Results 61 to 70 of about 93,517 (188)

Proportional Stationarity and Structural Stability in Perturbative Field Theories

open access: yesQuantum Reports
We formulate a structural stability criterion for dimensionless physical constants within standard perturbative field frameworks. The analysis introduces a response-ratio functional Γ=κ/τ, defined from second-order sensitivity and first-order deformation
Robert Castro
doaj   +1 more source

Generalized compactness in linear spaces and its applications

open access: yes, 2009
The class of subsets of locally convex spaces called $\mu$-compact sets is considered. This class contains all compact sets as well as several noncompact sets widely used in applications.
A. D. Ioffe   +24 more
core   +1 more source

Impact of image plane selection on measures of left ventricular non-compaction [PDF]

open access: yesJournal of Cardiovascular Magnetic Resonance, 2014
Background Cardiac magnetic resonance (CMR) is frequently used to assess the extent of trabeculations in cases of left ventricular non-compaction. Most routine CMR studies do not acquire full 3D isotropic cine datasets and consequently suboptimal acquisition of prescribed image views could lead to clinically important inaccuracies in calculating non ...
Zemrak, Filip   +8 more
openaire   +1 more source

Existence of solutions to non-linear quadratic integral equations via measure of non-compactness

open access: yesFilomat, 2022
The objective of this manuscript is to enquire for the solvability of a specific type of non-linear quadratic integral equations via the interesting notion of measure of non-compactness. Firstly, we inquire into couple of exciting fixed point theorems involving a measure of non-compactness in the setting of a Banach space.
Karmakar, Surajit   +3 more
openaire   +3 more sources

Nonemptyness and compactness of the solution set for fractional evolution inclusions with non-instantaneous impulses

open access: yesElectronic Journal of Differential Equations, 2019
In this article, we consider the nonemptyness and compactness of the solution set for a class of fractional semilinear evolution inclusions with non-instantaneous impulses in Banach spaces. To achieve this we use fixed point theorems with semigroup
Jinrong Wang   +2 more
doaj  

Pullback measure attractors and evolution system of measures for p-Laplacian Ginzburg–Landau lattice systems driven by superlinear Lévy noise

open access: yesAdvanced Nonlinear Studies
This paper investigates the existence, uniqueness, and asymptotic behavior of pullback measure attractors and evolution systems of measures for a complex-valued p-Laplacian Ginzburg–Landau lattice system (GLLS) driven by superlinear Lévy noise.
Zeng Sangui, Long Jianren, Wang Renhai
doaj   +1 more source

Non-compact spaces of invariant measures

open access: yes
We study a compactification of the space of invariant probability measures for a transitive countable Markov shift. We prove that it is affine homeomorphic to the Poulsen simplex. Furthermore, we establish that, depending on a combinatorial property of the shift space, the compactification contains either a single new ergodic measure or a dense set of ...
Iommi, Godofredo, Velozo, Anibal
openaire   +2 more sources

Interpolation of a measure of weak non-compactness

open access: yesAnnales Academiae Scientiarum Fennicae Mathematica, 2011
The author proves the interpolation formula for the measure of non-compactness \(\gamma,\) \[ \gamma(T:\bar{A}_E\mapsto\bar{B}_E)\leq C \psi_E(\gamma(T:A_0\mapsto B_0),\gamma(T:A_1\mapsto B_1)), \] where the operator \(T:A_j\mapsto B_j\) is bounded in the Banach spaces \(A_j, B_j\), \((j=0,1)\), \(\bar{A}_E\) is the interpolation space of Lions and ...
openaire   +2 more sources

Multiplication Operator on Köthe Spaces: Measure of Non-compactness and Closed Range

open access: yesBulletin of the Malaysian Mathematical Sciences Society, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Castillo R.E.   +3 more
openaire   +2 more sources

The Implications of Nesting in California Redistricting [PDF]

open access: yes, 2007
Evaluates the process of nesting -- aggregating or dividing assembly and senate districts -- on redistricting outcomes, including compactness, minimizing city and county divisions, and the creation of majority minority ...
Bruce E. Cain   +6 more
core  

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