Results 11 to 20 of about 31,378 (268)

On Column-Convex and Convex Carlitz Polyominoes [PDF]

open access: yesMathematics in Computer Science, 2021
In this paper, we introduce and study {\it Carlitz polyominoes}. In particular, we show that, as $n$ grows to infinity, asymptotically the number of \begin{enumerate} \item column-convex Carlitz polyominoes with perimeter $2n$ is \beq \frac{9\sqrt{2}(14+3\sqrt{3})}{2704\sqrt{πn^3}}4^n.
Toufik Mansour   +2 more
openaire   +2 more sources

Triangulability of convex graphs and convex skewness [PDF]

open access: yesDiscrete Mathematics, Algorithms and Applications, 2021
Suppose [Formula: see text] is a subgraph of a convex complete graph [Formula: see text] and [Formula: see text] contains no boundary edge of [Formula: see text] and [Formula: see text]. We determine necessary and sufficient conditions on [Formula: see text] such that [Formula: see text] admits a triangulation.
Niran Abbas Ali   +3 more
openaire   +4 more sources

A convex polynomial that is not sos-convex [PDF]

open access: yesMathematical Programming, 2011
15 ...
Amir Ali Ahmadi, Pablo A. Parrilo
openaire   +2 more sources

Terracini convexity [PDF]

open access: yesMathematical Programming, 2022
AbstractWe present a generalization of the notion of neighborliness to non-polyhedral convex cones. Although a definition of neighborliness is available in the non-polyhedral case in the literature, it is fairly restrictive as it requires all the low-dimensional faces to be polyhedral.
James Saunderson, Venkat Chandrasekaran
openaire   +5 more sources

Convexity-Preserving Rational Cubic Zipper Fractal Interpolation Curves and Surfaces

open access: yesMathematical and Computational Applications, 2023
A class of zipper fractal functions is more versatile than corresponding classes of traditional and fractal interpolants due to a binary vector called a signature.
Vijay, Arya Kumar Bedabrata Chand
doaj   +1 more source

On the solvability of a class of nonlinear Hammerstein integral equations on the semiaxis [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика, 2022
The paper studies a class of nonlinear integral equations on the semiaxis with a non-compact Hammerstein operator. It is assumed that the kernel of the equation decreases exponentially on the positive part of the number axis. Equations of this kind arise
Khachatryan, Khachatur Agavardovich   +1 more
doaj   +1 more source

Modulation Recognition of Low-SNR UAV Radar Signals Based on Bispectral Slices and GA-BP Neural Network

open access: yesDrones, 2023
In this paper, we address the challenge of low recognition rates in existing methods for radar signals from unmanned aerial vehicles (UAV) with low signal-to-noise ratios (SNRs).
Xuemin Liu   +5 more
doaj   +1 more source

Geometric Properties of Generalized Integral Operators Related to The Miller–Ross Function

open access: yesAxioms, 2023
It is very well-known that the special functions and integral operators play a vital role in the research of applied and mathematical sciences. In this paper, our aim is to present sufficient conditions for the families of integral operators containing ...
Sercan Kazımoğlu   +2 more
doaj   +1 more source

Convexity for Interval Valued Neutrosophic Setsand its Application in Decision Making [PDF]

open access: yesNeutrosophic Sets and Systems
The notion ‘Convexity’ is applied in various areas of mathematics particularly in optimization techniques. It is known that this concept is applied in fuzzy sets, which is studied by many authors.
Suthi Keerthana Kumar   +4 more
doaj   +1 more source

Decay rates for a coupled viscoelastic Lamé system with strong damping

open access: yesMathematical Modelling and Analysis, 2020
In [6] Beniani, Taouaf and Benaissa studied a coupled viscoelastic Lamé system with strong dampings and established a general decay result. In this paper, we continue to study the system.
Baowei Feng, Haiyan Li
doaj   +1 more source

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