Results 11 to 20 of about 286 (55)

Isotopy classes for 3‐periodic net embeddings

open access: yesActa Crystallographica Section A, Volume 76, Issue 3, Page 275-301, May 2020., 2020
Entangled embedded periodic nets and crystal frameworks are defined, along with their dimension type, homogeneity type, adjacency depth and periodic isotopy type.Entangled embedded periodic nets and crystal frameworks are defined, along with their dimension type, homogeneity type, adjacency depth and periodic isotopy type.
Stephen C. Power   +2 more
wiley   +1 more source

Refinements of Nash equilibrium in potential games

open access: yesTheoretical Economics, Volume 9, Issue 3, Page 555-582, September 2014., 2014
We prove the existence of a pure‐strategy trembling‐hand perfect equilibrium in upper semicontinuous potential games, and we show that generic potential games possess pure‐strategy strictly perfect and essential equilibria. We also establish a more powerful result: the set of maximizers of an upper semicontinuous potential contains a strategically ...
Oriol Carbonell‐Nicolau   +1 more
wiley   +1 more source

Dark Energy from the Gas of Wormholes

open access: yesJournal of Astrophysics, Volume 2013, Issue 1, 2013., 2013
We assume the space‐time foam picture in which the vacuum is filled with a gas of virtual wormholes. It is shown that virtual wormholes form a finite (of the Planckian order) value of the energy density of zero‐point fluctuations. However such a huge value is compensated by the contribution of virtual wormholes to the mean curvature and the observed ...
A. A. Kirillov   +4 more
wiley   +1 more source

Some Comments on Rigorous Finite‐Volume Euclidean Quantum Field Path Integrals in the Analytical Regularization Scheme

open access: yesAdvances in Mathematical Physics, Volume 2011, Issue 1, 2011., 2011
Through the systematic use of the Minlos theorem on the support of cylindrical measures on R∞, we produce several mathematically rigorous finite‐volume euclidean path integrals in interacting euclidean quantum fields with Gaussian free measures defined by generalized powers of finite‐volume Laplacian operator.
Luiz C. L. Botelho, Klaus Kirsten
wiley   +1 more source

Symmetry of evidence without evidence of symmetry

open access: yesTheoretical Economics, Volume 5, Issue 3, Page 313-368, September 2010., 2010
The de Finetti Theorem is a cornerstone of the Bayesian approach. Bernardo (1996, p. 5) writes that its “message is very clear: if a sequence of observations is judged to be exchangeable, then any subset of them must be regarded as a random sample from some model, and there exists a prior distribution on the parameter of such model, hence requiring a ...
Larry G. Epstein, Kyoungwon Seo
wiley   +1 more source

Supermodular mechanism design

open access: yesTheoretical Economics, Volume 5, Issue 3, Page 403-443, September 2010., 2010
This paper introduces a mechanism design approach that allows dealing with the multiple equilibrium problem, using mechanisms that are robust to bounded rationality. This approach is a tool for constructing supermodular mechanisms, i.e., mechanisms that induce games with strategic complementarities. In quasilinear environments, I prove that if a social
Laurent Mathevet
wiley   +1 more source

Optimal Estimators for Threshold‐Based Quality Measures

open access: yesJournal of Probability and Statistics, Volume 2010, Issue 1, 2010., 2010
We consider a problem in parametric estimation: given n samples from an unknown distribution, we want to estimate which distribution, from a given one‐parameter family, produced the data. Following Schulman and Vazirani (2005), we evaluate an estimator in terms of the chance of being within a specified tolerance of the correct answer, in the worst case.
Aaron Abrams   +6 more
wiley   +1 more source

Ergodic sequences of probability measures on commutative hypergroups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 7, Page 335-343, 2004., 2004
We study conditions on a sequence of probability measures {μn}n on a commutative hypergroup K, which ensure that, for any representation π of K on a Hilbert space ℋπ and for any ξ ∈ ℋπ, (∫Kπx(ξ)dμn(x)) n converges to a π‐invariant member of ℋπ.
Liliana Pavel
wiley   +1 more source

Absolutely continuous measures and compact composition operator on spaces of Cauchy transforms

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 55, Page 2937-2945, 2004., 2004
The analytic self‐map of the unit disk D, φ is said to induce a composition operator Cφ from the Banach space X to the Banach space Y if Cφ(f) = f∘φ ∈ Y for all f ∈ X. For z ∈ D and α > 0, the families of weighted Cauchy transforms Fα are defined by f(z)=∫TKxα(z)dμ(x), where μ(x) is complex Borel measure, x belongs to the unit circle T, and the kernel ...
Yusuf Abu Muhanna, El-Bachir Yallaoui
wiley   +1 more source

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