Solvability
91Problems in loop theory and quasigroup theory — In mathematics, especially abstract algebra, loop theory and quasigroup theory are active research areas with many open problems. As in other areas of mathematics, such problems are often made public at professional conferences and meetings. Many …
92Libyan Investment Authority — Infobox Company company name = Libyan Investment Authority company company type = Private foundation = 2006 location = Office No. 99, 9th Floor El Fateh Tower, Tripoli, Libya key people = Baghdadi Mahmudi (Chairman) Muhammad Layas (President and… …
93Undecidable problem — In computability theory and computational complexity theory, an undecidable problem is a decision problem for which it is impossible to construct an algorithm that leads to a yes or no answer the problem is not decidable.A decision problem is any …
94Anchorage Police Department — Infobox Law enforcement agency agencyname = Anchorage Police Department commonname = Anchorage Police Department abbreviation = APD patch = ANCHORAGEPOLICEDEPARTMENTPATCH.jpg motto = mottotranslated = formedyear = preceding1 = Municipal Police… …
95Recursive languages and sets — This article is a temporary experiment to see whether it is feasible and desirable to merge the articles Recursive set, Recursive language, Decidable language, Decidable problem and Undecidable problem. Input on how best to do this is very much… …
96Vagif Guliyev — Infobox Person image size = 150px name = Vagif Guliyev Vaqif Sabir oğlu Quliyev nationality = flagicon|Azerbaijan Azerbaijani caption = birth date = 1957 birth place = Salyan, Azerbaijan SSR USSR death date = death place = education = occupation …
97Polynomial conjoint measurement — is an extension of the theory of conjoint measurement to three or more attributes. It was initially developed by the mathematical psychologists David Krantz (1968) and Amos Tversky (1967). The theory was given a comprehensive mathematical… …
98Hilbert space — For the Hilbert space filling curve, see Hilbert curve. Hilbert spaces can be used to study the harmonics of vibrating strings. The mathematical concept of a Hilbert space, named after David Hilbert, generalizes the notion of Euclidean space. It… …
99Brouwer-Hilbert controversy — A foundational controversy in twentieth century history of mathematics opposed L. E. J. Brouwer, a supporter of intuitionism, and David Hilbert, the founder of formalism.BackgroundThe background for the controversy was set with David Hilbert s… …
100Timeline of algebra and geometry — A timeline of algebra and geometryBefore 1000 BC* ca. 2000 BC Scotland, Carved Stone Balls exhibit a variety of symmetries including all of the symmetries of Platonic solids. * 1800 BC Moscow Mathematical Papyrus, findings volume of a frustum *… …
