Results 31 to 40 of about 2,994 (68)

Feature Selection for Stock Movement Direction Prediction Using Sparse Support Vector Machine

open access: yesApplied Stochastic Models in Business and Industry, Volume 41, Issue 3, May/June 2025.
ABSTRACT In financial markets, accurate stock price movement prediction can significantly enhance investors' profits. However, the stock price is a highly complex dynamic system with considerable fluctuations, and the accuracy of direction prediction can be improved by selecting appropriate technical indicators.
Maoxuan Miao   +5 more
wiley   +1 more source

The Shi variety corresponding to an affine Weyl group

open access: yesBulletin of the London Mathematical Society, Volume 57, Issue 3, Page 913-940, March 2025.
Abstract Let W$W$ be an irreducible Weyl group and Wa$W_a$ its affine Weyl group. In this article we show that there exists a bijection between Wa$W_a$ and the integral points of an affine variety, denoted X̂Wa$\widehat{X}_{W_a}$, which we call the Shi variety of Wa$W_a$.
Nathan Chapelier‐Laget
wiley   +1 more source

On higher-order discriminants

open access: yes, 2017
For the family of polynomials in one variable $P:=x^n+a_1x^{n-1}+\cdots +a_n$, $n\geq 4$, we consider its higher-order discriminant sets $\{ \tilde{D}_m=0\}$, where $\tilde{D}_m:=$Res$(P,P^{(m)})$, $m=2$, $\ldots$, $n-2$, and their projections in the ...
Kostov, Vladimir Petrov
core  

The Mumford conjecture (after Bianchi)

open access: yesJournal of Topology, Volume 18, Issue 1, March 2025.
Abstract We give a self‐contained and streamlined rendition of Andrea Bianchi's recent proof of the Mumford conjecture using moduli spaces of branched covers.
Ronno Das, Dan Petersen
wiley   +1 more source

Using approximate roots for irreducibility and equi-singularity issues in K[[x]][y]

open access: yes, 2019
We provide an irreducibility test in the ring K[[x]][y] whose complexity is quasi-linear with respect to the valuation of the discriminant, assuming the input polynomial F square-free and K a perfect field of characteristic zero or greater than deg(F ...
Poteaux, Adrien, Weimann, Martin
core  

A Verified Implementation of Algebraic Numbers in Isabelle/HOL. [PDF]

open access: yesJ Autom Reason, 2020
Joosten SJC, Thiemann R, Yamada A.
europepmc   +1 more source

A Verified Implementation of the Berlekamp-Zassenhaus Factorization Algorithm. [PDF]

open access: yesJ Autom Reason, 2020
Divasón J   +3 more
europepmc   +1 more source

Formalizing the LLL Basis Reduction Algorithm and the LLL Factorization Algorithm in Isabelle/HOL. [PDF]

open access: yesJ Autom Reason, 2020
Thiemann R   +5 more
europepmc   +1 more source

Diophantine equations in separated variables. [PDF]

open access: yesPeriod Math Hung, 2018
Kreso D, Tichy RF.
europepmc   +1 more source

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