Results 1 to 10 of about 41,371 (166)

A Poincaré inequality on loop spaces

open access: yesJournal of Functional Analysis, 2010
We investigate properties of measures in infinite dimensional spaces in terms of Poincaré inequalities. A Poincaré inequality states that the $L^2$ variance of an admissible function is controlled by the homogeneous $H^1$ norm. In the case of Loop spaces, it was observed by L.
Xin Chen, Xue-Mei Li
exaly   +4 more sources

On homotopy nilpotency of some suspended spaces

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2021
A homological criterium from [Golasiński, M., On homotopy nilpotency of loop spaces of Moore spaces, Canad. Math. Bull. (2021), 1–12] is applied to investigate the homotopy nilpotency of some suspended spaces.
Marek Golasinski
doaj   +1 more source

Loop spaces and connections [PDF]

open access: yesJournal of Topology, 2012
Revised ...
Ben-Zvi, David, Nadler, David
openaire   +2 more sources

On the infinite loop spaces of algebraic cobordism and the motivic sphere [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2021
We obtain geometric models for the infinite loop spaces of the motivic spectra $\mathrm{MGL}$, $\mathrm{MSL}$, and $\mathbf{1}$ over a field. They are motivically equivalent to $\mathbb{Z}\times \mathrm{Hilb}_\infty^\mathrm{lci}(\mathbb{A}^\infty ...
Tom Bachmann   +5 more
doaj   +1 more source

Loop spaces and representations [PDF]

open access: yesDuke Mathematical Journal, 2013
A strengthened version of the second half of arXiv:0706.0322, with significant new material. v2: minor revisions.
Ben-Zvi, David, Nadler, David
openaire   +3 more sources

Positive geometry, local triangulations, and the dual of the Amplituhedron

open access: yesJournal of High Energy Physics, 2021
We initiate the systematic study of local positive spaces which arise in the context of the Amplituhedron construction for scattering amplitudes in planar maximally supersymmetric Yang-Mills theory. We show that all local positive spaces relevant for one-
Enrico Herrmann   +3 more
doaj   +1 more source

Diagrammar of physical and fake particles and spectral optical theorem

open access: yesJournal of High Energy Physics, 2021
We prove spectral optical identities in quantum field theories of physical particles (defined by the Feynman iϵ prescription) and purely virtual particles (defined by the fakeon prescription).
Damiano Anselmi
doaj   +1 more source

Loops in twistor space [PDF]

open access: yesPhysical Review D, 2005
We elucidate the one-loop twistor-space structure corresponding to momentum-space MHV diagrams. We also discuss the infrared divergences, and argue that only a limited set of MHV diagrams contain them. We show how to introduce a twistor-space regulator corresponding to dimensional regularization for the infrared-divergent diagrams.
Bena, Iosif   +3 more
openaire   +2 more sources

Small-gain theorem for a class of abstract parabolic systems [PDF]

open access: yesOpuscula Mathematica, 2018
We consider a class of abstract control system of parabolic type with observation which the state, input and output spaces are Hilbert spaces. The state space operator is assumed to generate a linear exponentially stable analytic semigroup.
Piotr Grabowski
doaj   +1 more source

On loop spaces of configuration spaces [PDF]

open access: yesTransactions of the American Mathematical Society, 2002
This article gives an analysis of topological and homological properties for loop spaces of configuration spaces. The main topological results are given by certain choices of product decompositions of these spaces, as well as “twistings" between the factors.
Cohen, F. R., Gitler, S.
openaire   +1 more source

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