English
Related papers

Related papers: Variational proof of conditional expectations

200 papers

Factoring a wave function into marginal and conditional factors partitions the subsystem kinetic energy into two terms. The first depends solely on the marginal wave function, through its gauge-covariant derivative, while the second depends…

Quantum Physics · Physics 2022-04-06 Ryan Requist , Chen Li , E. K. U. Gross

We consider an inverse extremal problem for variational functionals on arbitrary time scales. Using the Euler-Lagrange equation and the strengthened Legendre condition, we derive a general form for a variational functional that attains a…

Optimization and Control · Mathematics 2014-05-07 Monika Dryl , Agnieszka B. Malinowska , Delfim F. M. Torres

Let X(t) be a Gaussian random field R d $\rightarrow$ R. Using the notion of (d -- 1)-integral geometric measures, we establish a relation between (a) the volume of the level set (b) the number of crossings of the restriction of the random…

Probability · Mathematics 2018-11-06 Diego Armentano , Jean-Marc Azais , David Ginsbourger , José Rafael Leon

We propose the assumption of quantum mechanics on a discrete space and time, which implies the modification of mathematical expressions for some postulates of quantum mechanics. In particular we have a Hilbert space where the vectors are…

Quantum Physics · Physics 2007-05-23 M. Lorente

We make an estimate of the likelihood function for the Higgs vacuum expectation value by imposing anthropic constraints on the existence of atoms while allowing the other parameters of the Standard Model to also be variable. We argue that…

High Energy Physics - Phenomenology · Physics 2010-04-22 John F. Donoghue , Koushik Dutta , Andreas Ross , Max Tegmark

We provide a pointwise bipolar theorem for liminf-closed convex sets of positive Borel measurable functions on a sigma-compact metric space without the assumption that the polar is a tight set of measures. As applications we derive a…

Functional Analysis · Mathematics 2019-02-12 Daniel Bartl , Michael Kupper

We give some sufficient conditions for preserving of the second term in the spectral asymptotics of a compact operator under the perturbation of the metrics in the Hilbert space.

Spectral Theory · Mathematics 2019-08-27 Alexander I. Nazarov

We show that the anomalous magnetic moment of fermion in the gauge-Higgs unification is finite in any spacetime dimensions, which is a new predictive physical observable similar to the Higgs mass.

High Energy Physics - Phenomenology · Physics 2008-11-26 Yuki Adachi , C. S. Lim , Nobuhito Maru

For an analogon of the free Wess-Zumino model on Ricci flat spacetimes, the relation between a conserved `supercurrent' and the point-separated improved energy momentum tensor is investigated and a similar relation as on Minkowski space is…

General Relativity and Quantum Cosmology · Physics 2007-05-23 M. Koehler

We study a category of probability spaces and measure-preserving Markov kernels up to almost sure equality. This category contains, among its isomorphisms, mod-zero isomorphisms of probability spaces. It also gives an isomorphism between…

Probability · Mathematics 2025-08-05 Noé Ensarguet , Paolo Perrone

Considering second variations about a given minimizer of a causal variational principle, we derive positive functionals in space-time. It is shown that the strict positivity of these functionals ensures that the minimizer is nonlinearly…

Mathematical Physics · Physics 2019-02-19 Felix Finster

We derive a variational formulation for the scalar wave equation in the second-order formulation on bounded Lipschitz domains and homogeneous initial conditions. We investigate a variational framework in a bounded space-time cylinder $Q$…

Numerical Analysis · Mathematics 2026-01-14 Marco Zank

It is shown how in principle for non-abelian gauge theories it is possible in the finite volume hamiltonian framework to make sense of calculating the expectation value of ||A||^2=\int d^3x(A^a_i(x))^2. Gauge invariance requires one to…

High Energy Physics - Theory · Physics 2008-11-26 L. Stodolsky , Pierre van Baal , V. I. Zakharov

In this paper, we propose some algorithms for the simulation of the distribution of certain diffusions conditioned on terminal point. We prove that the conditional distribution is absolutely continuous with respect to the distribution of…

Statistics Theory · Mathematics 2007-06-13 Bernard Delyon , Ying Hu

It is shown that the algebraic structure of finite Heisenberg groups associated with the tensor product of two Hilbert spaces leads to a simple demonstration valid in all Hilbert space dimensions of the impossibility of non-contextual…

High Energy Physics - Theory · Physics 2007-05-23 Daniel I. Fivel

Let $(\Omega, \mathcal{F}, \mathbf{P})$ be a probability space, $\xi$ be a random variable on $(\Omega, \mathcal{F}, \mathbf{P})$, $\mathcal{G}$ be a sub-$\sigma$-algebra of $\mathcal{F}$, and let $\mathbf{E}^\mathcal{G} = \mathbf{ E}(\cdot…

Probability · Mathematics 2020-08-18 Eugene Shargorodsky , Teo Sharia

We develop a synthesis of orthomodular logic (projections as propositions) with operator fixed-point theory in Hilbert spaces. First, we introduce an anchored implication connective $A \Rightarrow^{\mathrm{comm}}_{P} B$, defined…

Functional Analysis · Mathematics 2025-08-13 Faruk Alpay , Bugra Kilictas , Taylan Alpay

We consider singularly perturbed gradient flows in Hilbert spaces, driven by a time-dependent, nonconvex, and nonsmooth energy, and address the convergence of their solutions to curves of critical points of the driving energy functional.…

Analysis of PDEs · Mathematics 2026-03-19 Virginia Agostiniani , Riccarda Rossi , Giuseppe Savaré

We show that the viscous Camassa-Holm equation subject to an external force, and where the viscosity term is given by second order differential operator in divergence form has a global attractors in the energy space $H^1$. Moreover, we…

Dynamical Systems · Mathematics 2007-05-23 Milena Stanislavova , Atanas Stefanov

We formulate fractional difference equations of Riemann-Liouville and Caputo type in a functional analytical framework. Main results are existence of solutions on Hilbert space-valued weighted sequence spaces and a condition for stability…

‹ Prev 1 8 9 10 Next ›