Results 21 to 30 of about 9,405,925 (227)
Maximal functions and subordination for operator groups. [PDF]
, 2002 Let E be a UMD Banach space and L a positive and self-adjoint operator in L^2 of Laplace type such that the imaginary powers L^{-it} form a C_0 group of exponential growth on L^p(E).
Blower, Gordon
core +4 more sources
Schrödinger operators with δ and δ′-potentials supported on hypersurfaces [PDF]
, 2013 Self-adjoint Schrödinger operators with δ and δ′-potentials supported on a smooth compact hypersurface are defined explicitly via boundary conditions.
Lotoreichik, Vladimir +2 more
core +3 more sources
When is a non-self-adjoint Hill operator a spectral operator of scalar type? [PDF]
Comptes Rendus. Mathématique, 2005 5 ...
Gesztesy, Fritz, Tkachenko, Vadim
openaire +3 more sources
OPERATOR METHOD IN THE SCALAR WAVE DIFFRACTION BY AXIALLY-SYMMETRIC DISCONTINUITIES IN THE SCREEN
Radio Physics and Radio Astronomy, 2018 Purpose: The scalar wave diffraction by the annular slot in an infinitely thin screen is considered in case of Dirichlet and Neumann boundary conditions. Diffraction problem by a flat ring is also considered as a dual one.
M. E. Kaliberda +2 more
doaj +1 more source
Operator valued Dirichlet problem in the plane [PDF]
, 2012 We consider an operator valued Dirichlet problem for harmonic mappings and prove the existence of a Perron-like solution. To formulate the Perron’s construction we make use of Olson’s notion of spectral order.
Göğüş, Nihat Gökhan
core +3 more sources
ON REFLEXIVITY OF SCALAR-TYPE SPECTRAL OPERATORS
Demonstratio Mathematica, 1999 \(X\) is said to be a locally convex \(C(K)\)-module if the bilinear mapping \(C(K)\times X\to X:(a, x)\to ax\) satisfies the following conditions: (i) 1. \(x= x\) for all \(x\) in \(X\), (ii) \((a,b)x= a.(bx)\) \((a\in C(K),b\in C(K),x\in X)\), (iii) the bilinear mapping is separately continuous. Here \(K\) is a compact Hausdorff space.
openaire +3 more sources
Bounds for OPE coefficients on the Regge trajectory
Journal of High Energy Physics, 2017 We consider the Regge limit of the CFT correlation functions JJOO $$ \left\langle \mathcal{JJOO}\right\rangle $$ and T T O O $$ \left\langle TT\mathcal{O}\mathcal{O}\right\rangle $$ , where J $$ \mathcal{J} $$ is a vector current, T is the stress tensor ...
Miguel S. Costa +2 more
doaj +1 more source
Boolean algebras of projections and resolutions of the identity of scalar-type spectral operators [PDF]
Proceedings of the Edinburgh Mathematical Society, 1997 Let Μ be a Bade complete (or σ-complete) Boolean algebra of projections in a Banach space X. This paper is concerned with the following questions: When is Μ equal to the resolution of the identity (or the strong operator closure of the resolution of the identity) of some scalar-type spectral operator T (with σ(T) ⊆ ℝ) in X?
De Pagter, B., Ricker, W. J.
openaire +2 more sources
FEBS Letters, EarlyView.Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell +2 more
wiley +1 more source
The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation
FEBS Letters, EarlyView.Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge +6 more
wiley +1 more source