Results 61 to 70 of about 8,614,380 (320)

On solution-free sets of integers

European Journal of Combinatorics, 2017
Given a linear equation $\mathcal{L}$, a set $A \subseteq [n]$ is $\mathcal{L}$-free if $A$ does not contain any `non-trivial' solutions to $\mathcal{L}$. In this paper we consider the following three general questions: (i) What is the size of the largest $\mathcal{L}$-free subset of $[n]$?
Hancock, Robert, Treglown, Andrew
openaire   +3 more sources

A Lightweight Procedural Layer for Hybrid Experimental–Computational Workflows in Materials Science

Advanced Engineering Materials, EarlyView.
We unveil a prototype hybrid‐workflow framework that fuses automatedcomputation with hands‐on experiments. Built atop pyiron, a lightweight, parameterized layer translates procedure descriptions into executable manual steps, syncing instrument settings, human interventions, and data capture in real‐time today.
Steffen Brinckmann, Sarath Menon, Raphael Röske, Johannes Steinhülb, Michael Selzer, Jan Janssen, Tilmann Hickel, Ruth Schwaiger, Jörg Neugebauer   +8 more
wiley   +1 more source

Belief Propagation for Weighted b-Matchings on Arbitrary Graphs and its Relation to Linear Programs with Integer Solutions [PDF]

SIAM Journal on Discrete Mathematics, 2007
We consider the general problem of finding the minimum weight $\bm$-matching on arbitrary graphs. We prove that, whenever the linear programming (LP) relaxation of the problem has no fractional solutions, then the belief propagation (BP) algorithm ...
M. Bayati, C. Borgs, J. Chayes, R. Zecchina   +3 more
semanticscholar   +1 more source

Slight Truncation Changes in Iron Oxide Nanocubes Strongly Affect Their Magnetic Properties

Advanced Functional Materials, EarlyView.
Subtle variations in nanoparticle morphology can lead to significant changes in functional properties. An automated shape‐fitting method captures minor differences in corner truncation between iron oxide nanocubes of similar sizes synthesized under identical conditions, revealing pronounced disparities in their magnetic and hyperthermia behavior ...
Kingsley Poon, Raúl López‐Martín, Verner Håkonsen, Nader Yaacoub, Francisco J. Terán, Alberto López Ortega, Jose A. De Toro, Gurvinder Singh   +7 more
wiley   +1 more source

Impact of fractional and integer order derivatives on the (4+1)-dimensional fractional Davey–Stewartson–Kadomtsev–Petviashvili equation

Partial Differential Equations in Applied Mathematics
In this study, the closed-form wave solutions of the (4+1)-dimensional fractional Davey–Stewartson–Kadomtsev–Petviashvili equation are investigated using the modified auxiliary equation method and the Jacobi elliptic function method. In the analysis, two
Adil Jhangeer, Haiqa Ehsan, Muhammad Bilal Riaz, Abdallah M. Talafha   +3 more
doaj   +1 more source

Magnetic Force Microscopy Signatures of Higher‐Order Skyrmions and Antiskyrmions

Advanced Functional Materials, EarlyView.
Magnetic force microscopy operated under vacuum conditions enables the qualitative identification of higher‐order skyrmions and antiskyrmions in Co/Ni multilayers at room temperature. Distinct stray‐field contrast signatures arise from vertical Bloch lines and complex domain‐wall configurations.
Sabri Koraltan, Joe Sunny, Tamer Karaman, Reshma Peremadathil‐Pradeep, Emily Darwin, Felix Büttner, Dieter Suess, Hans Josef Hug, Manfred Albrecht   +8 more
wiley   +1 more source

The Diophantine Equation 8x+py=z2

The Scientific World Journal, 2015
Let p be a fixed odd prime. Using certain results of exponential Diophantine equations, we prove that (i) if p≡±3(mod  8), then the equation 8x+py=z2 has no positive integer solutions (x,y,z); (ii) if p≡7(mod  8), then the equation has only the solutions
Lan Qi, Xiaoxue Li
doaj   +1 more source

Secret sharing scheme with general access structure based on integer programming [PDF]

Jisuanji gongcheng, 2019
In order to simplify the access structure and ensure that all integer programming have solutions,a scheme is proposed to apply integer programming directly to the secret sharing of general access structure.By constructing integer programming,the secret ...
XIE Yang,MIAO Fuyou,BAI Jianfeng
doaj   +1 more source

Stacking‐Engineered Magnonic Topology and Transport in Honeycomb Homobilayers

Advanced Functional Materials, EarlyView.
ABSTRACT Topological magnons have emerged as a promising platform for dissipationless bosonic transport. However, a straightforward and effective strategy to engineer such topological states in real materials has yet to be fully realized. Here, a general scheme for controlling magnonic topological states via stacking engineering in van der Waals ...
Xiaoran Feng, Yingxi Bai, Bo Yuan, Ying Dai, Baibiao Huang, Chengwang Niu, Xiaotian Wang   +6 more
wiley   +1 more source

Operational Solution of Non-Integer Ordinary and Evolution-Type Partial Differential Equations

Axioms, 2016
A method for the solution of linear differential equations (DE) of non-integer order and of partial differential equations (PDE) by means of inverse differential operators is proposed.
Konstantin V. Zhukovsky, Hari M. Srivastava   +1 more
doaj   +1 more source