Two dimensional general covariance from three dimensions [PDF]
, 1993 A 3d generally covariant field theory having some unusual properties is described. The theory has a degenerate 3-metric which effectively makes it a 2d field theory in disguise.
Arnowitt A +20 more
core +3 more sources
Explicit decomposition of a rational prime in a cubic field
International Journal of Mathematics and Mathematical Sciences, 2006 We give the explicit decomposition of the principal ideal 〈p〉 (p prime) in a cubic field.
Saban Alaca +2 more
doaj +1 more source
Wavelet-based systematic risk estimation: application on GCC stock markets: the Saudi Arabia case
Quantitative Finance and Economics, 2020 Systematic risk estimation is widely applied by investors and managers in order to predict risks in the market. One of the most applied measures of risk is the so-called Capital Asset Pricing Model, shortly CAPM.
Anouar Ben Mabrouk
doaj +1 more source
A characterization of half-factorial orders in algebraic number fields [PDF]
arXiv, 2023 We give an algebraic characterization of half-factorial orders in algebraic number fields. This generalizes prior results for seminormal orders and for orders in quadratic number fields.
arxiv
Singular Moduli that are Algebraic Units [PDF]
Algebra Number Theory 9 (2015) 1515-1524, 2014 We prove that only finitely many $j$-invariants of elliptic curves with complex multiplication are algebraic units. A rephrased and generalized version of this result resembles Siegel's Theorem on integral points of algebraic curves.
arxiv +1 more source
On multi-graviton and multi-gravitino gauge theories [PDF]
, 2003 This paper studies nonlinear deformations of the linear gauge theory of any number of spin-2 and spin-3/2 fields with general formal multiplication rules in place of standard Grassmann rules for manipulating the fields, in four spacetime dimensions ...
Anco S C +20 more
core +2 more sources
Analytic construction of multi-brane solutions in cubic string field theory for any brane number [PDF]
Progress of Theoretical and Experimental Physics, 2019 We present an analytic construction of multi-brane solutions with any integer brane number in cubic open string field theory (CSFT) on the basis of the ${K\!Bc}$ algebra.
H. Hata
semanticscholar +1 more source
Measuring the gap between elicited and revealed risk for investors: An empirical study
FINANCIAL PLANNING REVIEW, Volume 5, Issue 4, December 2022., 2022 Abstract Financial advisors use questionnaires and discussions with clients to determine investment goals, elicit risk preference and tolerance and establish a suitable portfolio allocation for different risk categories. Financial institutions assign risk ratings to their financial products.
John R. J. Thompson +4 more
wiley +1 more source
Evaluation of the convolution sum involving the sum of divisors function for 22, 44 and 52
Open Mathematics, 2017 The convolution sum, ∑(l,m)∈N02αl+βm=nσ(l)σ(m), $ \begin{array}{} \sum\limits_{{(l\, ,m)\in \mathbb{N}_{0}^{2}}\atop{\alpha \,l+\beta\, m=n}} \sigma(l)\sigma(m), \end{array} $ where αβ = 22, 44, 52, is evaluated for all natural numbers n. Modular forms
Ntienjem Ebénézer
doaj +1 more source
Which canonical algebras are derived equivalent to incidence algebras of posets? [PDF]
Communications in Algebra 36 (2008), 4599-4606, 2007 We give a full description of all the canonical algebras over an algebraically closed field that are derived equivalent to incidence algebras of finite posets. These are the canonical algebras whose number of weights is either 2 or 3.
arxiv +1 more source