann, Christian, Wolf, Martin
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Linear Maps Preserving the Set of Semi-Weyl Operators
Mathematics, 2023 Let H be an infinite-dimensional separable complex Hilbert space and B(H) the algebra of all bounded linear operators on H. In this paper, we characterized the linear maps ϕ:B(H)→B(H), which are surjective up to compact operators preserving the set of ...
Wei-Yan Yu, Xiao-Hong Cao
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Reachability Preservers: New Extremal Bounds and Approximation Algorithms
, 2023 We abstract and study \emph{reachability preservers}, a graph-theoretic primitive that has been implicit in prior work on network design. Given a directed graph $G = (V, E)$ and a set of \emph{demand pairs} $P \subseteq V \times V$, a reachability ...
Abboud, Amir, Bodwin, Greg
core
Linear preservers and quantum information science
, 2012 Let $m,n\ge 2$ be positive integers, $M_m$ the set of $m\times m$ complex matrices and $M_n$ the set of $n\times n$ complex matrices. Regard $M_{mn}$ as the tensor space $M_m\otimes M_n$. Suppose $|\cdot|$ is the Ky Fan $k$-norm with $1 \le k \le mn$, or
Fosner, Ajda +3 more
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Orthogonal forms and orthogonality preservers on real function algebras [PDF]
, 2013 We initiate the study of orthogonal forms on a real C$^*$-algebra. Motivated by previous contributions, due to Ylinen, Jajte, Paszkiewicz and Goldstein, we prove that for every continuous orthogonal form $V$ on a commutative real C$^*$-algebra, $A ...
Antonio, Jorge J. Garcés, M. Peralta
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Strong k-Skew Commutativity Preserving Maps on Standard Operator Algebras
AxiomsLet A be a self-adjoint standard operator algebra on a real or complex Hilbert space of dimension ≥2, and let k∈{1,2,3}. The k-skew commutator for A,B∈A is defined by [A,B]1∗=AB−BA∗ and [A,B]k∗=[A,[A,[A,B]k−1∗1]1∗.
Ting Zhang, Xiaofei Qi
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Quantum, 2020 Resource theory is a general, model-independent approach aiming to understand the qualitative notion of resource quantitatively. In a given resource theory, free operations are physical processes that do not create the resource and are considered zero-cost.
openaire +5 more sources
Latin-majorization and its linear preservers [PDF]
Sahand Communications in Mathematical Analysis, 2017 In this paper we study the concept of Latin-majorizati-\on. Geometrically this concept is different from other kinds of majorization in some aspects.
Mohammad Ali Hadian Nadoshan +1 more
doaj
Pediatric Blood &Cancer, EarlyView.ABSTRACT Primary lung carcinomas and bronchial carcinoid tumors (BC) are very rare malignancies in childhood. While typical BC and mucoepidermoid carcinomas are mostly low‐grade, localized tumors with a more favorable prognosis than in adults, necessitating avoidance of overtreatment, adenocarcinomas of the lung are often diagnosed at advanced disease ...
Michael Abele +19 more
wiley +1 more source