101. Unsolved Problems Unsolved problems. 1. Can someone solve this integral equation? Find a nonnegative function g defined on 0,1 and a constant a satisfying. for x 0, with further conditions http://www.maths.usyd.edu.au/u/richardc/unsolved.html

Unsolved problems 1. Can someone solve this integral equation? Find a non-negative function g defined on [0,1] and a constant a satisfying Motivation for the equation, together with a series-solution and plot, is given in Section 5 of Cowan, R. and Chen, F. K. C. Four interesting problems concerning Markovian shape sequences. Adv. Appl. Prob. Download post-script file. The equivalent differential equation is also given in this paper. An analytic solution would be desirable. Least dense "full" packings. Consider an infinite ensemble of equal-sized disks with diameter 1, packed together in the plane. A requirement of the packing is that each disk touches at least 4 other disks. In addition, each disk's circumference must be "full" in the sense that the angle at the disk's centre subtended by the centres of any two adjacent neighbours is less than 2 p /3. Thus there is no room on the circumference for another disk. In the paper Cowan, R. Constraints on the random packing of disks. J. Appl. Prob.

102. Vipul Naik's Home Page: Unsolved Problems Hi! I list below some problems for which solutions are not know to my knowledge. I plan to put up separate files describing where I stand with respect to the problems. http://www.cmi.ac.in/~vipul/unsolvedproblems/

103. Unsolved Problems In Playing-Card Research Unsolved Problems in PlayingCard Research Background. In the January/February 1999 issue of The Playing-Card (Vol XXVII No 4), IPCS president Robert Kissel invited members to http://www.i-p-c-s.org/problis1.html

Home Publications Calendar History of Cards ... Links Unsolved Problems in Playing-Card Research Background In the January/February 1999 issue of The Playing-Card (Vol XXVII No 4), IPCS president Robert Kissel invited members to contribute to a list of unsolved problems in playing-card research. This would be the playing-card equivalent of the famous list of unsolved mathematical problems published by David Hilbert 100 years ago. Submissions by Sir Michael Dummett, February 10th, 1999 Unsolved Problems concerning Tarot and Italian Cards Can the type of cards, both regular and Tarots (not standardised nearly enough to form a standard pattern), called by Sylvia Mann 'archaic' be definitely assigned to Ferrara, as conjectured by Dummett, to Venice, as supposed by almost everyone else, or to any other city? Can definite evidence be found to assign the standard pattern exemplified by early Trappola cards from north of the Alps to Venice, or perhaps to Trent or some other city? Two questions relate to Piedmont. The first is this: Various features of Tarot games played in Piedmont indicate a connection with Bolgna: the treatment of the four ' Papi 'Empress, Popess, Emperor and Popeas of equal rank, any one of them played later to a trick beating one played earlier;

104. Unsolved Problems - Education Resource - StudySphere Education Portal, Educational Resource for language school, study abroad, education online, education, school, high school, career education, business school, driver education http://www.studysphere.com/education/Advanced-Math-Unsolved-Problems-785.html

105. Download GarbageCan - The Center For Connected Learning And File Format Unrecognized View as HTML http://ccl.northwestern.edu/netlogo/community/GarbageCan.nlogo

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106. Unsolved Problems Unsolved Problems Algebraic GeometryOpen Problems C. Ciliberto SpringerVerlag, Berlin 1983 Paperback. 411 pages. ISBN 0-387-12320-2 LCCN 83-012390 http://www.mathpropress.com/mathBooks/UnsolvedProblems.html

Unsolved Problems Algebraic GeometryOpen Problems C. Ciliberto Springer-Verlag , Berlin: 1983 Paperback. 411 pages. ISBN 0-387-12320-2 LCCN 83-012390 Continua: With the Houston Problem Book Volume 170 of the series Lecture Notes in Pure and Applied Mathematics Howard Cook, W. T. Ingram, and K. T. Kuperberg Marcel Dekker, City of publication unknown: 1995 Paperback. 402 pages. ISBN 0-8247-9650-0 Definitions, Solved and Unsolved Problems, Conjectures, and Theorems in Number Theory and Geometry Florentin Smarandache Xiquan Publishing House, City of publication unknown: 2000 Paperback. 84 pages. ISBN 1-879585-74-X Erdos on Graphs: His legacy of unsolved problems Fan R. K. Chung and Ronald L. Graham A K Peters, Wellesley, MA: 1998 Hardcover. 142 pages. ISBN 1-56881-079-2 LCCN 97-046327 Mathématiques de demain, problèmes non résolus Charles Stanley Ogilvy Dunod, Paris: 1966 Unknown binding. 152 pages. French. LCCN 72-381436 Old and New Unsolved Problems in Plane Geometry and Number Theory Volume 11 of the series Dolciani mathematical expositions Victor Klee and Stan Wagon Mathematical Association of America , Washington, DC: 1991 Hardcover. 333 pages. ISBN 0-88385-315-9 LCCN 91-061591

