Многообразие положительной секционной кривизны с фундаментальной группой
Я.В. Базайкин (1999)
Sibirskij matematiceskij zurnal
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Я.В. Базайкин (1999)
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Е.Т. Ивлев (1967)
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В.К. Туркин ([unknown])
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В.А. Шлык (1993)
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А.Е. Залесский, И.Д. Супруненко (1990)
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Alain Haraux (2005)
Annales Polonici Mathematici
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It is quite natural to conjecture that a positively homogeneous function with degree d ≥ 2 on satisfies the Łojasiewicz gradient inequality with exponent θ = 1/d without any need for an analyticity assumption. We show that this property is true under some additional hypotheses, but not always, even for N = 2.
А.Л. Гаркави (1997)
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Д.Е. Вольпер (1994)
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А.А. Лебедев (1997)
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Р. Гончигдорж (1982)
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Dachun Yang (2003)
Studia Mathematica
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Let Γ be a compact d-set in ℝⁿ with 0 < d ≤ n, which includes various kinds of fractals. The author shows that the Besov spaces defined by two different and equivalent methods, namely, via traces and quarkonial decompositions in the sense of Triebel are the same spaces as those obtained by regarding Γ as a space of homogeneous type when 0 < s < 1, 1 < p < ∞ and 1 ≤ q ≤ ∞.
Н.А. Жарковская (1975)
Matematiceskij sbornik
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М.П. Овчинцев (1996)
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А.П. Ильиных (1995)
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А.Р. Миротин (1998)
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Taras Banakh, Dušan Repovš (2016)
Colloquium Mathematicae
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For every metric space X we introduce two cardinal characteristics and describing the capacity of balls in X. We prove that these cardinal characteristics are invariant under coarse equivalence, and that two ultrametric spaces X,Y are coarsely equivalent if . This implies that an ultrametric space X is coarsely equivalent to an isometrically homogeneous ultrametric space if and only if . Moreover, two isometrically homogeneous ultrametric spaces X,Y are coarsely equivalent if and...
М.А. Чешкова (1995)
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