Rudolf Ritz (1934–2016)

Rudolf Virchow

Virchow was one of the 19th century’s foremost leaders in medicine and pathology. He was also a public health activist, social reformer, politician, and anthropologist. Virchow was the only child of a farmer and city treasurer in Schivelbein, Germany. He had a strong interest in natural science. In 1839, he received a scholarship from the Prussian Military Academy, where he was given the opport...

12 Rudolf Ahlswede ,

One of the basic results in extremal set theory was discovered in [1] and rediscovered in [2]: For a given number of k-element subsets of an n-set the shadow, that is, the set of ( k 1)-element subsets contained in at least one of the specified k-element subsets, is minimal, if the k-element subsets are chosen as an initial segment in the squashed order (see [10]; called colex order in [liD, th...

The convergence of harmonic Ritz values, harmonic Ritz vectors and refined harmonic Ritz vectors

This paper concerns a harmonic projection method for computing an approximation to an eigenpair (λ, x) of a large matrix A. Given a target point τ and a subspace W that contains an approximation to x, the harmonic projection method returns an approximation (μ + τ, x̃) to (λ, x). Three convergence results are established as the deviation of x from W approaches zero. First, the harmonic Ritz value...

Rudolf Strijkers INTERNET FACTORIES

Guide to the Rudolf Hermann

An account of the Air Force Material Command cold war context.(1945-1991). Command Lineage, Scientific Achievement and Major Tenant Missions. CD and hard copy of pertinent pages. Series 5 Dayton 1945-1950 Location 5.03 Document Title Keeping the Edge, Volume II Date Aug 2003 Author Weitze, Karen Source Hqrs. Air Force Materiel Command, Wright-Patterson AFB Abstract An account of the Air Force M...