Results 21 to 30 of about 1,701 (167)

Function-based hybrid synchronization types and their coexistence in non-identical fractional-order chaotic systems

open access: yesAdvances in Difference Equations, 2018
This paper presents new results related to the coexistence of function-based hybrid synchronization types between non-identical incommensurate fractional-order systems characterized by different dimensions and orders.
Adel Ouannas   +4 more
doaj   +1 more source

Miyaoka–Yau inequalities and the topological characterization of certain klt varieties

open access: yesComptes Rendus. Mathématique
Ball quotients, hyperelliptic varieties, and projective spaces are characterized by their Chern classes, as the varieties where the Miyaoka–Yau inequality becomes an equality.
Greb, Daniel   +2 more
doaj   +1 more source

Jensen Δn1 Reals by Means of ZFC and Second-Order Peano Arithmetic

open access: yesAxioms
It was established by Jensen in 1970 that there is a generic extension L[a] of the constructible universe L by a non-constructible real a∉L, minimal over L, such that a is Δ31 in L[a].
Vladimir Kanovei, Vassily Lyubetsky
doaj   +1 more source

NORMAL FUNCTIONS FOR ALGEBRAICALLY TRIVIAL CYCLES ARE ALGEBRAIC FOR ARITHMETIC REASONS

open access: yesForum of Mathematics, Sigma, 2019
For families of smooth complex projective varieties, we show that normal functions arising from algebraically trivial cycle classes are algebraic and defined over the field of definition of the family.
JEFFREY D. ACHTER   +2 more
doaj   +1 more source

Class Gradient Projection For Continual Learning

open access: yesProceedings of the 30th ACM International Conference on Multimedia, 2022
Catastrophic forgetting is one of the most critical challenges in Continual Learning (CL). Recent approaches tackle this problem by projecting the gradient update orthogonal to the gradient subspace of existing tasks. While the results are remarkable, those approaches ignore the fact that these calculated gradients are not guaranteed to be orthogonal ...
Cheng Chen   +3 more
openaire   +2 more sources

Characterizations of Weakly Approximately Primary Submodules in Some Types of Modules

open access: yesTikrit Journal of Pure Science, 2021
Our aim in this note is to introduce several characterizations of weakly approximately primary submodules in class of multiplication modules. Furthermore, we characterized weakly approximately primary submodules by theirs resudule in the class of ...
Khaled Y. Jhad, Bothaynah N. Shahab
doaj   +1 more source

Tangency quantum cohomology and characteristic numbers

open access: yesAnais da Academia Brasileira de Ciências, 2001
This work establishes a connection between gravitational quantum cohomology and enumerative geometry of rational curves (in a projective homogeneous variety) subject to conditions of infinitesimal nature like, for example, tangency.
JOACHIM KOCK
doaj   +1 more source

Comparing the Reasoning Capabilities of Equilibrium Theories and Answer Set Programs

open access: yesAlgorithms, 2022
Answer Set Programming (ASP) is a well established logical approach in artificial intelligence that is widely used for knowledge representation and problem solving.
Jorge Fandinno   +3 more
doaj   +1 more source

Reducibility of the Moduli Space of Stable Rank 2 Reflexive Sheaves with Chern Classes c1 = −1, c2 = 4, c3 = 2 on Projective Space P³

open access: yesМоделирование и анализ информационных систем, 2014
We prove the reducibility of the moduli space MrefP³(2; −1, 4, 2) of stable rank 2 re- flexive sheaves with Chern classes c₁ = −1, c₂ = 4, c₃ = 2 on projective space P³.
A. S. Tikhomirov, M. A. Zavodchikov
doaj   +1 more source

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