Results 1 to 10 of about 48,198 (118)

Design and optimization of graded lattice structures with load path-oriented reinforcement

open access: yesMaterials & Design, 2023
Lattice structures have been increasingly used in load-carrying applications due to their exceptional mechanical performance. This study presents a novel load path methodology for designing and optimizing functionally graded lattice structures composed ...
Shengjie Zhao   +4 more
doaj   +3 more sources

Congruence for Lattice Path Models with Filter Restrictions and Long Steps

open access: yesMathematics, 2022
We derive a path counting formula for a two-dimensional lattice path model with filter restrictions in the presence of long steps, source and target points of which are situated near the filters. This solves the problem of finding an explicit formula for
Dmitry Solovyev
doaj   +3 more sources

Combinatorial Generation Algorithms for Some Lattice Paths Using the Method Based on AND/OR Trees

open access: yesAlgorithms, 2023
Methods of combinatorial generation make it possible to develop algorithms for generating objects from a set of discrete structures with given parameters and properties.
Yuriy Shablya
doaj   +1 more source

Counting Lattice Paths by Using Difference Equations with Non-constant Coefficients

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2023
The lattice paths can be counted by the virtue of their step vectors that are aligned to the positive octant. A path can go from one point to an infinite others if there is no restriction applied such that each point only has finitely many predecessors ...
S. Chandragiri
doaj   +1 more source

Analytic Combinatorics of Lattice Paths: Enumeration and Asymptotics for the Area [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2006
This paper tackles the enumeration and asymptotics of the area below directed lattice paths (walks on $\mathbb{N}$ with a finite set of jumps). It is a nice surprise (obtained via the "kernel method'') that the generating functions of the moments of the ...
Cyril Banderier, Bernhard Gittenberger
doaj   +1 more source

4-Dimensional Lattice Path Enumeration with Arbitrary Steps

open access: yesIndonesian Journal of Combinatorics, 2023
Consider a set of vectors, L, which consists of vectors whose coordinates are 0 or 1. We find explicit formulas that counts the number of lattice paths from origin to (a,b,c,d) for using vectors in {(1,0,0,0),(0,1,0,0),(0,0,1,0),(0,0,0,1)} ∪ L for ...
Alper Vural, Cemil Karaçam
doaj   +1 more source

Bijections for lattice paths between two boundaries [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2012
We prove that on the set of lattice paths with steps $N=(0,1)$ and $E=(1,0)$ that lie between two boundaries $B$ and $T$, the two statistics `number of $E$ steps shared with $B$' and `number of $E$ steps shared with $T$' have a symmetric joint ...
Sergi Elizalde, Martin Rubey
doaj   +1 more source

Topological Valley Transport of Elastic Waves Based on Periodic Triangular-Lattices

open access: yesCrystals, 2022
Topological transports of elastic waves have attracted much attention because of their unique immunity to defects and backscattering-suppression ability.
Zehuan Tang   +9 more
doaj   +1 more source

A Discrete-Time Approach to Evaluate Path-Dependent Derivatives in a Regime-Switching Risk Model

open access: yesRisks, 2020
This paper provides a discrete-time approach for evaluating financial and actuarial products characterized by path-dependent features in a regime-switching risk model.
Emilio Russo
doaj   +1 more source

Recursive Least-Squares Lattice Algorithm Combined With Secondary-Path Innovation and Lattice-Order Decision Algorithms for Active Noise Control

open access: yesIEEE Access, 2020
This paper proposes a new active noise control (ANC) system based on a recursive least-squares lattice (RLSL) algorithm by designing secondary-path innovation (SPI) and lattice-order decision (LOD) algorithms.
Dong Woo Kim, Poogyeon Park
doaj   +1 more source

Home - About - Disclaimer - Privacy