2,471 research outputs found
Der Wandel der Informationspraxis in Forschung und Bibliothek
No full textHorstmann W, Jahn N, Schmidt B. Der Wandel der Informationspraxis in Forschung und Bibliothek. Zeitschrift für Bibliothekswesen und Bibliographie. 2015;62(2):073-079
Interest rate convexity and the volatility smile
Full text linkWhen pricing the convexity effect in irregular interest rate derivatives such as, e.g., Libor-in-arrears or CMS, one often ignores the volatility smile, which is quite pronounced in the interest rate options market. This note solves the problem of convexity by replicating the irregular interest flow or option with liquidly traded options with different strikes thereby taking into account the volatility smile. This idea is known among practitioners for pricing CMS caps. We approach the problem on a more general scale and apply the result to various examples. --interest rate options,volatility smile,convexity,,option replication
Fixing education for the AI age: Conrad Wolfram
No full textConrad Wolfram is the CEO and co-founder of Wolfram Research Europe and Strategic Director of Wolfram Research. He is a leading advocate for mathematics education reform and author of “The Math(s) Fix: An Education Blueprint for the AI Age”. He recently gave a public lecture at LSE on this topic. The following is an edited version of an interview by Neil Olver in the Mathematics Department
Requirements for successful privatization: Lessons from the Treuhandanstalt's approach
Full text linkThe paper analyses the Treuhandanstalt's privatization approach by putting it in a public choice perspective. It comes to the conclusion that the Treuhandanstalt had been very successful in reaching its economic and social targets. Economists might worry that the Treuhandanstalt's operation had accumulated too much waste caused by social considerations. And politicians might lament that its strategy implied that millions of people were ,,outplaced or ,,downsized in the name of privatization. But in terms of the interaction of economics and politics the Treuhandanstalt's performance had not been so far from the optimum.
Modelling turbulent effects of stellar feedback in cosmological simulations
No full textIn order to study the influence of turbulence on star formation, stellar feedback, and the mixing of metals into the intergalactic medium (IGM) in numerical experiments, we implemented a model for star formation and stellar feedback and employ it in cosmological large eddy simulations using a subgrid scale (SGS) turbulence model. We find that star formation decreases and the efficiency of feedback increases if only SGS terms related to the turbulent cascade and dissipation are incorporated into the equations of gas dynamics. This in turn leads to stronger outflows. Additional injection of turbulent energy by feedback, however, does not affect diagnostics like star formation rates (SFRs) or outflow radii significantly. We also show that turbulent diffusion of metal species does not necessarily lead to a higher enrichment in the IGM, while turbulent diffusion of internal energy results in a global SFR and stacked halo profiles that are almost indistinguishable from the case with no SGS model at all
Who are the Disciples and Admirers of an Author?
No full textWebcast sponsored by the Irving K. Barber Learning Centre and hosted by SLAIS. Recitation (the act of citing a given author or her/his works multiple times) provides an indication of the influence of a cited author. This study investigated patterns of citation and recitation across frequently cited authors' works to better understand how broadly citers have been influenced by cited authors and their publications. Dietmar Wolfram is Interim Dean & Professor School of Information Studies, University of Wisconsin-Milwaukee.Arts, Faculty ofLibrary, Archival and Information Studies (SLAIS), School ofUnreviewedFacult
Gram-Schmidt Process in Two Dimensions
No full textThe Gram-Schmidt process is a means for converting a set of linearly independent vectors into a set of orthonormal vectors. If the set of vectors spans the ambient vector space, then this produces an orthonormal basis for the vector spaceComponente Curricular::Educação Superior::Ciências Exatas e da Terra::Matemátic
Gram-Schmidt Process in Two Dimensions
No full textThe Gram-Schmidt process is a means for converting a set of linearly independent vectors into a set of orthonormal vectors. If the set of vectors spans the ambient vector space, then this produces an orthonormal basis for the vector spaceComponente Curricular::Educação Superior::Ciências Exatas e da Terra::Matemátic
Cross currency swap valuation
Full text linkCross currency swaps are powerful instruments to transfer assets or liabilities from one currency into another. The market charges for this a liquidity premium, the cross currency basis spread, which should be taken into account by the valuation methodology. We describe and compare two valuation methods for cross currency swaps which are based upon using two different discounting curves. The first method is very popular in practice but inconsistent with single currency swap valuation methods. The second method is consistent for all swap valuations but leads to mark-to-market values for single currency off market swaps, which can be quite different to standard valuation results. --interest rate swap,cross currency swap,basis spread
Gram-Schmidt Process in Two Dimensions
No full textThe Gram-Schmidt process is a means for converting a set of linearly independent vectors into a set of orthonormal vectors. If the set of vectors spans the ambient vector space, then this produces an orthonormal basis for the vector spaceComponente Curricular::Educação Superior::Ciências Exatas e da Terra::Matemátic
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