Results 51 to 60 of about 15,515 (151)
Abstract Boundary Delay Systems and Application to Network Flow
Mathematical Methods in the Applied Sciences, Volume 49, Issue 1, Page 119-129, 15 January 2026.ABSTRACT This paper investigates the well‐posedness and positivity of solutions to a class of delayed transport equations on a network. The material flow is delayed at the vertices and along the edges. The problem is reformulated as an abstract boundary delay equation, and well‐posedness is proved by using the Staffans–Weiss theory.
András Bátkai +2 more
wiley +1 more source
On the reflexivity of algebras and linear spaces of operators.
Michigan Mathematical Journal, 1986 Let A be a weakly closed algebra of operators on Hilbert space H. Assume that for all weakly continuous functionals \(\{\phi_{ij}:\) \(1\leq i\leq 2\), \(1\leq j\leq 3\}\) on A there exist \(x_ 1,x_ 2,y_ 1,y_ 2,y_ 3\in H\) such that \(\phi_{ij}(T)=(Tx_ i,y_ j)\), \(1\leq i\leq 2\), \(i\leq j\leq 3\), \(T\in A\).
Bercovici, H., Foias, C., Pearcy, C.
openaire +3 more sources
FTheoryTools: Advancing Computational Capabilities for F‐Theory Research
Fortschritte der Physik, Volume 74, Issue 1, January 2026.Abstract A primary goal of string phenomenology is to identify realistic four‐dimensional physics within the landscape of string theory solutions. In F‐theory, such solutions are encoded in the geometry of singular elliptic fibrations, whose study often requires particularly challenging and cumbersome computations.
Martin Bies +2 more
wiley +1 more source
Everybody hurts: The Reviewer‐Imposed Pain (RIP) matrix
Medical Education, Volume 60, Issue 1, Page 73-78, January 2026.Abstract The peer review process supports authors by providing feedback on manuscripts from external, expert readers. However, not all reviews are supportive. Some reviews are just painful. But just how painful are they? In this study, we set out to validate a matrix describing the levels of pain authors experience in response to the sting of peer ...
Lara Varpio +3 more
wiley +1 more source
Applications of operator space theory to nest algebra bimodules
, 2011 Recently Blecher and Kashyap have generalized the notion of W* modules over von Neumann algebras to the setting where the operator algebras are \sigma- weakly closed algebras of operators on a Hilbert space.
Eleftherakis, G. K.
core
𝜎-weakly closed modules of certain reflexive operator algebras [PDF]
Proceedings of the American Mathematical Society, 1995 Let A \mathcal {A} be a completely distributive CSL algebra and let M be any σ \sigma -weakly closed A \mathcal {A} -module. We give characterizations of commutant C ( A , M ) C(\mathcal {A},M) of
openaire +1 more source
Birkhoff-James orthogonality and applications : A survey
, 2020 In the last few decades, the concept of Birkhoff-James orthogonality has been used in several applications. In this survey article, the results known on the necessary and sufficient conditions for Birkhoff-James orthogonality in certain Banach spaces are
Grover, Priyanka, Sushil
core
The general class of Wasserstein Sobolev spaces: density of cylinder functions, reflexivity, uniform convexity and Clarkson's inequalities. [PDF]
Calc Var Partial Differ Equ, 2023 Sodini GE.
europepmc +1 more source
A Logical Modeling of Severe Ignorance. [PDF]
J Philos Logic, 2023 Bonzio S +3 more
europepmc +1 more source
RANK-ONE OPERATORS IN REFLEXIVE A-SUBMODULES OF OPERATOR ALGEBRAS
Taiwanese Journal of Mathematics, 2005 In this paper, we first show that any reflexive $\mathcal{A}$-submodule $\mathcal{U}$ of a unital operator algebra $\mathcal{A}$ in $\mathcal{B(H)}$ is precisely of the following form: $$\mathcal{U} = \{ T \in \mathcal{B(H)}: TE \subseteq \phi(E) \quad \forall E \in \mathrm{Lat}\mathcal{A} \},$$ where $\phi$ is an order homomorphism of $\mathrm{Lat ...
openaire +2 more sources