Results 31 to 40 of about 4,223,867 (200)

Equivariant Hilbert series [PDF]

open access: yesAlgebra & Number Theory, 2009
We consider a finite group acting on a graded module and define an equivariant degree that generalizes the usual nonequivariant degree. The value of this degree is a module for the group, up to a rational multiple. We investigate how this behaves when the module is a ring and apply our results to reprove some results of Kuhn on the ohomology of groups.
Himstedt, Frank, Symonds, Peter
openaire   +2 more sources

Bragg grating based integrated photonic Hilbert transformers

open access: yes, 2013
Planar Bragg grating based photonic Hilbert transformers are experimentally demonstrated in this work. Planar Bragg gratings are utilized to implement a general Hilbert transform, a fractional order Hilbert transform and terahertz bandwidth Hilbert ...
Smith, P.G.R.   +7 more
core   +2 more sources

Hilbert series and higher-order Lagrangians for the O(N) model

open access: yesJournal of High Energy Physics, 2023
We compare the Hilbert series approach with explicit constructions of higher-order Lagrangians for the O(N) nonlinear sigma model. We use the Hilbert series to find the number and type of operators up to mass dimension 16, for spacetime dimension D up to
Johan Bijnens   +3 more
doaj   +1 more source

On algebraic characterization of SSC of the Jahangir’s graph 𝓙n,m

open access: yesOpen Mathematics, 2018
In this paper, some algebraic and combinatorial characterizations of the spanning simplicial complex Δs(𝓙n,m) of the Jahangir’s graph 𝓙n,m are explored. We show that Δs(𝓙n,m) is pure, present the formula for f-vectors associated to it and hence deduce a ...
Raza Zahid, Kashif Agha, Anwar Imran
doaj   +1 more source

Multigraded Hilbert series of noncommutative modules [PDF]

open access: yesJournal of Algebra, 2018
In this paper, we propose methods for computing the Hilbert series of multigraded right modules over the free associative algebra. In particular, we compute such series for noncommutative multigraded algebras. Using results from the theory of regular languages, we provide conditions when the methods are effective and hence the sum of the Hilbert series
Roberto La Scala, Sharwan K. Tiwari
openaire   +3 more sources

Supergravities and branes from Hilbert-Poincaré series

open access: yesJournal of High Energy Physics, 2023
The Molien-Weyl integral formula and the Hilbert-Poincaré series have proven to be powerful mathematical tools in relation to gauge theories, allowing to count the number of gauge invariant operators.
C. A. Cremonini   +3 more
doaj   +1 more source

The ordinary Hilbert series for Sibirsky graded algebras of the differential system s(5,7)

open access: yesActa et Commentationes: Ştiinţe Exacte şi ale Naturii
In this paper are examined the construction of ordinary Hilbert series for Sibirsky graded algebras of comitants and invariants in autonomous polynomial differential systems.
Lidia Mușinschi, Victor Pricop
doaj   +1 more source

Hilbert series for theories with Aharony duals [PDF]

open access: yesJournal of High Energy Physics, 2015
The algebraic structure of moduli spaces of 3d N=2 supersymmetric gauge theories is studied by computing the Hilbert series which is a generating function that counts gauge invariant operators in the chiral ring. These U(N_c) theories with N_f flavors have Aharony duals and their moduli spaces receive contributions from both mesonic and monopole ...
Hanany, A   +4 more
openaire   +3 more sources

On computation of the ordinary Hilbert series for Sibirsky graded algebras of differential system s(3,5)

open access: yesActa et Commentationes: Ştiinţe Exacte şi ale Naturii
The generalized and ordinary Hilbert series for Sibirsky graded algebras of comitants and invariants of autonomous polynomial differential systems are of particular importance for some problems of qualitative theory of differential systems.
Lidia Mușinschi, Victor Pricop
doaj   +1 more source

Dynamic Hardy-type inequalities with non-conjugate parameters

open access: yesAlexandria Engineering Journal, 2020
Within this paper, we derive entire series of new Hilbert and Hardy-Hilbert form integral inequalities with non-conjugate exponents on time scales. Firstly, we demonstrate and discuss two general equivalent inequalities of this type, as well as their ...
Ghada AlNemer   +4 more
doaj   +1 more source

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