Results 11 to 20 of about 586,193 (290)
Flow Equations and Normal Ordering [PDF]
Journal of Physics A: Mathematical and General, 2005 In this paper we consider flow-equations where we allow a normal ordering which is adjusted to the one-particle energy of the Hamiltonian. We show that this flow converges nearly always to the stable phase. Starting out from the symmetric Hamiltonian and
Elmar Körding +5 more
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Normal Order: Combinatorial Graphs [PDF]
Quantum Theory and Symmetries, 2003 A conventional context for supersymmetric problems arises when we consider systems containing both boson and fermion operators. In this note we consider the normal ordering problem for a string of such operators.
Blasiak, Pawel +4 more
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Strongly-Normalizing Higher-Order Relational Queries [PDF]
Logical Methods in Computer Science, 2022 Language-integrated query is a powerful programming construct allowing database queries and ordinary program code to interoperate seamlessly and safely. Language-integrated query techniques rely on classical results about the nested relational calculus, stating that its queries can be algorithmically translated to SQL, as long as their result type is a
Ricciotti, Wilmer, Cheney, James
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Normal Higher-Order Termination [PDF]
ACM Transactions on Computational Logic, 2015 We extend the termination proof methods based on reduction orderings to higher-order rewriting systems based on higher-order pattern matching. We accommodate, on the one hand, a weakly polymorphic, algebraic extension of Church’s simply typed λ-calculus and, on the other hand, any use of eta, as a reduction, as an expansion, or as an equation. The user’
Jouannaud, Jean Pierre +1 more
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Order-cushioned refinements and normality [PDF]
Proceedings of the American Mathematical Society, 1982 The authors use the notions of order-cushioned covers and weak 0-covers to obtain the following result. THEOREM. A space X is collectionwise normal iff every weak 6-cover of X has an order-cushioned open refinement. Similar characterizations are obtained for normal, countably paracompact spaces and analogous embedding theorems are shown.
Smith, J. C., Telgársky, Rastislav
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Walks, Partitions, and Normal Ordering [PDF]
The Electronic Journal of Combinatorics, 2015 We describe the relation between graph decompositions into walks and the normal ordering of differential operators in the $n$-th Weyl algebra. Under several specifications, we study new types of restricted set partitions, and a generalization of Stirling numbers, which we call the $\lambda$-Stirling numbers.
Dzhumadil'daev, Askar +1 more
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NORMALLY ORDERED SEMIGROUPS [PDF]
Glasgow Mathematical Journal, 2008 AbstractIn this paper we introduce the notion of normally ordered block-group as a natural extension of the notion of normally ordered inverse semigroup considered previously by the author. We prove that the classNOSof all normally ordered block-groups forms a pseudovariety of semigroups and, by using the Munn representation of a block-group, we deduce
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Crucial Dependence of ``Precarious'' and ``Autonomous'' phi^4s Upon the Normal-ordering Mass [PDF]
, 1999 Using the Gaussian wave-functional approach with the normal-ordering renormalization prescription, we show that for the (3+1)-dimensional massive lambda phi^4 theory, ``precarious'' and ``autonomous'' phi^4s can exist if and only if the normal-ordering ...
Chang S. J. +10 more
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2020 global reassessment of the neutrino oscillation picture
Journal of High Energy Physics, 2021 We present an updated global fit of neutrino oscillation data in the simplest three-neutrino framework. In the present study we include up-to-date analyses from a number of experiments.
P. F. de Salas +7 more
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Constraining visible neutrino decay at KamLAND and JUNO
European Physical Journal C: Particles and Fields, 2020 We study visible neutrino decay at the reactor neutrino experiments KamLAND and, JUNO. Assuming the Majoron model of neutrino decay, we obtain constraints on the couplings between Majoron and neutrino as well as on the lifetime/mass of the most massive ...
Yago P. Porto-Silva +4 more
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