Results 21 to 30 of about 13,595 (306)

Three Representation Types for Systems of Forms and Linear Maps

open access: yesMathematics, 2021
We consider systems of bilinear forms and linear maps as representations of a graph with undirected and directed edges. Its vertices represent vector spaces; its undirected and directed edges represent bilinear forms and linear maps, respectively.
Abdullah Alazemi   +4 more
doaj   +1 more source

The Leibniz algebras whose subalgebras are ideals

open access: yesOpen Mathematics, 2017
In this paper we obtain the description of the Leibniz algebras whose subalgebras are ideals.
Kurdachenko Leonid A.   +2 more
doaj   +1 more source

Double-Periodic Soliton Solutions of the (2+1)-Dimensional Ito Equation

open access: yesAdvances in Mathematical Physics, 2023
In this work, a (2 + 1)-dimensional Ito equation is investigated, which represents the generalization of the bilinear KdV equation. Abundant double-periodic soliton solutions to the (2 + 1)-dimensional Ito equation are presented by the Hirota bilinear ...
Wen-Hui Zhu   +4 more
doaj   +1 more source

A Bilinear Form for Spin Manifolds [PDF]

open access: yesTransactions of the American Mathematical Society, 1987
Let \(M^{2j+2}\) be a closed Spin manifold, and let [, ] be the symmetric bilinear form on \(H^ j(M; {\mathbb{Z}}_ 2)\) defined by \([x,y]=\). In this paper, the authors study [, ] and the resulting cobordism invariants. For example, the rank modulo 2 of [, ] on integral cohomology is \(\) when dim M\(=8k+2\).
Landweber, Peter S., Stong, Robert E.
openaire   +2 more sources

Q-soliton solution for two-dimensional q-Toda lattice

open access: yesҚарағанды университетінің хабаршысы. Физика сериясы, 2019
The Toda lattice is a non-linear evolution equation describing an infinite system of masses on a line that interacts through an exponential force. The paper analyzes the construction of soliton solution for the q-Toda lattice in the two-dimensional case.
Б.Б. Кутум, Г.Н. Шайхова
doaj   +1 more source

The apolar bilinear form in geometric modeling [PDF]

open access: yes, 2000
Some recent methods of Computer Aided Geometric Design are related to the apolar bilinear form, an inner product on the space of homogeneous multivariate polynomials of a fixed degree, already known in 19th century invariant theory.
Vegter, Gert; id_orcid
core   +3 more sources

Bilinearization and new multi-soliton solutions of mKdV hierarchy with time-dependent coefficients

open access: yesOpen Physics, 2016
In this paper, Hirota’s bilinear method is extended to a new modified Kortweg–de Vries (mKdV) hierarchy with time-dependent coefficients. To begin with, we give a bilinear form of the mKdV hierarchy. Based on the bilinear form, we then obtain one-soliton,
Zhang Sheng, Zhang Luyao
doaj   +1 more source

Lump-Type and Bell-Shaped Soliton Solutions of the Time-Dependent Coefficient Kadomtsev-Petviashvili Equation

open access: yesFrontiers in Physics, 2020
In this article, the lump-type solutions of the new integrable time-dependent coefficient (2+1)-dimensional Kadomtsev-Petviashvili equation are investigated by applying the Hirota bilinear technique and a suitable ansatz.
Aliyu Isa Aliyu   +6 more
doaj   +1 more source

Spectral Decompositions of Gramians of Continuous Stationary Systems Given by Equations of State in Canonical Forms

open access: yesMathematics, 2022
The application of transformations of the state equations of continuous linear and bilinear systems to the canonical form of controllability allows one to simplify the computation of Gramians of these systems.
Igor Yadykin
doaj   +1 more source

Bilinear forms on the Dirichlet space [PDF]

open access: yesAnalysis & PDE, 2010
v1: 29 ...
ARCOZZI, NICOLA   +3 more
openaire   +5 more sources

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