Results 1 to 10 of about 448,782 (115)

Algebraic Methods in Phylogenetics. [PDF]

open access: yesBull Math Biol, 2019
To those outside the field, and even to some focused on empirical applications, phylogenetics may appear to have little to do with algebra. Probability and statistics are clearly important ingredients, as modeling and inferring evolutionary relationships motivate the field.
Casanellas M, Rhodes JA.
europepmc   +5 more sources

The algebraic method [PDF]

open access: yesNuclear Physics B, 2001
Combining the effect of an intermediate renormalization prescription (zero momentum subtraction) and the background field method (BFM), we show that the algebraic renormalization procedure needed for the computation of radiative corrections within non-invariant regularization schemes is drastically simplified.
GRASSI, PIETRO, T. HURTH, M. STEINHAUSER
openaire   +4 more sources

Algebraic multigrid methods [PDF]

open access: yesActa Numerica, 2017
This paper provides an overview of AMG methods for solving large-scale systems of equations, such as those from discretizations of partial differential equations. AMG is often understood as the acronym of ‘algebraic multigrid’, but it can also be understood as ‘abstract multigrid’. Indeed, we demonstrate in this paper how and why an algebraic multigrid
Xu, Jinchao, Zikatanov, Ludmil
openaire   +2 more sources

Algebraic Methods for Tensor Data [PDF]

open access: yesSIAM Journal on Applied Algebra and Geometry, 2021
We develop algebraic methods for computations with tensor data. We give 3 applications: extracting features that are invariant under the orthogonal symmetries in each of the modes, approximation of the tensor spectral norm, and amplification of low rank tensor structure.
Tokcan, Neriman   +3 more
openaire   +3 more sources

Algebraic Shifting and Exterior and Symmetric Algebra Methods [PDF]

open access: yesCommunications in Algebra, 2008
26 pages. Revised version. Proofs of theorems 2.10 (now 2.11) and 2.11 (now 2.12) corrected. Exposition improved with some reordering.
Nagel, Uwe   +2 more
openaire   +2 more sources

Moduli stacks of algebraic structures and deformation theory [PDF]

open access: yes, 2015
We connect the homotopy type of simplicial moduli spaces of algebraic structures to the cohomology of their deformation complexes. Then we prove that under several assumptions, mapping spaces of algebras over a monad in an appropriate diagram category ...
Yalin, Sinan
core   +1 more source

On the mathematical synthesis of equational logics [PDF]

open access: yes, 2010
We provide a mathematical theory and methodology for synthesising equational logics from algebraic metatheories. We illustrate our methodology by means of two applications: a rational reconstruction of Birkhoff's Equational Logic and a new equational ...
Chung-Kil Hur   +2 more
core   +3 more sources

Sugihara algebras: Admissibility algebras via the test spaces method [PDF]

open access: yesJournal of Pure and Applied Algebra, 2020
This paper studies finitely generated quasivarieties of Sugihara algebras. These quasivarieties provide complete algebraic semantics for certain propositional logics associated with the relevant logic R-mingle. The motivation for the paper comes from the study of admissible rules.
Cabrer, Leonardo M.   +1 more
openaire   +2 more sources

Algebraic methods in the theory of generalized Harish-Chandra modules [PDF]

open access: yes, 2013
This paper is a review of results on generalized Harish-Chandra modules in the framework of cohomological induction. The main results, obtained during the last 10 years, concern the structure of the fundamental series of $(\mathfrak{g},\mathfrak{k ...
A. Knapp   +4 more
core   +3 more sources

Quantifier Elimination over Finite Fields Using Gr\"obner Bases [PDF]

open access: yes, 2011
We give an algebraic quantifier elimination algorithm for the first-order theory over any given finite field using Gr\"obner basis methods. The algorithm relies on the strong Nullstellensatz and properties of elimination ideals over finite fields.
Clarke, Edmund M.   +2 more
core   +1 more source

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