Results 241 to 250 of about 2,300,127 (311)
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2015
Presheaves of spectra have been in use for some time. The original applications were in algebraic K -theory, but they now appear in various other areas. A simple existence proof for the stable model structure for presheaves of spectra appears in the first section of this chapter.
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Presheaves of spectra have been in use for some time. The original applications were in algebraic K -theory, but they now appear in various other areas. A simple existence proof for the stable model structure for presheaves of spectra appears in the first section of this chapter.
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Bulletin of the Brazilian Mathematical Society, 2003
This is a survey on recent work on spaces of algebraic cycles, focusing on spaces of real and quaternionic cycles and their relation to equivariant Eilenberg-MacLane spaces. The main theme is connected to the principle according to which algebraic cycles constitute natural models for classifying spaces in topology.
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This is a survey on recent work on spaces of algebraic cycles, focusing on spaces of real and quaternionic cycles and their relation to equivariant Eilenberg-MacLane spaces. The main theme is connected to the principle according to which algebraic cycles constitute natural models for classifying spaces in topology.
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1974
The time has come to consider special cases. The first result is that for normal operators, the most amenable large class known, the worst spectral pathology cannot occur.
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The time has come to consider special cases. The first result is that for normal operators, the most amenable large class known, the worst spectral pathology cannot occur.
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Science & Technology Libraries, 1991
Spectra are important sources of information about atoms and molecules. This paper surveys the various types of spectra and the nature of what each reveals about atomic or molecular structure or properties. A brief history of the development of spectrography is included as well as a bibliography of sources for additional reading on the topic.
Gladys Odegaard, Julie M. Hurd
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Spectra are important sources of information about atoms and molecules. This paper surveys the various types of spectra and the nature of what each reveals about atomic or molecular structure or properties. A brief history of the development of spectrography is included as well as a bibliography of sources for additional reading on the topic.
Gladys Odegaard, Julie M. Hurd
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2005
The k-spectrum of a word is the multiset of its non-contiguous subwords of length k. For given k, how small can n be for a pair of different words of length n to exist, with equal k- spectra? From the Thue-Morse word we find that n is at most 2k. The construction of this paper decreases this upper bound to θk, where $\bumpeq$ is the golden ratio; the ...
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The k-spectrum of a word is the multiset of its non-contiguous subwords of length k. For given k, how small can n be for a pair of different words of length n to exist, with equal k- spectra? From the Thue-Morse word we find that n is at most 2k. The construction of this paper decreases this upper bound to θk, where $\bumpeq$ is the golden ratio; the ...
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Australas. J Comb., 2022 Summary: The purpose of this paper is to introduce a model to study structures which are widely present in public transportation networks. We show that, through hypergraphs, one can describe these structures and investigate the relation between their spectra. To this aim, we extend the structure of \((m,k)\)-stars on graphs to hypergraphs: the \((m,k)\)
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1974
It is often useful to ask of a point in the spectrum of an operator how it got there. To say that A is in the spectrum of A means that A — λ is not invertible. The question reduces therefore to this: why is a non-invertible operator not invertible?
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It is often useful to ask of a point in the spectrum of an operator how it got there. To say that A is in the spectrum of A means that A — λ is not invertible. The question reduces therefore to this: why is a non-invertible operator not invertible?
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2012
This book gives an elementary treatment of the basic material about graph spectra, both for ordinary, and Laplace and Seidel spectra. The text progresses systematically, by covering standard topics before presenting some new material on trees, strongly regular graphs, two-graphs, association schemes, p-ranks of configurations and similar topics ...
Brouwer, A.E., Haemers, W.H.
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This book gives an elementary treatment of the basic material about graph spectra, both for ordinary, and Laplace and Seidel spectra. The text progresses systematically, by covering standard topics before presenting some new material on trees, strongly regular graphs, two-graphs, association schemes, p-ranks of configurations and similar topics ...
Brouwer, A.E., Haemers, W.H.
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Australas. J Comb., 2002 The author gives examples showing that no two of the three usual graph spectra (adjacency, Laplacian, Seidel) suffice to compute the third one in case of non-regular graphs. Further, examples are given to show that these three spectra taken together do not suffice to compute exactly the max-cut and the bisection of a graph.
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Infrared and Raman Spectra of Inorganic and Coordination Compounds
, 1978K. Nakamoto
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