Results 11 to 20 of about 85,735,734 (209)

Microlocal Analysis of Some Isospectral Deformations [PDF]

open access: yes, 1994
We study the microlocal structure of the examples of isospectral deformations of Riemannian manifolds given by D. DeTurck and C. Gordon in [DeT-G1]. The Schwartz kernel of the intertwining operators considered by them may be written as an oscillatory ...
Marhuenda, Francisco   +2 more
core   +2 more sources

Extensions of functional calculus for Banach space operators [PDF]

open access: yes, 2006
We consider conditions under which a continuous functional calculus for a Banach space operator T Є L(X) may be extended to a bounded Borel functional calculus, and under which a functional calculus for absolutely continuous (AC) functions may be ...
Terauds, Venta
core   +1 more source

The H∞ functional calculus based on the S-spectrum for quaternionic operators and for n-tuples of noncommuting operators [PDF]

open access: yes, 2016
In this paper we extend the H∞ functional calculus to quaternionic operators and to n-tuples of noncommuting operators using the theory of slice hyperholomorphic functions and the associated functional calculus, called S-functional calculus.
Alpay, Daniel   +4 more
core   +1 more source

A maximal theorem for holomorphic semigroups. [PDF]

open access: yes, 2004
Let X be a closed linear subspace of the Lebesgue space L^p(Omega ; mu); let -A be an invertible linear operator that is the generator of abounded holomorphic semigroup T_t on X.
Ian Doust   +3 more
core   +2 more sources

Towards a theory of some unbounded linear operators on $p$-adic Hilbert spaces and applications [PDF]

open access: yes, 2005
summary:This paper is mainly concerned with extensions of the so-called Vishik functional calculus for analytic bounded linear operators to a class of unbounded linear operators on $c_0$.
Attimu, Dodzi   +3 more
core   +1 more source

The F-functional calculus for unbounded operators

open access: yes, 2018
\ua9 Springer Nature Switzerland AG 2018. Similar to the S-functional calculus, we can also extend the F-functional calculus to unbounded operators by suitably transforming the operator and the function and then applying the theory for bounded operators.
Colombo F, Kimsey DP, Gantner J
core   +2 more sources

Discrete Exterior Calculus [PDF]

open access: yes, 2003
This thesis presents the beginnings of a theory of discrete exterior calculus (DEC). Our approach is to develop DEC using only discrete combinatorial and geometric operations on a simplicial complex and its geometric dual.
Hirani, Anil Nirmal
core   +1 more source

A functional calculus for $N$-Tuples of noncommuting operators [PDF]

open access: yes, 2009
We employ the notion of slice monogenic functions to define a new functional calculus for an n-tuple of not necessarily commuting operators.
D. C. Struppa   +4 more
core   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

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