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Found 58 Documents (Results 1–58)

Remarks on the Cauchy problem for multi-valued linear operators. (English) Zbl 0823.34062

Lumer, Günter (ed.) et al., Partial differential equations. Models in physics and biology. Contributions to the conference, held in Han-sur- Lesse, Belgium, in December 1993. Berlin: Akademie Verlag. Math. Res. 82, 174-187 (1994).
MSC:  34G20 47H04
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Families of subsets of a finite set and closed classes of Boolean functions. (English) Zbl 0817.05074

Frankl, P. (ed.) et al., Extremal problems for finite sets. Proceedings of the conference, held in Visegrád, Hungary between June 16-21, 1991. Budapest: János Bolyai Mathematical Society. Bolyai Soc. Math. Stud. 3, 375-396 (1994).
Reviewer: V.V.Gorlov (Minsk)
MSC:  05D05 94C10 06E30
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Uniqueness, strong forms of uniqueness and negative powers of contractions. (English) Zbl 0893.46043

Zemánek, Jaroslav (ed.), Functional analysis and operator theory. Proceedings of the 39th semester at the Stefan Banach International Mathematical Center in Warsaw, Poland, held March 2-May 30, 1992. Warsaw: Polish Academy of Sciences, Banach Cent. Publ. 30, 127-145 (1994).
Reviewer: T.Nakazi (Sapporo)
MSC:  46J20 42A20 47D03
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Nonexistence of analytically varying solutions to Hilbert’s 17th problem. (English) Zbl 0828.12001

Jacob, William B. (ed.) et al., Recent advances in real algebraic geometry and quadratic forms. Proceedings of the RAGSQUAD year, Berkeley, CA, USA, 1990-1991. Providence, RI: American Mathematical Society. Contemp. Math. 155, 107-117 (1994).
Reviewer: Charles N.Delzell
MSC:  12D15 14P15 11E25
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