Results 11 to 20 of about 3,056,362 (252)
WELL-POSEDNESS OF THE CAUCHY PROBLEM FOR p-EVOLUTION SYSTEMS OF PSEUDO-DIFFERENTIAL OPERATORS [PDF]
, 2013 We study p-evolution pseudo-differential systems of the first order with coefficients in (t,x) and real characteristics. We find sufficient conditions for the well-posedness of the Cauchy problem in H∞.
Ascanelli, Alessia, Boiti, Chiara
core +1 more source
Unbounded B-Fredholm operators on Hilbert spaces [PDF]
, 2008 This paper is concerned with the study of a class of closed linear operators densely defined on a Hilbert space H and called B-Fredholm operators.
Berkani, M. +3 more
core +1 more source
Composite ontology change operators and their customizable evolution strategies [PDF]
, 2012 Change operators are the building blocks of ontology evolution. Elementary, composite and complex change operators have been suggested. While lower-level change operators are useful in terms of finegranular representation of ontology changes ...
Abgaz, Yalemisew +2 more
core +2 more sources
Local Variational Quantum Compilation of Large-Scale Hamiltonian Dynamics
PRX Quantum, 2022 The implementation of time-evolution operators on quantum circuits is important for quantum simulation. However, the standard method, Trotterization, requires a huge number of gates to achieve desirable accuracy.
Kaoru Mizuta +3 more
doaj +1 more source
Root Operators and “Evolution” Equations
Mathematics, 2015 Root-operator factorization à la Dirac provides an effective tool to deal with equations, which are not of evolution type, or are ruled by fractional differential operators, thus eventually yielding evolution-like equations although for a multicomponent ...
Giuseppe Dattoli, Amalia Torre
doaj +1 more source
BSM hadronic matrix elements for ε ′ /ε and K → ππ decays in the Dual QCD approach
Journal of High Energy Physics, 2019 We calculate for the first time all four-quark hadronic matrix elements of local operators possibly contributing to K → ππ decays and in particular to the ratio ε ′ /ε beyond the Standard Model (BSM). To this end we use the Dual QCD (DQCD) approach.
Jason Aebischer +2 more
doaj +1 more source
Physical Review Research, 2021 Motivated by recent progress of quantum technologies making small-scale programmable quantum computing possible, here we study a discretized quantum adiabatic process for a one-dimensional free-fermion system described by a variational wave function, i.e.
Tomonori Shirakawa +2 more
doaj +1 more source
Generalized Exponential Trichotomies for Abstract Evolution Operators on the Real Line
Journal of Function Spaces and Applications, 2013 This paper considers two trichotomy concepts in the context of abstract evolution operators. The first one extends the notion of exponential trichotomy in the sense of Elaydi-Hajek for differential equations to abstract evolution operators, and it is a ...
Nicolae Lupa, Mihail Megan
doaj +1 more source
Two-loop evolution equations for flavor-singlet light-ray operators
Journal of High Energy Physics, 2019 QCD in non-integer d = 4 − 2ϵ space-time dimensions enjoys conformal invariance at the special fine-tuned value of the coupling. Counterterms for composite operators in minimal subtraction schemes do not depend on ϵ by construction, and therefore the ...
V. M. Braun +3 more
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Hidden maximal monotonicity in evolutionary variational-hemivariational inequalities
Nonlinear Analysis, 2021 In this paper, we propose a new methodology to study evolutionary variational-hemivariational inequalities based on the theory of evolution equations governed by maximal monotone operators. More precisely, the proposed approach, based on a hidden maximal
Emilio Vilches, Shengda Zeng
doaj +1 more source