Results 41 to 50 of about 216,921 (319)

Nontrivial solutions of discrete Kirchhoff-type problems via Morse theory

open access: yesAdvances in Nonlinear Analysis, 2022
In this article, we study discrete Kirchhoff-type problems when the nonlinearity is resonant at both zero and infinity. We establish a series of results on the existence of nontrivial solutions by combining variational method with Morse theory.
Long Yuhua
doaj   +1 more source

Morse field theory [PDF]

open access: yesAsian Journal of Mathematics, 2012
In this paper we define and study the moduli space of metric-graph-flows in a manifold M. This is a space of smooth maps from a finite graph to M, which, when restricted to each edge, is a gradient flow line of a smooth (and generically Morse) function on M.
Cohen, Ralph, Norbury, Paul
openaire   +3 more sources

Polyzwitterionic Organohydrogel and Soft Composite with Tunable Sol–Gel Properties Enabling On‐Demand Functionalization with Colloids

open access: yesAdvanced Science, EarlyView.
Poly[2‐(methacryloyloxy)ethyl]dimethyl‐(3‐sulfopropyl)ammonium hydroxide‐based organohydrogels are formed via nonsolvent‐induced gelation, featuring tunable viscoelasticity. Functional fillers (MXene nanosheets, magnetic NdFeB microparticles) enable electrical, magnetic, and mechanical responsiveness for applications in mechano‐tunable electromagnetic ...
Ziyue Miao   +4 more
wiley   +1 more source

Existence of acyclic matching and Morse complex on transitive digraphs

open access: yesAKCE International Journal of Graphs and Combinatorics
For any digraph, there exists a transitive closure. The transitive digraph is a discrete geometric object which has a close relationship with simplicial complex.
Chong Wang, Shiquan Ren
doaj   +1 more source

Morse matchings on polytopes

open access: yes, 2011
We show how to construct homology bases for certain CW complexes in terms of discrete Morse theory and cellular homology. We apply this technique to study certain subcomplexes of the half cube polytope studied in previous works.
Bruggesser   +6 more
core   +1 more source

Multi‐Force‐Driven Self‐Recoverable SWIR Mechanoluminescence for Underwater Communication

open access: yesAdvanced Science, EarlyView.
This study represents the first demonstration of self‐recoverable mechanoluminescent (ML) within a single material across diverse mechanical modes, enabled by the synergistic coupling of piezoelectric and triboelectric effects. Through a combinatorial doping approach, the MgNb2O6 crystal exhibits breakthrough short‐wavelength infrared ML performance ...
Jie Sun   +13 more
wiley   +1 more source

Nontrivial periodic solutions to delay difference equations via Morse theory

open access: yesOpen Mathematics, 2018
In this paper some sufficient conditions are obtained to guarantee the existence of nontrivial 4T + 2 periodic solutions of asymptotically linear delay difference equations. The approach used is based on Morse theory.
Long Yuhua, Shi Haiping, Deng Xiaoqing
doaj   +1 more source

High‐Throughput Screening and Characterization of Non‐Flammable Na‐Cl Solid Electrolytes

open access: yesAdvanced Electronic Materials, EarlyView.
A Na‐Cl solid electrolyte with high ionic conductivity is screened from a structural database using force‐field molecular dynamics (MD) simulations and density functional theory (DFT)‐MD calculations. Na3La5Cl18 is identified, synthesized, and characterized.
Naoto Tanibata   +6 more
wiley   +1 more source

Complete solution of the Marchenko equation for a simple model system; pp. 267–283 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2016
An example of full solution of the inverse scattering problem on the half line (from 0 to ∞) is presented. For this purpose, a simple analytically solvable model system (Morse potential) is used, which is expected to be a reasonable approximation to a ...
Matti Selg
doaj   +1 more source

Changes in Alcohol Retail Laws and Foot Traffic at Liquor Stores

open access: yesApplied Economic Perspectives and Policy, EarlyView.
ABSTRACT We study how expanding alcohol availability at grocery and convenience stores affects consumer traffic in liquor stores by leveraging recent changes in state‐level alcohol distribution laws in a difference‐in‐difference quasi‐experimental design.
Nathan Palardy   +3 more
wiley   +1 more source

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