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Träfflista för sökning "AMNE:(NATURAL SCIENCES Mathematics Mathematical Analysis) ;mspu:(publicationother)"

Sökning: AMNE:(NATURAL SCIENCES Mathematics Mathematical Analysis) > Annan publikation

  • Resultat 1-10 av 248
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1.
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2.
  • Coriasco, Sandro, et al. (författare)
  • Global wave front set of modulation space type
  • Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
    • We introduce global wave-front sets WFB(f), f in S'(Rd), with respect to suitable Banach or Fréchet spaces B. An important special case is given by the modulation spaces B=M(ω,B), where ω is an appropriate weight function and B is a translation invariant Banach function space. We show that the standard properties for known notions of wave-front set extend to WFB(f). In particular, we prove that microlocality and microellipticity hold for a class of globally defined pseudo-differential operators Opt(a), acting continuouslyon the involved spaces.
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4.
  • Kemppe, Berit, 1978- (författare)
  • An ordering of measures induced by plurisubharmonic functions
  • Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
    • We study an ordering of measures induced by plurisubharmonic functions. This ordering arises naturally in connection with problems related to negative plurisubharmonic functions. We study maximality with respect to the ordering and a related notion of minimality for certain plurisubharmonic functions. The ordering is then applied to the problem of weak*-convergence of measures, in particular Monge-Ampère measures.
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5.
  • Kemppe, Berit, 1978- (författare)
  • On boundary values of plurisubharmonic functions
  • Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
    • In this paper we describe how boundary values of bounded plurisubharmonic functions can be defined in terms of measures with support on the boundary. We do this by approximating the boundary measures with measures on the interior of the domain, and present conditions on the approximation which makes the procedure suitable for defining boundary values of certain plurisubharmonic functions.
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6.
  • Landtblom, Karin, 1959- (författare)
  • Afforded opportunities to learn mean, median, and mode in textbook tasks
  • Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
    • This paper presents an analysis of tasks about mean, median, and mode in seven textbook series for students aged 10–13. All tasks were coded against a set of categories concerning context, mathematical properties, input objects, transformations, and output objects. The categories gives a possibility to analyse afforded opportunities to conceptualise the measures with support from the tasks. Analyses of proportions of the tasks showed that tasks in general provide procedural transformations with quantitative values about the mean. Through examining different textbooks, the results allow us to take a more general view of what opportunities to learn is afforded to students. Altogether the textbooks do not afford enough explicit contexts focusing on mathematical properties. Implications for task design are discussed.
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7.
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8.
  • Lundqvist, Johannes, 1981- (författare)
  • A local duality principle for ideals of pure dimension
  • Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
    • We prove that a certain cohomological residue associated to an ideal of pure dimension is annihilated exactly by the ideal. The cohomological residue is quite explicit and generalizes the classical local Grothendieck residue and the cohomological residue of Passare.
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9.
  • Lundqvist, Johannes, 1981- (författare)
  • An effective uniform Artin-Rees lemma
  • Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
    • We prove a global uniform Artin-Rees lemma type theorem for sections of ample line bundles over smooth projective varieties. This result is used to prove an Artin-Rees lemma for the polynomial ring with uniform degree bounds. The proof is based on multidimensional residue calculus.
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10.
  • Lundqvist, Johannes, 1981- (författare)
  • An explicit calculation of the Ronkin function
  • Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
    • We calculate the second order derivatives of the Ronkin function in the case of an affine linear polynomial in three variables and give an expression of them in terms of complete elliptic integrals and hypergeometric functions. This gives a semi-explicit expression of the associated Monge-Ampère measure, the Ronkin measure.
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  • Resultat 1-10 av 248
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