Results 31 to 40 of about 727,816 (287)

Derived algebraic geometry, determinants of perfect complexes, and applications to obstruction theories for maps and complexes [PDF]

open access: greenJournal für die reine und angewandte Mathematik (Crelles Journal), 2013
Abstract A quasi-smooth derived enhancement of a Deligne–Mumford stack 𝒳 naturally endows 𝒳 with a functorial perfect obstruction theory in the sense of Behrend–Fantechi. We apply this result to moduli of maps and perfect complexes on a smooth complex projective variety.
Timo Schürg   +2 more
openalex   +9 more sources

Classical and Quantum Convolutional Codes Derived From Algebraic Geometry Codes [PDF]

open access: greenIEEE Transactions on Communications, 2018
In this paper, we construct new families of classical convolutional codes (CCC's) and new families of quantum convolutional codes (QCC's). The CCC's are derived from (block) algebraic geometry (AG) codes. Furthermore, new families of CCC's are constructed by applying the techniques of puncturing, extending, expanding, and by the direct product code ...
Francisco Revson F. Pereira   +2 more
openalex   +3 more sources

A note on Chern character, loop spaces and derived algebraic geometry

open access: green, 2008
In this note we present a work in progress whose main purpose is to establish a categorified version of sheaf theory. We present a notion of derived categorical sheaves, which is a categorified version of the notion of complexes of sheaves of modules on schemes, as well as its quasi-coherent and perfect versions.
Bertrand Toën, Gabriele Vezzosi
openalex   +4 more sources

Derived Algebraic Geometry V: Structured Spaces

open access: green, 2009
In this paper, we describe a general theory of "spaces with structure sheaves." Specializations of this theory include the classical theory of schemes, the theory of Deligne-Mumford stacks, and their derived generalizations.
Jacob Lurie
openalex   +4 more sources

The AKSZ Construction in Derived Algebraic Geometry as an Extended Topological Field Theory

open access: green, 2021
We construct a family of oriented extended topological field theories using the AKSZ construction in derived algebraic geometry, which can be viewed as an algebraic and topological version of the classical AKSZ field theories that occur in physics. These have as their targets higher categories of symplectic derived stacks, with higher morphisms given ...
Damien Calaque   +2 more
openalex   +5 more sources

ADM-like Hamiltonian formulation of gravity in the teleparallel geometry: derivation of constraint algebra [PDF]

open access: hybridGeneral Relativity and Gravitation, 2013
We derive a new constraint algebra for a Hamiltonian formulation of the Teleparallel Equivalent of General Relativity treated as a theory of cotetrad fields on a spacetime. The algebra turns out to be closed.
Andrzej Okołów
openalex   +6 more sources

Derived algebraic geometry of 2d lattice Yang-Mills theory [PDF]

open access: green
25 ...
Marco Benini   +2 more
openalex   +3 more sources

An introduction to derived (algebraic) geometry [PDF]

open access: yesRendiconti di Matematica e delle Sue Applicazioni
Mostly aimed at an audience with backgrounds in geometry and homological algebra, these notes offer an introduction to derived geometry based on a lecture course given by the second author.
Jon Eugster, Jonathan Pridham
doaj   +1 more source

Algebraic foliations and derived geometry II: the Grothendieck-Riemann-Roch theorem

open access: green, 2020
This is the second of series of papers on the study of foliations in the setting of derived algebraic geometry based on the central notion of derived foliation. We introduce sheaf-like coefficients for derived foliations, called quasi-coherent crystals, and construct a certain sheaf of dg-algebras of differential operators along a given derived ...
Bertrand Toën, Gabriele Vezzosi
openalex   +4 more sources

Computation of aberration coefficients for plane-symmetric reflective optical systems using Lie algebraic methods [PDF]

open access: yesEPJ Web of Conferences, 2022
The Lie algebraic method offers a systematic way to find aberration coefficients of any order for plane-symmetric reflective optical systems. The coefficients derived from the Lie method are in closed form and solely depend on the geometry of the optical
Barion Antonio   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy