Results 71 to 80 of about 21,443,625 (160)
Journal of Synchrotron Radiation, Volume 32, Issue 4, Page 1095-1104, July 2025.MARTApp is an open‐source software for magnetic vector reconstruction of the data acquired from magnetic transmission X‐ray microscopy. It automates the tasks of image normalization, alignment, computation of magnetic signal and the reconstruction of quasi‐2D and ‐3D systems.
A. Estela Herguedas-Alonso +6 more
wiley +1 more source
A method for constructing idempotents in a unital algebra
Учёные записки Казанского университета: Серия Физико-математические наукиA method is proposed for constructing idempotents in a unital algebra 𝒜 using n arbitrary idempotents P1,...,Pn from this algebra. The properties of the resulting idempotents P = P(P1,...,Pn) are investigated; for n = 2 and n = 3, explicit forms of the ...
M. Khadour
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More properties of the product of two derivations of a C*-algebra
Bulletin of the Australian Mathematical Society, 1990 It is proved that the product of two non-zero derivations of a prime C*-algebra is bounded only if both of them are bounded.
Martin Mathieu
semanticscholar +1 more source
A simple separable C*-algebra not isomorphic to its opposite algebra [PDF]
, 2002 We give an example of a simple separable C*-algebra that is not isomorphic to its opposite algebra. Our example is nonnuclear and stably finite, has real rank zero and stable rank one, and has a unique tracial state.
N. Phillips, Christopher Phillips
semanticscholar +1 more source
Journal of Applied Crystallography, Volume 58, Issue 3, Page 768-788, June 2025.Novel linearization routines within the parameter space concept (PSC) provide an alternative approach to determine one‐dimensionally projected crystal structures from a few diffraction intensities of standard Bragg reflections, represented by piecewise analytic hyper‐surfaces, without the use of Fourier inversion.
Muthu Vallinayagam +3 more
wiley +1 more source
MATHEMATICA SCANDINAVICA, 1993 We show that if \(A\) and \(B\) are \(\sigma\)-unital, projective \(C^*\)- algebras (star-homomorphisms into \(C^*\)-algebras quotients lift to star-homomorphisms) then \(A\oplus B\) and \(M_ n(A)\) are projective. Corresponding results are proven for semiprojectivity. A corollary is that elements \(h_ 1,\dots, h_ n\) in a quotient \(C/I\) satisfying \[
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The in crystallo optical spectroscopy toolbox
Journal of Applied Crystallography, Volume 58, Issue 3, Page 1068-1078, June 2025.The rise of time‐resolved macromolecular crystallography has been accompanied by renewed interest in companion biophysical characterization methods applicable to molecules both in solution and in crystallo. Here, we present a workflow and a graphical interface for analysing spectroscopic data collected on macromolecular crystals.Over the past ten years,
Nicolas Caramello +3 more
wiley +1 more source
Journal of Functional Analysis, 1973 AbstractA C∗-algebra is called nuclear if there is a unique way of forming its tensor product with any other C∗-algebra. Takesaki [17] showed that all C∗-algebras of type I and all inductive limits of such algebras are nuclear, but that the C∗-algebra Cr∗(G) generated by the left regular representation of G on l2(G) is nonnuclear, where G is the free ...
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, 2005 In this work we characterise the C*-algebras A generated by projections with the property that every pair of projections in A has positive angle, as certain extensions of abelian algebras by algebras of compact operators. We show that this property is equivalent to a lattice theoretic property of projections and also to the property that the set of ...
Anoussis, M. +2 more
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Journal of New Theory, 2017 This paper deals the notion of Ω −N -structured subalgebras and Ω−N -structured Filters on CI-algebra.
Prakasam Muralikrishna +1 more
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