Frob enius endomorphisms of linear spaces Alexander E. Guterman My research interests are in ring theory, linear algebra and combinatorics. In particular, I investigate transformations on matrices over different algebraic structures, preserving some matrix properties, sets or invariants. ... I was investigating monotone matrix transformations and developed method of matrix deformations and chain method in order to classify monotone linear and additive transformations on matrices. ...

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• http://www.mccme.ru/lifr/greb/school_rhodes.pdf
• Conference "Combinatorial Methods in Physics and Knot Theory" (February 2005)
• Labo J.-V.Poncelet: noeuds et tresses

History of Seattle / New Year Predictions and Thoughts . ... Over six thousand people were unemployed, nearly half were service men returning from the First World War. ... One of the most exciting historical events in Seattle from 1930-1940 . ... This 3,387 ft. long bridge was the largest floating structure ever built by people. 40's The major breakthrough in Seattle's history between 1940-1950 was the Boeing Company. ... In the year 2000, I don't think too much will happen. ...

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... Home . ... Events . Gallery . ... My wife I were headed home just after sunset when this scene grabbed our attention. I snapped a couple of shots but the exposures were blurred. I rushed home and returned with a tripod a few minutes later and snapped a few shots. ... Submitted by Bruce Berger on 02/18/2007 18:54:00 . Picture Galleries . Astronomy Galleries . Club Events . Other Galleries . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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. The Soviet autometic station "Luna-16". In September 1970 the Soviet autometic station "Luna-16" carried out a soft landing in the Abundance Sea, where the special loading unit took the soil species 105 g in weight and put into the returned apparatus, which carried it to the Earth. Back .

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• galleae
• moon3photoe

News archieve . ... The YSC congratulates you with New Year! ... The representatives of the YSC made a presentation there and video presentation as a workshop report as well. ... We suggest you taking part in our annual summer students workshop "Space development: theory and practice." ... 26 July, 2006, Wednesday . ... The 9th International Students Workshop "Space development: theory and practice" was carryed out by Youth Space Center (BMSTU) with the support of the Russian Federal Space Agency. ...

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... Measurement of the MASS detectors parameters with mass program January 24, 2015 [112707] . MASS/DIMM electronics. ... Turbina-core(D): Dimm User Guide. ... N.Shatsky, V.Kornilov, The revision of the MASS/DIMM star catalogue. ... О.Возякова, В.Корнилов, Н.Шатский, Новое программное обеспечение прибора MASS/DIMM. ... V.Kornilov, N.Shatsky, S.Potanin, O.Voziakova, B.Safonov Preliminary results of astroclimate parameters measurements at the Sternberg 2.5m telescope installation site. ...

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About Zones of Resonant Returns of Asteroid Apophis . ... Asteroid Apophis is one of extremely dangerous NEOs. ... Using analytical and numerical tools, we investigate the loss of precision after the Earth approach in 2029 and the possible approach in 2036. ... Possible trajectories of collisions with the Earth have been found analytically and numerically in this chaotic region. To construct these trajectories we used quasi-random intermediate motions, made up from resonant collision orbits. ...

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• (Untitled)
• Keywords_164
• NAA 2011-2012 (preface)

... Yerga Expedition . ... Novaya Yerga Expedition . ... I n 1662 a meteorite shower fell near the village of Novaya Yerga. ... In 2002, the Meteoritics Laboratory of the Vernadsky Institute of Geochemistry And Analytical Chemistry of the Russian Academy of Sciences (GEOKHI) organized an expedition to search for the location and any traces of the Novaya Yerga meteorite shower. ... After visiting the town of Kirillov, the expedition returned to Novaya Yerga, i.e. to near the village of Nekrasovo. ...

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• ЛАБОРАТОРИЯ МЕТЕОРИТИКИ ГЕОХИ РАН

... Heracles Triplane and Aerospace Systems . The key characteristics of two-stage aerospace systems are determined according to speed and carrying capacity of the aircraft-carrier used . ... So the SPIRAL system hypersonic carrier was expected to launch the second stage by weight 63 tons at a speed corresponding to 6M; whereas launching weight of the MAKS system orbital stage with the use of the An-225 MRIYA heavy subsonic aircraft reaches 275 tons, and the HERACLES aircraft - 450 tons. ...

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• Buran Orbiter
• Bor Vehicles

. General Information . Media Files . Participants . Timetable . Local Information . Photos . Back to the album list . Previous . Next Click the image to view it in fullsize. Previous . Next . From Turkic "nart sane" is translated as "bogatyr's water". Old Caucasian legend says that a long time ago there was a pillar by the spring with words on it: "Stranger, stand and bow. The water gives a strength to young, returns health to elder and beauty and love to women." .

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... The words are numbered according to the reference mentioned above. ... 59 WORD wSecond ; // 0 .. 59 satellite tracking start time (GMT) float fStep ; // reserved WORD wMass ; // reserved BYTE reserved [12] ; // reserved WORD wExtraBytes ; // reserved } TRAJECTORYHEADER ; NOTE: the satellite tracking start time is a hardware operating start time to follow satellite. typedef struct { // ephemeris at satellite tracking start time double time ; // Epoch time (yyddd.ddddddddd)...

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• References (SMIS IKI RAN)

... Next Routine] [List of Routines] NAME: ADD_HEADER PURPOSE: addition information from FITS-headers MPFS-frames DESCRIPTION: The function computes the total exposure, mean value zenit distance and modified FITS header CALLING SEQUENCE: Result =ADD_HEADER( headers ) CATEGORY: reduction MPFS-data INPUTS: Headers = String array FITS-headers from the MPFS data OUTPUTS: Header = String array containing the header from the FITS file. ... OPTIONAL INPUT KEYWORD PARAMETERS: BEFORE = Keyword string name. ...

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. F IGURE . 6. Reconstruction of the distribution of Z for four groups of stars at the Solar Galactocentric distance within a column with a 80 pc 2 square base. See the caption for Fig.2 for a description of the plots for the four groups (a-d). The solid curve and Z 0 values have the same meaning as in Fig.5c . discussion in the text | previous figure .

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• Vladimir Marsakov Abstracts
• Mid Scales Role
• Scientific Directions Achievements

... FTP access the basic models is here . ... Below, we put short descriptions of the used SED models for the photometric redshifts providing by the current server . ... The uniqueness of this model consists in expanding to the near IR (NIR) of Rocca-Volmerange and Guiderdoni's (1988) atlas of synthetic spectra with a revised stellar library, which includes parameters of cool stars. ... Homepage of the GISSEL model). ... Another model used earlier is the model of synthetic spectra of Poggianti (1997). ...

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• Description of system SEDs

... VaST is a software tool for finding variable objects on a series of astronomical images. ... VaST performs object detection and aperture photometry using SExtractor on each image, cross-matches lists of detected stars, performs magnitude calibration with respect to the first (reference) image and constructs a lightcurve for each object. ... VaST FITS image viewer ./pgfv . ... Part I" PZP, vol. ... K. V. Sokolovsky, S. A. Korotkiy; "New Variable Stars Discovered by the NMW Survey" PZP, vol. ...

76. MAO NASU :: Topic: The "Flame" description (1/1)

77. http://www.winer.org/Downloads/Winer_IRS_Prelim.pdf

78. Электронная библиотека астронома-любителя. RU.SPACE.NEWS - архив за 05 ноября

79. http://kcor.sai.msu.ru/2010/calc_kcor.pro

80. Scientific.ru Альтернативный форум