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Träfflista för sökning "AMNE:(NATURVETENSKAP Matematik) srt2:(1980-2009)"

Search: AMNE:(NATURVETENSKAP Matematik) > (1980-2009)

  • Result 1-10 of 11175
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1.
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2.
  • Jain, P., et al. (author)
  • Inequalities and properties of some generalized Orlicz classes and spaces
  • 2007
  • In: Acta Mathematica Hungarica. - : Springer Science and Business Media LLC. - 0236-5294 .- 1588-2632. ; 117:1-2, s. 161-174
  • Journal article (peer-reviewed)abstract
    • We discuss and complement the knowledge about generalized Orlicz classes and Orlicz spaces X Φ obtained by replacing the space L 1 in the classical construction by an arbitrary Banach function space X. Our main aim is to focus on the task to study inequalities in such spaces. We prove a number of new inequalities and also natural generalizations of some classical ones (e.g., Minkowski’s, Hölder’s and Young’s inequalities). Moreover, a number of other basic facts for further study of inequalities and function spaces are included.
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3.
  • Kuliev, K., et al. (author)
  • An extension of Rothe´s method to noncylindrical domains
  • 2007
  • In: Applications of Mathematics. - : Institute of Mathematics, Czech Academy of Sciences. - 0862-7940 .- 1572-9109. ; 52:5, s. 365-389
  • Journal article (peer-reviewed)abstract
    • In this paper Rothe's classical method is extended so that it can be used to solve some linear parabolic boundary value problems in non-cylindrical domains. The corresponding existence and uniqueness theorems are proved and some further results and generalizations are discussed and applied.
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4.
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5.
  • Okpoti, Christopher, et al. (author)
  • An equivalence theorem for some integral conditions with general measures related to Hardy´s inequality
  • 2007
  • In: Journal of Mathematical Analysis and Applications. - : Elsevier BV. - 0022-247X .- 1096-0813. ; 326:1, s. 398-413
  • Journal article (peer-reviewed)abstract
    • It is proved that, besides the usual Muckenhoupt condition, there exist four different scales of conditions for characterizing the Hardy type inequality with general measures for the case 1<pq<∞. In fact, an even more general equivalence theorem of independent interest is proved and discussed.
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6.
  • Persson, Lars-Erik, et al. (author)
  • Some scales of equivalent weight characterizations of Hardy´s inequality: the case q < p
  • 2007
  • In: Mathematical Inequalities & Applications. - : Element d.o.o.. - 1331-4343 .- 1848-9966. ; 10:2, s. 267-279
  • Journal article (peer-reviewed)abstract
    • We consider the weighted Hardy inequality                                                1/q                            1/p                                       q                      ∞                                       ∞                             x                                                                 f p (x)v(x)dx                               f (t)dt   u(x)dx       C                    0      0                                0for the case 0 < q < p < ∞, p > 1 . The weights u(x) and v(x) for which this inequalityholds for all f (x)    0 may be characterized by the Mazya-Rosin or by the Persson-Stepanovconditions. In this paper, we show that these conditions are not unique and can be supplementedby some continuous scales of conditions and we prove their equivalence. The results for the dualoperator which do not follow by duality when 0 < q < 1 are also given.
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7.
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8.
  • Persson, Lars-Erik, et al. (author)
  • Weighted inequalities of Hardy type for matrix operators: The case q
  • 2007
  • In: Mathematical Inequalities & Applications. - : Element d.o.o.. - 1331-4343 .- 1848-9966. ; 10:4, s. 843-861
  • Journal article (peer-reviewed)abstract
    • A non-negative triangular matrix operator is considered in weighted Lebesgue spaces ofsequences. Under some additional conditions on the matrix, some new weight characterizationsfor discrete Hardy type inequalities with matrix operator are proved for the case 1 < q < p < ∞.Some further results are pointed out.
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9.
  • Andersson, Fredrik K., et al. (author)
  • The mathematics of internet search engines
  • 2008
  • In: Acta Applicandae Mathematicae - An International Survey Journal on Applying Mathematics and Mathematical Applications. - : Springer. - 0167-8019 .- 1572-9036. ; 104:2, s. 211-242
  • Journal article (peer-reviewed)abstract
