Contents of Number 1
Volume 69 / 2021
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Intrinsic linking and knotting are arbitrarily complex in directed graphs Bulletin Polish Acad. Sci. Math. 69 (2021) , 1-9 MSC: Primary 05C10; Secondary 57K10, 05C20, 05C35. DOI: 10.4064/ba210704-8-7
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A note on the solution set of the equation $[L_1^r,P_1]=[P_2,L_2^s]$ for given linear forms $L_1,L_2$ Bulletin Polish Acad. Sci. Math. 69 (2021) , 11-20 MSC: Primary 14R15, 13N15; Secondary 17B63. DOI: 10.4064/ba210123-12-7
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The mutual singularity of multifractal measures for some non-regular Moran fractals Bulletin Polish Acad. Sci. Math. 69 (2021) , 21-35 MSC: Primary 28A20; Secondary 28A78, 28A80. DOI: 10.4064/ba210216-9-10
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Solutions to a nonlinear Maxwell equation with two competing nonlinearities in $\mathbb{R}^3$ Bulletin Polish Acad. Sci. Math. 69 (2021) , 37-60 MSC: 35Q60, 35J20, 78A25. DOI: 10.4064/ba210731-19-8
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The ergodic decomposition defined by actions of amenable groups, part II: more about the role played by the ergodic invariant probability measures in the decomposition Bulletin Polish Acad. Sci. Math. 69 (2021) , 61-68 MSC: Primary 37A30; Secondary 22F10, 28A65, 28D05, 28D15, 37A15, 43A07, 47A35. DOI: 10.4064/ba210527-11-10
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Weyl's theorem for commuting tuples of paranormal and $\ast $-paranormal operators Bulletin Polish Acad. Sci. Math. 69 (2021) , 69-86 MSC: 47A10, 47A13, 47A53, 47A60, 47B20. DOI: 10.4064/ba210325-13-6
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Unions of chainable continua with the fixed point property Bulletin Polish Acad. Sci. Math. 69 (2021) , 87-95 MSC: Primary 54F15, 54H25; Secondary 54G20. DOI: 10.4064/ba210729-30-7
