Results 21 to 30 of about 33,151 (213)

On the algebraic classification of K-local spectra [PDF]

open access: yes, 2008
In 1996, Jens Franke proved the equivalence of certain triangulated categories possessing an Adams spectral sequence. One particular application of this theorem is that the K(p)-local stable homotopy category at an odd prime can be described as the ...
Roitzheim, C.
core   +9 more sources

A Topological Coincidence Theory for Multifunctions via Homotopy

open access: yesMathematics, 2020
A new simple result is presented which immediately yields the topological transversality theorem for coincidences.
Donal O’Regan
doaj   +1 more source

On the Topology of Warped Product Pointwise Semi-Slant Submanifolds with Positive Curvature

open access: yesMathematics, 2021
In this paper, we obtain some topological characterizations for the warping function of a warped product pointwise semi-slant submanifold of the form Ωn=NTl×fNϕk in a complex projective space CP2m(4).
Yanlin Li   +3 more
doaj   +1 more source

Globally Aging Cortical Spontaneous Activity Revealed by Multiple Metrics and Frequency Bands Using Resting-State Functional MRI

open access: yesFrontiers in Aging Neuroscience, 2021
Most existing aging studies using functional MRI (fMRI) are based on cross-sectional data but misinterpreted their findings (i.e., age-related differences) as longitudinal outcomes (i.e., aging-related changes).
Xiu-Xia Xing
doaj   +1 more source

Branching Solutions of the Cauchy Problem for Nonlinear Loaded Differential Equations with Bifurcation Parameters

open access: yesMathematics, 2022
The Cauchy problem for a nonlinear system of differential equations with a Stieltjes integral (loads) of the desired solution is considered. The equation contains bifurcation parameters where the system has a trivial solution for any values.
Nikolai Sidorov, Denis Sidorov
doaj   +1 more source

Low-Complexity DCD-Based Sparse Recovery Algorithms

open access: yesIEEE Access, 2017
Sparse recovery techniques find applications in many areas. Real-time implementation of such techniques has been recently an important area for research.
Yuriy V. Zakharov   +3 more
doaj   +1 more source

Rigidity and exotic models for the K-local stable homotopy category [PDF]

open access: yes, 2007
Can the model structure of a stable model category be recovered from the triangulated structure of its homotopy category? This paper introduces a new positive example for this, namely the K-local stable homotopy at the prime 2.
Roitzheim, C., Roitzheim, Constanze
core   +1 more source

Improved Homotopy Perturbation Method for Geometrically Nonlinear Analysis of Space Trusses

open access: yesApplied Sciences, 2020
The objective of this study is to explore a noble application of the improved homotopy perturbation procedure bases in structural engineering by applying it to the geometrically nonlinear analysis of the space trusses. The improved perturbation algorithm
Hamzeh Dehghani   +3 more
doaj   +1 more source

Simulations as Homotopies

open access: yesElectronic Notes in Theoretical Computer Science, 2004
We exhibit a model structure on 2-Cat, obtained by transfer from sSet across the adjunction C2 Sd 2 a Ex 2 N2. A certain class of homotopies in this model structure turns out to be in 1-to-1 correspondence with strong simulations among labeled transitions systems, formalising the geometric intuition of simulations as deformations.
Kathryn Hess   +3 more
openaire   +3 more sources

Numerical Method Using Homotopic Iterative Functions Based on the via Point for the Joint-Space Trajectory Generation

open access: yesApplied Sciences, 2023
In recent years, many methods have been developed to calculate the trajectory of a robotic arm in the joint-space. These methods have many advantages, such as a soft motion and infinite jerk avoidance.
Yadira Quiñonez   +4 more
doaj   +1 more source

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