Results 71 to 80 of about 601,525 (187)

Difference dimension quasi-polynomials

open access: yesAdvances in Applied Mathematics, 2017
We consider Hilbert-type functions associated with difference (not necessarily inversive) field extensions and systems of algebraic difference equations in the case when the translations are assigned some integer weights. We will show that such functions are quasi-polynomials, which can be represented as alternative sums of Ehrhart quasi-polynomials ...
openaire   +3 more sources

Some representations of the general solution to a difference equation of additive type

open access: yesAdvances in Difference Equations, 2019
The general solution to the difference equation xn+1=axnxn−1xn−2+bxn−1xn−2+cxn−2+dxnxn−1xn−2,n∈N0, $$x_{n+1}=\frac {ax_{n}x_{n-1}x_{n-2}+bx_{n-1}x_{n-2}+cx_{n-2}+d}{x_{n}x_{n-1}x_{n-2}},\quad n\in\mathbb{N}_{0}, $$ where a,b,c∈C $a, b, c\in\mathbb{C}$, d∈
Stevo Stević
doaj   +1 more source

Distribution of the first particle in discrete orthogonal polynomial ensembles

open access: yes, 2002
We show that the distribution function of the first particle in a discrete orthogonal polynomial ensemble can be obtained through a certain recurrence procedure, if the (difference or q-) log-derivative of the weight function is rational.
Borodin, Alexei, Boyarchenko, Dmitriy
core   +1 more source

Numerical integration by the matrix method of boundary value problems for linear inhomogeneous ordinary differential equations of the third order with variable coefficients

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2018
The use of the Taylor polynomial of the second degree when approximating the derivatives by finite differences leads to the second order of approximation of the traditional method of nets in the numerical integration of second-order ordinary differential
Vladimir N Maklakov, Yanina G Stelmakh
doaj   +1 more source

A method for increasing the order of approximation to an arbitrary natural number by the numerical integration of boundary value problems for inhomogeneous linear ordinary differential equations of various degrees with variable coefficients by the matrix method

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2020
The paper includes the well-known matrix method of numerical integration of boundary value problems for inhomogeneous linear ordinary differential equations with variable coefficients, which provides retaining an arbitrary number of Taylor series ...
Vladimir Nikolaevich Maklakov
doaj   +1 more source

Equilibrium Computation in Resource Allocation Games

open access: yes, 2022
We study the equilibrium computation problem for two classical resource allocation games: atomic splittable congestion games and multimarket Cournot oligopolies.
Harks, Tobias, Tan-Timmermans, Veerle
core  

Value distribution of difference polynomials

open access: yesProceedings of the Japan Academy, Series A, Mathematical Sciences, 2007
We continue to studying value distribution of difference polynomials of meromorphic functions. In particular, we show that extending classical theorems of Tumura-Clunie type to difference polynomials needs additional assumptions.
Laine, Ilpo, Yang, Chung Chun
openaire   +4 more sources

Alternatives to polynomial trend-corrected differences-in-differences models [PDF]

open access: yesApplied Economics Letters, 2018
A common problem with differences-in-differences (DD) estimates is the failure of the parallel-trend assumption.
openaire   +6 more sources

Schubert polynomial expansions revisited

open access: yesForum of Mathematics, Sigma
We give an elementary approach utilizing only the divided difference formalism for obtaining expansions of Schubert polynomials that are manifestly nonnegative, by studying solutions to the equation $\sum Y_i\partial _i=\operatorname {id}$ on ...
Philippe Nadeau   +2 more
doaj   +1 more source

Evaluation of Computing Symmetrical Zolotarev Polynomials of the First Kind [PDF]

open access: yesRadioengineering, 2017
This report summarize and compares with each other various methods for computing the symmetrical Zolotarev Polynomial of the first kind and its spectrum. Suitable criteria are suggested for the comparison.
J. Kubak, P. Sovka, M. Vlcek
doaj  

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