86,538 research outputs found
On nonregular ideals and -ideals in
No full textsummary:The spaces in which every prime -ideal of is either minimal or maximal are characterized. By this characterization, it turns out that for a large class of topological spaces , such as metric spaces, basically disconnected spaces and one-point compactifications of discrete spaces, every prime -ideal in is either minimal or maximal. We will also answer the following questions: When is every nonregular prime ideal in a -ideal? When is every nonregular (prime) -ideal in a -ideal? For instance, we show that every nonregular prime ideal of is a -ideal if and only if is a -space (a space in which the boundary of any zeroset is contained in a zeroset with empty interior)
Variations on the Author
No full text“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
[Newspaper Clipping: Author Claims Evidence of Second JFK Assassin #1]
No full textNewspaper article titled "Author Claims Evidence of Second JFK Assassin." The article states that author Richard J. Whalen concluded "that there is circumstantial evidence to support the theory of a second assassin in the shooting of President John F. Kennedy.
Relative z-ideals in C(X)
No full textAbstractFor every two ideals I⊆J in C(X), we call I a zJ-ideal if Z(f)⊆Z(g), f∈I and g∈J imply that g∈I. An ideal I is called a relative z-ideal, briefly a rez-ideal, if there exists an ideal J such that I⊊J and I is a zJ-ideal. We have shown that for any ideal J in C(X), the sum of every two zJ-ideals is a zJ-ideal if and only if X is an F-space. It is also shown that every principal ideal in C(X) is a rez-ideal if and only if X is an almost P-space and the spaces X for which the sum of every two rez-ideals is a rez-ideal are characterized. Finally for a given ideal I in C(X), the existence of greatest ideal J such that I to be a zJ-ideal and also for given two ideals I⊆J in C(X), a greatest zJ-ideal contained in I and the smallest zJ-ideal containing I are investigated
Also By The Same Author: AKTiveAuthor, a Citation Graph Approach to Name Disambiguation
No full textThe desire for definitive data and the semantic web drive for inference over heterogeneous data sources requires co-reference resolution to be performed on those data. In particular, name disambiguation is required to allow accurate publication lists, citation counts and impact measures to be determined. This paper describes a graph-based approach to author disambiguation on large-scale citation networks. Using self-citation, co-authorship and document source analyses, AKTiveAuthor clusters papers, achieving precision of 0.997 and recall of 0.818 over a test group of eight surname clusters
John F. Kennedy telegram to Roosevelt
No full textJersey Homesteads (later the Borough of Roosevelt) was established in the 1930s as an agro-industrial cooperative community. It was established specifically for urban Jewish garment workers, many of whom had emigrated from Europe. President John F. Kennedy sent a telegram to the citizens of Roosevelt, New Jersey, apologizing for not being able to attend the memorial dedication in honor of former President Franklin Delano Roosevelt. (Jersey Homesteads became Roosevelt in 1945 in honor of the president.) President Kennedy expressed his gratitude to the people of Roosevelt for constructing the memorial, and commented that it will serve as a constant reminder of Roosevelt's good works
Logarithmic variance profiles and the corresponding f-1 spectra of temperature fluctuations in turbulent Rayleigh-Bénard convection
No full textWe report experimental results for the temperature variance 2(z) and the corresponding frequency spectra P(f) in turbulent Rayleigh-Bénard convection (RBC) in a cylindrical sample of aspect ratioT= D/L = 1:00 (D = 1:12 m is the diameter and L = 1:12 m the height). The measurements were conducted in the Rayleigh-number range 1011 < Ra < 1:35 1014 and Pr ' 0:8. For Ra = 1:35x1014, 2(z) could be described well by a logarithmic dependence on the vertical position z in a range of z 1 < z < z 2 with z 1 ' 70 and z 2 = 0:1L. Here L=(2Nu) is the thickness of a thin thermal sublayer adjacent to the horizontal plate where the heat flux (denoted by the Nusselt number Nu) is carried mostly by thermal diffusion. In the log layer, we found that the temperature spectra had a significant frequency range over which P(f) f with close to 1. As Ra decreased, increased so that the log layer became thinner. At Ra = 2:05 1011, z 2 < z 1 and therefore there was no range for a log layer. Correspondingly, the temperature spectrum near the horizontal plate did not have the f1 scaling form either
