Results 71 to 80 of about 59,541 (246)
Local Polynomial Regression and Filtering for a Versatile Mesh‐Free PDE Solver
International Journal for Numerical Methods in Fluids, EarlyView.A high‐order, mesh‐free finite difference method for solving differential equations is presented. Both derivative approximation and scheme stabilisation is carried out by parametric or non‐parametric local polynomial regression, making the resulting numerical method accurate, simple and versatile. Numerous numerical benchmark tests are investigated for
Alberto M. Gambaruto
wiley +1 more source
Integer-valued polynomials on algebras: a survey
Actes des rencontres du CIRM, 2011 Summary: We compare several different concepts of integer-valued polynomials on algebras and collect the few results and many open questions to be found in the literature.
openaire +1 more source
Intraday Functional PCA Forecasting of Cryptocurrency Returns
Journal of Forecasting, EarlyView.ABSTRACT We study the functional PCA (FPCA) forecasting method in application to functions of intraday returns on Bitcoin. We show that improved interval forecasts of future return functions are obtained when the conditional heteroscedasticity of return functions is taken into account.
Joann Jasiak, Cheng Zhong
wiley +1 more source
Polynominals related to powers of the Dedekind eta function
, 2018 The vanishing properties of Fourier coefficients of integral powers of the Dedekind eta function correspond to the existence of integral roots of integer-valued polynomials Pn(x) introduced by M. Newman.
Heim, B., Neuhauser, M.
core
Combinatorial Nullstellensatz modulo prime powers and the Parity Argument [PDF]
, 2014 We present new generalizations of Olson's theorem and of a consequence of Alon's Combinatorial Nullstellensatz. These enable us to extend some of their combinatorial applications with conditions modulo primes to conditions modulo prime powers. We analyze
Varga, László
core
Another Prüfer Ring of Integer-Valued Polynomials
Journal of Algebra, 1997 Let \(D\) be an integral domain with quotient field \(K\) and let \(\text{ Int}(D) = \{f \in K [x] \mid f(D) \subseteq D\}\). If \(D\) is Dedekind and all its residue fields are finite then \(\text{ Int}(D)\) is Prüfer while if \(\text{ Int}(D)\) is Prüfer then \(D\) is almost Dedekind (i.e.
openaire +1 more source
Motive and Opportunity: Order Choice in a Limit Order Book With Dispersed Information
International Journal of Finance &Economics, EarlyView.ABSTRACT We test predictions of market microstructure theory relating to the determinants of order choice in a limit order book where information is dispersed among traders. Using an experimental limit order book, with a large state space, we find that informed traders exhibit patience, compatible with the ‘waiting game’ behaviour described in Foster ...
James Steeley +2 more
wiley +1 more source
JCPP Advances, EarlyView.AbstractBackgroundWe aimed to assess the prevalence of food insecurity reported by children and young people in four areas of England in 2023 and examine its association with mental health and wellbeing.MethodsWe used data from the OxWell student survey, a large, diverse, cross‐sectional study of 38,430 students aged 8–19 years, conducted primarily in ...
Giacomo Bignardi +3 more
wiley +1 more source
Integer-valued polynomials on valuation rings of global fields with prescribed lengths of factorizations. [PDF]
Mon Hefte Math, 2023 Fadinger-Held V, Frisch S, Windisch D.
europepmc +1 more source
Another Proof of the Generalized Tutte—Berge Formula for f $f$‐Bounded Subgraphs
Journal of Graph Theory, EarlyView.ABSTRACT Given a nonnegative integer weight f ( v ) $f(v)$ for each vertex v $v$ in a multigraph G $G$, an f $f$‐bounded subgraph of G $G$ is a multigraph H $H$ contained in G $G$ such that d H ( v ) ≤ f ( v ) ${d}_{H}(v)\le f(v)$ for all v ∈ V ( G ) $v\in V(G)$.
Zishen Qu, Douglas B. West
wiley +1 more source