Results 21 to 30 of about 16,932,162 (348)

Isomorphisms of algebraic number fields [PDF]

open access: yesJournal de théorie des nombres de Bordeaux, 2012
Let ℚ ( α ) and ℚ (
Mark van Hoeij, Vivek Pal
openaire   +2 more sources

On Exponential Sums Over an Algebraic Number Field

open access: yesCanadian Journal of Mathematics - Journal Canadien de Mathematiques, 1951
Let K be an algebraic field of degree n over the rational field, and let b be the ground ideal (différente) of the field. Let
L. Hua
semanticscholar   +2 more sources

Functions of multivector variables. [PDF]

open access: yesPLoS ONE, 2015
As is well known, the common elementary functions defined over the real numbers can be generalized to act not only over the complex number field but also over the skew (non-commuting) field of the quaternions.
James M Chappell   +3 more
doaj   +1 more source

Construction of Complex Lattice Codes via Cyclotomic Fields

open access: yesTrends in Computational and Applied Mathematics, 2022
Through algebraic number theory and Construction $A$ we extend an algebraic procedure which generates complex lattice codes from the polynomial ring \mathbb{F}_{2}[x]/(x^{n}-1), where \mathbb{F}_{2}=\{0,1\}, by using ideals from the generalized ...
E. D. Carvalho   +3 more
doaj   +1 more source

Point counting for foliations over number fields

open access: yesForum of Mathematics, Pi, 2022
Let${\mathbb M}$ be an affine variety equipped with a foliation, both defined over a number field ${\mathbb K}$. For an algebraic $V\subset {\mathbb M}$ over ${\mathbb K}$, write $\delta _{V}$ for the maximum of the degree and log-height of V.
Gal Binyamini
doaj   +1 more source

Symmetry-Imposed Selection Rules for Excitations of Nontrivial Plasmonic Topologies. [PDF]

open access: yesAdv Sci (Weinh)
A unified group‐theory selection rule governs the excitation of vectorial nearfield topologies across three plasmonic spin states. Derived from first principles, it predicts spin–orbit vortex splitting and multidimensional nested vortices, confirmed by phase‐resolved in situ measurements.
Yang J   +14 more
europepmc   +2 more sources

epsilon-Pisot numbers in any real algebraic number field are relatively dense

open access: yes, 2004
An algebraic integer is called an epsilon-Pisot number (epsilon > 0) if its Galois conjugates have absolute value less then epsilon. Let K be any real algebraic number field.
Ai-Hua Fan, J. Schmeling
semanticscholar   +3 more sources

Constructions of Dense Lattices over Number Fields

open access: yesTrends in Computational and Applied Mathematics, 2020
In this work, we present constructions of algebraic lattices in Euclidean space with optimal center density in dimensions 2,3,4,5,6,8 and 12, which are rotated versions of the lattices Lambda_n, for n =2,3,4,5,6,8 and K_12.
Antonio A. Andrade   +3 more
doaj   +1 more source

Quartic surfaces, their bitangents and rational points [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2023
Let X be a smooth quartic surface not containing lines, defined over a number field K. We prove that there are only finitely many bitangents to X which are defined over K.
Pietro Corvaja, Francesco Zucconi
doaj   +1 more source

The Impact of Mental Computation on Children’s Mathematical Communication, Problem Solving, Reasoning, and Algebraic Thinking [PDF]

open access: yesAthens Journal of Education, 2020
Moving from arithmetic to algebraic thinking at early grades is foundational in the study of number patterns and number relationships. This qualitative study investigates mental computational activity in a third grade classroom’s and its relationship to ...
Roland Pourdavood   +2 more
doaj   +1 more source

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