Maine author Franklin F. Gould recalls his first glimpse of the outside world
No full textMaine author Franklin F. Gould recalls his first glimpse of the outside world as he relates how, as a young farm boy in the late 1800\u27s, he drove his father\u27s horses on an errand to an icebound river
Mapping the Discipline of the Olympic Games An Author-Cocitation Analysis
No full textThe authors conducted an author cocitation analysis on prominent authors writing about the Olympics during the 1990s. Author cocitation is an established bibliometric technique that can be used to measure the relative similarities of topics written about by the cited authors. This enables a visual representation of the “intellectual space” of the discipline, in this case the Olympics, to be created for the period under review. So core and peripheral research areas are identified, along with their major contributors. The representation appears as a two-dimensional cluster-enhanced map. Subject expertise was then applied to the results to place labels on the generated clusters of authors and their topics
Some classes of topological spaces related to zero-sets
No full text[EN] An almost P-space is a topological space in which every zero-set is regular-closed. We introduce a large class of spaces, C-almost P-space (briefly CAP-space), consisting of those spaces in which the closure of the interior of every zero-set is a zero-set. In this paper we study CAP-spaces. It is proved that if X is a dense and Z#-embedded subspace of a space T, then T is CAP if and only if X is a CAP and CRZ-extended in T (i.e, for each regular-closed zero-set Z in X, clTZ is a zero-set in T). In 6P.5 of [8] it was shown that a closed countable union of zero-sets need not be a zero-set. We call X a CZ-space whenever the closure of any countable union of zero-sets is a zero-set. This class of spaces contains the class of P-spaces, perfectly normal spaces, and is contained in the cozero complemented spaces and CAP-spaces. In this paper we study topological properties of CZ (resp. cozero complemented)-space and other classes of topological spaces near to them. Some algebraic and topological equivalent conditions of CZ (resp. cozero complemented)-space are characterized. Examples are provided to illustrate and delimit our results.Golrizkhatami, F.; Taherifar, A. (2022). Some classes of topological spaces related to zero-sets. Applied General Topology. 23(1):1-16. https://doi.org/10.4995/agt.2022.15668OJS116231F. Azarpanah, On almost P-spaces, Far East J. Math. Sci. 1 (2000), 121-132.F. Azarpanah, M. Ghirati and A. Taherifar, Closed ideals in C(X) with different reperesentations, Houston Journal of Mathematics 44, no. 1 (2018), 363-383.F. Azarpanah, A. A. Hesari, A. R. Salehi and A. Taherifar, A Lindelöfication, Topology Appl. 245 (2018), l46-61.https://doi.org/10.1016/j.topol.2018.06.009F. Azarpanah and M. Karavan, On nonregular ideals and -ideals in C(X), Czechoslovak Math. J. 55 (2005), 397-407.https://doi.org/10.1007/s10587-005-0030-0F. Azarpanah, O. A. S. Karamzadeh and A. Rezai Aliabad, On z-ideals in C(X), Fund. Math. 160 (1999), 15-25.https://doi.org/10.4064/fm_1999_160_1_1_15_25R. L. Blair and A. W. Hager, Extension of zero-sets and real-valued functions, Math. Z. 136 (1974), 41-52.https://doi.org/10.1007/BF01189255F. Dashiel, A. Hager and M. Henriksen, Order-Cauchy completions and vector lattices of continuous functions, Canad. J. Math. XXXII (1980), 657-685.https://doi.org/10.4153/CJM-1980-052-0L. Gillman and M. Jerison, Rings of Continuous Functions, Springer, 1976.M. Henriksen and M. Jerison, The space of minimal prime ideals of a commutative ring, Trans. Amer. Math. Soc. 115 (1965), 110-130.https://doi.org/10.1090/S0002-9947-1965-0194880-9M. Henriksen and G. Woods, Cozero complemented spaces; when the space of minimal prime ideals of a C(X) is compact, Topology Appl. 141 (2004), 147-170.https://doi.org/10.1016/j.topol.2003.12.004R. Levy, Almost P-spaces, Canad. J. Math. 2 (1977), 284-288.https://doi.org/10.4153/CJM-1977-030-7A. Taherifar, Some new classes of topological spaces and annihilator ideals, Topology Appl. 165 (2014), 84-97.https://doi.org/10.1016/j.topol.2014.01.017A. I. Veksler, P'-points, P'-sets, P'-spaces. A new class of order-continuous measures and functionals, Sov. Math. Dokl. 14 (1973), 1445-1450
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