Bugajski, S.; Hellwig, K.-E.; Stulpe, W. On fuzzy random variables and statistical maps. (English) Zbl 1026.60501 Rep. Math. Phys. 41, No. 1, 1-11 (1998). MSC: 60E99 46N30 46N50 81S25 28E10 82B03 PDF BibTeX XML Cite \textit{S. Bugajski} et al., Rep. Math. Phys. 41, No. 1, 1--11 (1998; Zbl 1026.60501) Full Text: DOI
Hellwig, Karl-Eberhard; Wegner, Bernd Mathematics and theoretical physics II. A combined basic course for physicists and mathematicians. (Mathematik und Theoretische Physik II. Ein integrierter Grundkurs für Physiker und Mathematiker.) (German) Zbl 0795.00001 de Gruyter Lehrbuch. Berlin: de Gruyter. xii, 390 p. DM 58.00; öS 765.00; sFr 58.00 /sc (1993). Reviewer: W.Muschik (Berlin) MSC: 00A05 00-01 00A06 30-01 34-01 35-01 46-01 81-01 PDF BibTeX XML Cite \textit{K.-E. Hellwig} and \textit{B. Wegner}, Mathematik und Theoretische Physik II. Ein integrierter Grundkurs für Physiker und Mathematiker. Berlin: de Gruyter (1993; Zbl 0795.00001)
Hellwig, K.-E. Quantum measurements and information theory. (English) Zbl 0866.46048 Gielerak, R. (ed.) et al., Quantum groups and related topics. Proceedings of the first Max Born symposium, Wojnowice Castle, Wrocław, Poland, September 27-29, 1991. Dordrecht: Kluwer Academic Publishers. Math. Phys. Stud. 13, 211-221 (1992). Reviewer: W.Slowikowski (Aarhus) MSC: 46N50 81P15 PDF BibTeX XML Cite \textit{K. E. Hellwig}, Math. Phys. Stud. 13, 211--221 (1992; Zbl 0866.46048)
Hellwig, K.-E.; Singer, M. Distinction of classical convex structures in the general framework of statistical models. (English) Zbl 0774.46042 Measure theory, Proc. 2nd Winter Sch., Liptovský Ján/Czech. 1990, 79-84 (1990). MSC: 46N50 82C10 82B10 PDF BibTeX XML
Hellwig, K.-E. Conditional expectations and duals of instruments. (English) Zbl 0537.60033 Interpretations and foundations of quantum theory, Proc. Conf., Marburg 1979, 113-124 (1981). Reviewer: H.Cycon MSC: 60G20 46L51 46L53 46L54 81P20 60J99 PDF BibTeX XML
Cycon, H.; Hellwig, K.-E. Conditional expectations in generalized probability theory. (English) Zbl 0364.60007 J. Math. Phys. 18, 1154-1161 (1977). MSC: 60A05 28B05 46A40 47B60 PDF BibTeX XML Cite \textit{H. Cycon} and \textit{K. E. Hellwig}, J. Math. Phys. 18, 1154--1161 (1977; Zbl 0364.60007) Full Text: DOI