Results 31 to 40 of about 13,156,873 (271)
Second-Order Disjoint Factor Analysis [PDF]
Psychometrika, 2022 Hierarchical models are often considered to measure latent concepts defining nested sets of manifest variables. Therefore, by supposing a hierarchical relationship among manifest variables, the general latent concept can be represented by a tree structure where each internal node represents a specific order of abstraction for the latent concept ...
Carlo Cavicchia, Maurizio Vichi
openaire +2 more sources
On second-order characterizability [PDF]
Logic Journal of IGPL, 2012 We investigate the extent of second order characterizable structures by extending Shelah's Main Gap dichotomy to second order logic. For this end we consider a countable complete first order theory T. We show that all sufficiently large models of T have a characterization up to isomorphism in the extension of second order logic obtained by adding a ...
Hyttinen, T. +2 more
openaire +3 more sources
IEEE Access, 2020 An adaptive second order recursive terminal sliding mode (SO-RTSM) is developed for the steering angle control of a four-wheel independent steer-by-wire (4WI-SbW) system.
Bin Deng, Ke Shao, Han Zhao
doaj +1 more source
Second Order Noncommutative Corrections to Gravity [PDF]
, 2006 In this work, we calculate the leading order corrections to general relativity formulated on a canonical noncommutative spacetime. These corrections appear in the second order of the expansion in theta.
A. Einstein +2 more
core +4 more sources
Qualitative analysis for a variable delay system of differential equations of second order
Journal of Taibah University for Science, 2019 This paper analyzes the stability, uniformly stability, asymptotically stability, boundedness, uniformly boundedness and square integrability of solutions of a system of differential equations of second order with variable delay by applying the direct ...
Cemil Tunç, Osman Tunç
doaj +1 more source
Monadic second-order definable graph orderings [PDF]
, 2014 We study the question of whether, for a given class of finite graphs, one can define, for each graph of the class, a linear ordering in monadic second-order logic, possibly with the help of monadic parameters.
Blumensath, Achim, Courcelle, Bruno
core +3 more sources
Exact Second-Order Structure-Function Relationships [PDF]
, 2002 Equations that follow from the Navier-Stokes equation and incompressibility but with no other approximations are "exact.". Exact equations relating second- and third-order structure functions are studied, as is an exact incompressibility condition on the
Hill, Reginald J.
core +2 more sources
Pure Second-Order Logic with Second-Order Identity
Notre Dame Journal of Formal Logic, 2010 Pure second-order logic is second-order logic without functional or first-order variables. In "Pure Second-Order Logic," Denyer shows that pure second-order logic is compact and that its notion of logical truth is decidable. However, his argument does not extend to pure second-order logic with second-order identity.
openaire +3 more sources
Second-order symmetric Lorentzian manifolds
, 2005 Lorentzian manifolds with vanishing second covariant derivative of the Riemann tensor are studied. Their existence, classification and explicit local expression are considered.
Senovilla, José M. M.
core +2 more sources
Coarse-grained Second Order Response Theory
, 2020 While linear response theory, manifested by the fluctuation dissipation theorem, can be applied at any level of coarse graining, nonlinear response theory is fundamentally of microscopic nature.
Basu, Urna +3 more
core +1 more source