Results 11 to 20 of about 242,665 (215)

Algebraic structure of space and field [PDF]

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2001
We investigate an algebraic structure of the space of solutions of autonomous nonlinear differential equations of certain type. It is shown that for these equations infinitely many binary algebraic laws of addition of solutions exist.
Z. Z. Khukhunashvili   +1 more
doaj   +4 more sources

Simple algorithm for judging equivalence of differential-algebraic equation systems [PDF]

open access: yesScientific Reports, 2023
Mathematical formulas play a prominent role in science, technology, engineering, and mathematics (STEM) documents; understanding STEM documents usually requires knowing the difference between equation groups containing multiple equations.
Shota Kato, Chunpu Zhang, Manabu Kano
doaj   +2 more sources

Differential Equations for Algebraic Functions [PDF]

open access: yesProceedings of the 2007 international symposium on Symbolic and algebraic computation, 2007
It is classical that univariate algebraic functions satisfy linear differential equations with polynomial coefficients. Linear recurrences follow for the coefficients of their power series expansions.
Bostan, Alin   +4 more
core   +13 more sources

Novel closed-form travelling wave solutions for space-time fractional coupled Boussinesq–Burger model using extended direct algebraic method [PDF]

open access: yesScientific Reports
The nonlinear fractional partial differential equation known as the space-time fractional coupled Boussinesq-Burger equation (S TFcBBE) is examined in this work.
Taha Radwan   +4 more
doaj   +2 more sources

Numerical solution to Volterra integro-differential equations using collocation approximation [PDF]

open access: yesMathematics and Computational Sciences, 2023
This paper considers the collocation method for the numerical solution of the Volterra integro- differential equation using polynomial basis functions.
Ganiyu Ajileye, Sikiru Amoo
doaj   +1 more source

Numerical differential continuation approach for systems of nonlinear equations with singular Jacobian [PDF]

open access: yesAUT Journal of Mathematics and Computing, 2022
It is well known that, one of the useful and rapid methods for a nonlinear system of algebraic equations is Newton’s method. Newton’s method has at least quadratic convergence when the Jacobian is a nonsingular matrix in a neighborhood of the solution ...
Mohammad Ali Mehrpouya
doaj   +1 more source

Solutions of algebraic differential equations

open access: bronzeJournal of Differential Equations, 1983
This paper may be considered as a mathematical essay on the question “What is a solution of an algebraic differential equation?” Many theorems in differential algebra are proved by differentiating an algebraic differential equation several times, and then eliminating certain quantities, say, by the use of resultants.
Lee A. Rubel
openalex   +4 more sources

Singularities of algebraic differential equations [PDF]

open access: yesAdvances in Applied Mathematics, 2021
There exists a well established differential topological theory of singularities of ordinary differential equations. It has mainly studied scalar equations of low order. We propose an extension of the key concepts to arbitrary systems of ordinary or partial differential equations.
Lange-Hegermann, Markus   +3 more
openaire   +2 more sources

Algebraic and differential operator equations

open access: bronzeLinear Algebra and its Applications, 1988
Let H be a complex separable Hilbert space and let L(H) be the algebra of all bounded linear operators on H. The boundary value problem (1) \(X^{(n)}+A_{n-1}X^{(n-1)}+...+A_ 0X=0\), (2) \(EX(b)-X(0)F=G\), where \(A_ i,E,F,G\in L(H)\) and b is a positive real number is considered.
L. Jódar
openalex   +4 more sources

Irreducible Systems of Algebraic Differential Equations [PDF]

open access: bronzeTransactions of the American Mathematical Society, 1939
Let 7 be a domain of rationality, and let yi, , Yn be a set of indeterminates. Then the set of prime ideals in the ring of polynomials j7 [yi, , yn] satisfies a divisor-chain condition for decreasing sequences as well as for increasing sequences. That is, a sequence of prime ideals 11, 12, in 7[yi, , y.] must be of finite length not only if 2;i1 ...
Walter Strodt
openalex   +3 more sources

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