    • This article presents a survey of techniques for ranking results in search engines, with emphasis on link-based ranking methods and the PageRank algorithm. The problem of selecting, in relation to a user search query, the most relevant documents from an unstructured source such as the WWW is discussed in detail. The need for extending classical information retrieval techniques such as boolean searching and vector space models with link-based ranking methods is demonstrated. The PageRank algorithm is introduced, and its numerical and spectral properties are discussed. The article concludes with an alternative means of computing PageRank, along with some example applications of this new method.
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10.
  • Asratian, Armen, et al. (author)
  • Proper path-factors and interval edge-coloring of (3,4)-biregular bigraphs
  • 2009
  • In: Journal of Graph Theory. - : Wiley Periodicals Inc.. - 0364-9024 .- 1097-0118. ; 61:2, s. 88-97
  • Journal article (peer-reviewed)abstract
    • An interval coloring of a graph G is a proper coloring of E(G) by positive integers such that the colors on the edges incident to any vertex are consecutive. A (3,4)-biregular bigraph is a bipartite graph in which each vertex of one part has degree 3 and each vertex of the other has degree 4; it is unknown whether these all have interval colorings. We prove that G has an interval coloring using 6 colors when G is a (3,4)-biregular bigraph having a spanning subgraph whose components are paths with endpoints at 3-valent vertices and lengths in {2, 4, 6, 8}. We provide several sufficient conditions for the existence of such a subgraph.
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  • Result 1-10 of 11175
Type of publication
journal article (5713)
conference paper (1956)
reports (893)
doctoral thesis (758)
other publication (725)
licentiate thesis (420)
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book chapter (382)
book (196)
editorial collection (46)
review (32)
editorial proceedings (30)
research review (21)
patent (3)
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Type of content
peer-reviewed (7023)
other academic/artistic (3988)
pop. science, debate, etc. (164)
Author/Editor
Persson, Lars-Erik (245)
Öberg, Sven (238)
Jones, R. (196)
Briddon, P. R. (178)
Maligranda, Lech (166)
Khrennikov, Andrei (118)
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Åström, Karl (113)
Heyden, Anders (97)
Nordström, Jan (95)
Häggström, Olle, 196 ... (86)
Patriksson, Michael, ... (80)
Ibragimov, Nail H. (79)
Kahl, Fredrik (74)
Lötstedt, Per (74)
Kurasov, Pavel (72)
Euler, Norbert (67)
Gustafsson, Bertil (64)
Vännman, Kerstin (63)
Frisén, Marianne, 19 ... (63)
Lindgren, Georg (60)
Wall, Peter (55)
Stolin, Alexander, 1 ... (52)
Holmquist, Björn (52)
Khrennikov, Andrei, ... (51)
Wennberg, Bernt, 196 ... (51)
Asadzadeh, Mohammad, ... (51)
Bergstrom, R (48)
Holmgren, Sverker (48)
Hansbo, Peter F G, 1 ... (44)
Rönnqvist, Mikael, 1 ... (44)
Janson, Svante (43)
Andersson, Eva M., 1 ... (42)
Hedenmalm, Håkan, 19 ... (41)
Andersson, Mats, 195 ... (39)
Taube, Adam (38)
Rychlik, Igor, 1952 (38)
Mazorchuk, Volodymyr (37)
Silvestrov, Sergei (37)
Sparr, Gunnar (37)
Svärd, Magnus (37)
Coutinho, J. (36)
Constantin, Adrian (35)
Logg, Anders, 1976 (34)
Björn, Anders, 1966- (34)
Gulliksson, Mårten (34)
Lennerstad, Håkan (33)
Goss, J.P. (33)
Larsson, Torbjörn (33)
Jagers, Peter, 1941 (33)
Rychlik, Igor (33)
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University
Chalmers University of Technology (2229)
University of Gothenburg (2068)
Uppsala University (1686)
Lund University (1542)
Luleå University of Technology (1186)
Linköping University (1147)
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Royal Institute of Technology (1027)
Umeå University (492)
Stockholm University (487)
Linnaeus University (374)
Mid Sweden University (310)
Karlstad University (244)
Mälardalen University (242)
Blekinge Institute of Technology (212)
Örebro University (124)
Jönköping University (92)
Stockholm School of Economics (89)
Halmstad University (52)
Karolinska Institutet (45)
University of Gävle (44)
University West (35)
University of Borås (35)
Högskolan Dalarna (35)
Malmö University (30)
University of Skövde (30)
Södertörn University (26)
Swedish University of Agricultural Sciences (19)
VTI - The Swedish National Road and Transport Research Institute (18)
Kristianstad University College (8)
RISE (7)
The Swedish School of Sport and Health Sciences (6)
Swedish Agency for Marine and Water Management (1)
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Language
English (10676)
Swedish (381)
Russian (57)
Polish (19)
German (14)
French (12)
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Norwegian (4)
Spanish (3)
Chinese (3)
Esperanto (3)
Dutch (1)
Portuguese (1)
Hungarian (1)
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Research subject (UKÄ/SCB)
Natural sciences (11163)
Engineering and Technology (556)
Social Sciences (276)
Medical and Health Sciences (95)
Humanities (73)
Agricultural Sciences (13)

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