Abstract We show that analyst behavior changes in response to a randomly assigned shock exogenously varies the timeliness and cost of accessing mandatory disclosures cross-section investors: analysts reduce coverage issue less optimistic, more accurate, bold, informative forecasts. Our evidence indicates strategic component their behavior: are stronger among with incentives like affiliated or r...

Abstract We compare atmospheric temperature changes in satellite data and model ensembles performed under phases 5 6 of the Coupled Model Intercomparison Project (CMIP5 CMIP6). In lower stratosphere, multidecadal stratospheric cooling during period strong ozone depletion is smaller newer CMIP6 simulations than CMIP5 or data. troposphere, however, despite forcing climate sensitivity differences ...

We prove general reflection positivity results for both scalar fields and Dirac fields on a Riemannian manifold, and comment on applications to quantum field theory. As another application, we prove the inequality CD ≤ CN between Dirichlet and Neumann covariance operators on a manifold with a reflection.

Based on past contributions by Robert Schrader and Michael Karowski I review the problem of existence of interacting quantum field theory and present recent ideas and results on rigorous constructions. 1 Historical remarks The title of this essay is identical to that of a small conference at the FU-Berlin in honor of Michael Karowski and Robert Schrader at the occasion of their sixtyfifth birth...

We study Deligne’s conjecture on the monodromy weight filtration on the nearby cycles in the mixed characteristic case, and reduce it to the nondegeneracy of certain pairings in the semistable case. We also prove a related conjecture of Rapoport and Zink which uses only the image of the Cech restriction morphism, if Deligne’s conjecture holds for a general hyperplane section. In general we show...

1. I N T R O D U C T I O N (1.1) Cluster algebras are a class of commutative algebras defined by a three step process. The first step is to specify an initial seed s, that is some set of initial generators of an ambient field F . Second, a subset X of F is constructed by mutating the initial seed s, mutating the resulting seeds, mutating the result of those mutations, and so forth ad infinitum....

Deog Ki Hong and Stephen D.H. Hsu 1 Department of Physics, Pusan National University, Pusan 609-735, Korea [email protected] 2 Department of Physics, University of Oregon, Eugene OR 97403-5203 [email protected] (Dated: June 4, 2005) Abstract We elaborate on previous results concerning the positivity of the Euclidean path integral measure for low-energy modes in dense fermionic matter. We ...

The q-binomial coefficients [ n m ] = ∏m i=1(1 − qn−m+i)/(1 − q), for integers 0 ≤ m ≤ n, are known to be polynomials with non-negative integer coefficients. This readily follows from the q-binomial theorem, or the many combinatorial interpretations of [ n m ] . In this note we conjecture an arithmetically motivated generalisation of the non-negativity property for products of ratios of q-facto...