Georg Richard Lewin †

Georg Bauer

On a Problem of Lewin

A digraph G is called primitive if for some positive integer k, there is a walk of length exactly k from each vertex u to each vertex v (possibly u again). If G is primitive, the smallest such k is called the exponent of G, denoted by exp(G). In 1971, M. Lewin introduced the parameter l(G) for a primitive digraph G. It is the smallest k for which there is both a walk of length k and a walk of l...

Editorial Atypical Speech Georg

One of the most important aspects of spoken language is its large degree of variability. Variability in speech is caused by many different sources, for instance, changes of the acoustic environment or transmission channel and differences between speakers or various speaking styles. Successful speech processing systems typically combine several different means to cope with the unwanted variabili...

Georg Friedrich Händel's strokes.

Georg Friedrich Händel was a musical giant and probably the first composer to be the manager and promoter of his own works. The story of his life and illnesses is full of myths, invented and embellished by various biographies. Existing pathographies written by authors from various specialities suggested he suffered from psychiatric diseases like cyclothymia or mania and rheumatologic disorders ...

Georg Hegel’s Phenomenology of Spirit

The Anglophone philosophical world is currently riding a swelling wave of enthusiasm for a big, dense, blockbuster of a book by the previously unknown Jena philosopher, Georg Hegel. His Phenomenology of Spirit, originally in German, now available also in English, picks up and weaves together in a surprising and wholly original way a large number of today’s most fashionable ideas. Although he ne...