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A square-ordered field, also called Hilbert field of type (A), is understood to be an ordered field all of whose positive elements are squares. The problem of classifying, up to isomorphism, allâ€¦ (More)

- JosÃ© Antonio Cuenca Mira, Erik DarpÃ¶, Ernst-Wolfgang Dieterich
- 2009

An absolute valued algebra is a non-zero real algebra that is equipped with a multiplicative norm. We classify all finite dimensional absolute valued algebras having a non-zero central idempotent orâ€¦ (More)

We present a short and rather self-contained introduction to the theory of finite dimensional division algebras, setting out from the basic definitions and leading up to recent results and currentâ€¦ (More)

By a rotation in a Euclidean space V of even dimension we mean an orthogonal linear operator on V which is an orthogonal direct sum of rotations in 2-dimensional linear subspaces of V by a commonâ€¦ (More)

A dissident map on a finite-dimensional euclidean vector space V is understood to be a linear map Î· : V âˆ§V â†’ V such that v, w, Î·(vâˆ§w) are linearly independent whenever v, w âˆˆ V are. This notion of aâ€¦ (More)

- Erik DarpÃ¶, Ernst-Wolfgang Dieterich
- 2011

For any real division algebra A of finite dimension greater than one, the signs of the determinants of left multiplication and right multiplication by an element a âˆˆ A\{0} are shown to form anâ€¦ (More)

Given a euclidean vector space V , a linear map Î· : V âˆ§ V â†’ V is called dissident in case v, w, Î·(vâˆ§w) are linearly independent whenever so are v, w âˆˆ V . The problem of classifying all realâ€¦ (More)

- Ernst-Wolfgang Dieterich, William Baier, Hermann Doose, Ingrid E. B. Tuxhorn, H Fichsel
- Neuropediatrics
- 1985

The purpose of the follow-up study was to determine whether modern therapy with ethosuximide and/or valproate with/without phenobarbitone and its derivatives improves the longterm prognosis ofâ€¦ (More)

- Ernst-Wolfgang Dieterich, A Steveling, Anton Lukas, N Seyfeddinipur, Juergen Spranger
- Neuropediatrics
- 1980

Children of epileptic mothers have a higher risk for major malformations. A similar increase of major malformations is observed in children of epileptic fathers suggesting that the majorâ€¦ (More)

- Peter Gutjahr, Ernst-Wolfgang Dieterich
- Deutsche medizinische Wochenschrift
- 1979

One boy, given radiotherapy and cytostatic drugs for a rhabdomyosarcoma died nine years later of acute leukaemia. A girl, who had received radiotherapy for an inoperable suprasellar tumour and alsoâ€¦ (More)