Results 31 to 40 of about 158,038 (267)

Chiral topological insulator on Nambu 3-algebraic geometry

open access: yesNuclear Physics B, 2014
Chiral topological insulator (AIII-class) with Landau levels is constructed based on the Nambu 3-algebraic geometry. We clarify the geometric origin of the chiral symmetry of the AIII-class topological insulator in the context of non-commutative geometry
Kazuki Hasebe
doaj   +1 more source

VARIETIES OF SIGNATURE TENSORS

open access: yesForum of Mathematics, Sigma, 2019
The signature of a parametric curve is a sequence of tensors whose entries are iterated integrals. This construction is central to the theory of rough paths in stochastic analysis. It is examined here through the lens of algebraic geometry.
CARLOS AMÉNDOLA   +2 more
doaj   +1 more source

Feng-Rao decoding of primary codes [PDF]

open access: yes, 2012
We show that the Feng-Rao bound for dual codes and a similar bound by Andersen and Geil [H.E. Andersen and O. Geil, Evaluation codes from order domain theory, Finite Fields Appl., 14 (2008), pp.
Geil, Olav   +2 more
core   +4 more sources

Generating the bounded derived category and perfect ghosts [PDF]

open access: yes, 2011
We show, for a wide class of abelian categories relevant in representation theory and algebraic geometry, that the bounded derived categories have no non-trivial strongly finitely generated thick subcategories containing all perfect complexes.
Oppermann, Steffen, Stovicek, Jan
core   +1 more source

Domain Decomposition With Non-Conforming Polyhedral Grids

open access: yesIEEE Access, 2021
A novel mortar approach for the domain decomposition of field problems discretized in terms of nodal variables by the cell method is here proposed.
Federico Moro, Lorenzo Codecasa
doaj   +1 more source

SQCD: A Geometric Apercu [PDF]

open access: yes, 2008
We take new algebraic and geometric perspectives on the old subject of SQCD. We count chiral gauge invariant operators using generating functions, or Hilbert series, derived from the plethystic programme and the Molien-Weyl formula.
A. Butti   +34 more
core   +2 more sources

Modelling, simulation and geometric optimization of cross flow recuperative heat exchanger based on controllability condition number [PDF]

open access: yesTehnika, 2017
This paper presents the algebraic mathematical model of cross - flow heat exchanger derived on the basis of transport approach. Theirs operation in the face of variable loads is usually controlled by manipulating inlet fluid temperatures or mass flow ...
Stević Dalibor   +2 more
doaj   +1 more source

Birkhoff's Theorem from a geometric perspective: A simple example [PDF]

open access: yesCategories and General Algebraic Structures with Applications, 2016
‎From Hilbert's theorem of zeroes‎, ‎and from Noether's ideal theory‎, ‎Birkhoff derived certain algebraic concepts (as explained by Tholen) that have a dual significance in general toposes‎, ‎similar to their role in the original examples of algebraic ...
F. William Lawvere
doaj  

Characteristic Number: Theory and Its Application to Shape Analysis

open access: yesAxioms, 2014
Geometric invariants are important for shape recognition and matching. Existing invariants in projective geometry are typically defined on the limited number (e.g., five for the classical cross-ratio) of collinear planar points and also lack the ability ...
Xin Fan   +5 more
doaj   +1 more source

Notes on derived algebraic geometry

open access: yes, 2022
These are notes on derived algebraic geometry in the context of animated rings. More precisely, we recall the proof of Toën-Vaquié that the derived stack of perfect complexes is locally geometric in the language of $\infty$-categories. Along the way, we recall the necessary notions in derived commutative algebra and derived algebraic geometry.
openaire   +2 more sources

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