# Andrzej Sołtysiak papers

We give below a list of 38 papers by Andrzej Sołtysiak. Titles of papers have been translated into English.

- A Sołtysiak, Capacity of finite systems of elements in Banach algebras,
*Comment. Math. Prace Mat.***19**(1976), no. 2, 381–387.

- A Sołtysiak, Some remarks on the joint capacities in Banach algebras,
*Comment. Math. Prace Mat.***20**(1977), no. 1, 197–204.

- A Sołtysiak, On Banach algebras with closed set of algebraic elements,
*Comment. Math. Prace Mat.***20**(1977), no. 2, 479–484.

- A Sołtysiak, Algebraic elements in Banach algebras without nonzero quasinilpotents,
*Funct. Approx. Comment. Math.***12**(1982), 45–47.

- A Sołtysiak, On quasi-algebraic elements of Banach algebra,
*Funct. Approx. Comment. Math.***14**(1984), 15–16.

- A Sołtysiak, C K Fong, Existence of a multiplicative functional and joint spectra,
*Studia Math.***81**(1985), no. 2, 213–220.

- A Sołtysiak, Approximate point joint spectra and multiplicative functionals,
*Studia Math.***86**(1987), no. 3, 277–286.

- A Sołtysiak, V Müller, On the largest generalized joint spectrum,
*Comment. Math. Univ. Carolin.***29**(1988), no. 2, 255–259.

- A Sołtysiak, Joint spectra and multiplicative functionals,
*Colloq. Math.***56**(1988), no. 2, 357–366.

- A Sołtysiak, V Müller, Spectrum of generators of a noncommutative Banach algebra,
*Studia Math.***93**(1989), no. 1, 87–95.

- A Sołtysiak, A note on the almost left and almost right joint spectra of R. Harte,
*Comment. Math. Univ. Carolin.***30**(1989), no. 2, 317–320.

- A Sołtysiak, On $C^{∗}$ -algebras satisfying spectral maximum principles,
*Funct. Approx. Comment. Math.***18**(1989), 67–71.

- A Sołtysiak, On joint spectra of operators on a Banach space isomorphic to its square,
*Colloq. Math.***57**(1989), no. 2, 331–337.

- A Sołtysiak, On the projection property of approximate point joint spectra,
*Comment. Math. Prace Mat.***29**(1989), no. 1, 79–84.

- A Sołtysiak, A note on weakly compact operators,
*Comment. Math. Prace Mat.***29**(1990), no. 2, 297–300.

- A Sołtysiak, C K Fong, On the left and right joint spectra in Banach algebras,
*Studia Math.***97**(1990), no. 2, 151–156.

- A Sołtysiak, S Szufla, Existence theorems for $L_{\phi}$ -solutions of the Hammerstein integral equation in Banach spaces,
*Comment. Math. Prace Mat.***30**(1990), no. 1, 177–190.

- A Sołtysiak, On a certain class of subspectra,
*Comment. Math. Univ. Carolin.***32**(1991), no. 4, 715–721.

- A Sołtysiak, V Müller, Spectral radius formula for commuting Hilbert space operators,
*Studia Math.***103**(1992), no. 3, 329–333.

- A Sołtysiak, On the joint spectral radii of commuting Banach algebra elements,
*Studia Math.*105 (1993), no. 1, 93–99.

- A Sołtysiak, A J Pride, On joint spectra of noncommuting normal operators,
*Bull. Austral. Math. Soc.***48**(1993), no. 1, 163–170.

- A Sołtysiak, V Müller, On local joint capacities of operators,
*Czechoslovak Math. J.***43**(118) (1993), no. 4, 743–751.

- A Sołtysiak, P Rosenthal, Formulas for the joint spectral radius of noncommuting Banach algebra elements,
*Proc. Amer. Math. Soc.***123**(1995), no. 9, 2705–2708.

- A Sołtysiak, R Berntzen, On a conjecture of Jarosz,
*Comment. Math.*(*Prace Mat.*)**36**(1996), 39–45.

- A Sołtysiak, R Berntzen, On strong generation of $B(H)$ by two commutative $C^{∗}$ -algebras,
*Studia Math.***125**(1997), no. 2, 175–178.

- A Sołtysiak, R Berntzen, The Harte spectrum need not be contained in the Taylor spectrum,
*Comment. Math.*(*Prace Mat.*)**38**(1998), 29–35.

- A Sołtysiak, On joint spectra of non-commuting hyponormal operators,
*Bull. Austral. Math. Soc.***64**(2001), no. 1, 131–136.

- A Sołtysiak, The strong spectral extension property does not imply the multiplicative Hahn-Banach property, Studia Math.
**153**(2002), no. 3, 297–301.

- A Sołtysiak, M Chō, T Yamazaki, On approximate point joint spectrum of $p$-hyponormal and log-hyponormal operators, Comment. Math. (Prace Mat.)
**43**(2003), no. 1, 33–41.

- A Sołtysiak, J Krzysztof (Eds),
*Topological algebras, their applications, and related topics,*Polish Academy of Sciences, Institute of Mathematics, Warsaw, 2005. 411 pp.

- A Sołtysiak, On joint spectral radii in locally convex algebras,
*Studia Math.***175**(2006), no. 1, 73–82.

- A Sołtysiak, Topological joint spectrum of generators and continuous characters (355–362) in Function spaces,
*Contemp. Math.*,**435**, AMS, vi+394 pp.

- A Sołtysiak, R J Loy, V (Eds),
*Banach algebras*2009, Polish Academy of Sciences, Institute of Mathematics, Warsaw, 2010. 454 pp.

- A Sołtysiak, A Wawrzyńczyk, Ditkin's condition and ideals with at most countable hull in algebras of functions analytic in the unit disk,
*Comment. Math.***52**(2012), no. 1, 101–112.

- A Sołtysiak, A Wawrzyńczyk, Ideals with at most countable hull in certain algebras of functions analytic on the half-plane, Bol. Soc. Mat. Mexicana (3)
**19**(2013), no. 1, 91–100.

- A Sołtysiak, M Nowak, Toeplitz operators on backward shift invariant subspaces of $H^{p}$, J.
*Math. Anal. Appl.***481**(2020), no. 1, 123461, 10 pp.

- A Sołtysiak, M Nowak, P Sobolewski, M Wołoszkiewicz-Cyll, On kernels of Toeplitz operators,
*Anal. Math. Phys.***10**(2020), no. 4, Paper No. 85, 14 pp.

- A Sołtysiak, M Nowak, P Sobolewski, The orthogonal complement of $M(a)$ in $A(b)$,
*Studia Math.***260**(2021), no. 3, 327–340.

Last Updated September 2023