Results 111 to 120 of about 697,969 (251)
Every Hilbert space frame has a Naimark complement [PDF]
arXiv, 2011 Naimark complements for Hilbert space Parseval frames are one of the most fundamental and useful results in the field of frame theory. We will show that actually all Hilbert space frames have Naimark complements which possess all the usual properties for Naimark complements with one notable exception.
arxiv
Expression of the ß-chain of the complement regulator C4b-binding protein in human ovary
European Journal of Cell Biology, 1999 Human C4b-binding protein (C4BP) is an important regulator of the complement system that also binds and inactivates the anticoagulant vitamin K-dependent protein S. These two activities are performed by two distinct polypeptides of 70 kDa and 45 kDa known as alpha and beta chains, respectively.
Criado-García, Olga +4 more
openaire +3 more sources
Leinert sets and complemented ideals in Fourier algebras [PDF]
arXiv, 2016 Let $G$ be a locally compact group. We show how complemented ideals in the Fourier algebra $A(G)$ of $G$ arise naturally from a class of thin sets known as Leinert sets. Moreover, we also present an explicit example of a closed ideal in $A(\mathbb{F}_{N})$, the free group on $N \ge 2$ generators, that is complemented in $A(\mathbb{F}_{N})$ but it is ...
arxiv
When is the sum of complemented subspaces complemented? [PDF]
arXiv, 2016 We provide a sufficient condition for the sum of a finite number of complemented subspaces of a Banach space to be complemented. Under this condition a formula for a projection onto the sum is given. We also show that the condition is sharp (in a certain sense).
arxiv
OncoTarget, 2016 Hepatitis B virus X protein (HBx) plays crucial roles in the development of hepatocellular carcinoma (HCC). We previously showed that HBx protected hepatoma cells from complement attack by activation of CD59.
G. Feng +8 more
semanticscholar +1 more source
Range-Kernel Complementation [PDF]
Studia Scientiarum Mathematicarum Hungarica, Vol. 55, no. 3, pp.
327-344, Sep. 2018, 2018 If a Banach-space operator has a complemented range, then its normed-space adjoint has a complemented kernel and the converse holds on a reflexive Banach space. It is also shown when complemented kernel for an operator is equivalent to complemented range for its normed-space adjoint. This is applied to compact operators and to compact perturbations. In
arxiv
Schur complements of selfadjoint Krein space operators [PDF]
arXiv, 2018 Given a bounded selfadjoint operator W on a Krein space H and a closed subspace S of H, the Schur complement of W to S is defined under the hypothesis of weak complementability. A variational characterization of the Schur complement is given and the set of selfadjoint operators W admitting a Schur complement with these variational properties is shown ...
arxiv
Investigative Ophthalmology and Visual Science, 2015 PURPOSE Chronic central serous chorioretinopathy (cCSC) has recently been associated to variants in the complement factor H gene. To further investigate the role of the complement system in cCSC, the genomic copy number variations in the complement ...
M. Breukink +6 more
semanticscholar +1 more source
Covalent association of C3b with C4b within C5 convertase of the classical complement pathway. [PDF]
, 1987 Y. Takata +6 more
openalex +1 more source
Frontiers in Immunology, 2018 Enteroaggregative Escherichia coli (EAEC) causes acute and persistent diarrhea worldwide. Still, the involvement of host factors in EAEC infections is unresolved. Binding of recognition molecules from the lectin pathway of complement to EAEC strains have
Camilla Adler Sørensen +5 more
doaj +1 more source