107. Download GarbageCan_docker - The Center For Connected Learning And File Format Unrecognized View as HTML http://ccl.northwestern.edu/netlogo/community/GarbageCan_docker.nlogo

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108. Unsolved Problems Biology | TutorVista Unsolved problem 1 Convert the temperature from degrees Celsius to degrees Fahrenheit, using the formula below 85C (Hint F = (9/5 C) + 32) Unsolved problem 2 6 http://www.tutorvista.com/topic/unsolved-problems-biology

109. Full Text Online Of Blondel, V.D. And Megretski, A., Eds.: Unsolved Problems In Table of Contents for Unsolved Problems in Mathematical Systems and Control Theory by Blondel, V.D. and Megretski, A., eds., published by Princeton University Press http://press.princeton.edu/math/blondel/

SEARCH: Keywords Author Title More Options Power Search Search Hints [an error occurred while processing this directive] Unsolved Problems in Mathematical Systems and Control Theory Edited by Vincent D. Blondel and Alexandre Megretski Book Description Endorsements Table of Contents To Order ... Class Use and other Permissions . For more information, send e-mail to permissions@pupress.princeton.edu Full text online (PDF format): Entire book as one file (1.4 MB) (Separate files for each section follow below) Frontmatter Preface xiii Associate Editors xv Website xvii PART 1. LINEAR SYSTEMS Problem 1.1. Stability and composition of transfer functions Problem 1.2. The realization problem for Herglotz-Nevanlinna functions Seppo Hassi, Henk de Snoo, Eduard Tsekanovskii Problem 1.3. Does any analytic contractive operator function on the polydisk have a dissipative scattering nD realization? Dmitry S. Kalyuzhniy-Verbovetzky Problem 1.4. Partial disturbance decoupling with stability Problem 1.5. Is Monopoli's model reference adaptive controller correct? A. S. Morse

110. Slide 1 Translate this page File Format Microsoft Powerpoint - View as HTML http://meital.iucc.ac.il/conf2009/program/batya_amit_revised_Nov_09.ppsx dir=rtl

111. Unsolved Problems Bibliography Up R Coronae Borealis Stars Previous Other HydrogenDeficient Stars Unsolved Problems. Since the discovery of RCrB itself, the mechanism that produces fadings http://star.arm.ac.uk/~csj/rcrb_rev/node15.html

Next: Bibliography Up: R Coronae Borealis Stars Previous: Other Hydrogen-Deficient Stars Unsolved Problems Since the discovery of RCrB itself, the mechanism that produces fadings has been elusive. Primary data connecting pulsation phase and the trigger for fadings exists for only two RCBs (V854Cen and RYSgr), and protracted photometry of several RCBs will be necessary to establish any connection firmly. A second difficulty is encountered by the physical conditions necessary for dust to condense above the surface of the star. The frequency and duration of fading events implies a geometry in which the dust clouds form within two stellar radii (2 R ). Under normal conditions, the local temperature would be too high for dust to condense at this distance, and a condensation distance of 20 R would be expected. Recent models treat the chemistry, energy balance and dust nucleation in pulsating star atmospheres in considerable detail. They show that excess cooling can occur during adiabatic expansion after the passage of a shock wave, reducing the local temperature to about 1500K within 1.5-3 R . It remains to be shown that pulsations in all RCB stars provide the necessary conditions for dust nucleation to occur at this distance. The RCB carbon abundance remains an enigma. If it is

112. Unsolved Problems In Egyptology | Home ARTIST'S STATEMENT Welcome to Unsolved Problems in Egyptology. I won't say these drawings are great, but I think it is great that I did them. David Shamoon http://unsolved-problems-in-egyptology.com/

113. Unsolved Problems Unanswered Questions ~ Things That Keep You Now that I am older and wiser, solutions just seem to pop into my mind whenever I'm faced with a tough situation. Yeah, right! http://www.blessed2bless.us/by-steve/unsolved-problems-&-unanswered-question

114. UNSOLVED PROBLEMS Conclusion Up R CORONAE BOREALIS STARS Previous Bornagain stars UNSOLVED PROBLEMS. Since the discovery of RCrB itself, the mechanism that produces fadings has been elusive. http://star.arm.ac.uk/~csj/research/rcb_review/node20.html

Next: Conclusion Up: R CORONAE BOREALIS STARS Previous: Born-again stars UNSOLVED PROBLEMS Since the discovery of RCrB itself, the mechanism that produces fadings has been elusive. Primary data connecting pulsation phase and the trigger for fadings exists for only two RCBs (V854Cen and RYSgr, [ Lawson et al. 1992 Pugach 1977 ]), and protracted photometry of several RCBs will be necessary to establish any connection firmly. A second difficulty is encountered by the physical conditions necessary for dust to condense above the surface of the star. The frequency and duration of fading events implies a geometry in which the dust clouds form within two stellar radii (2 R Clayton et al. 1992 ]). Under normal conditions, the local temperature would be too high for dust to condense at this distance, and a condensation distance of 20 R would be expected ([ Fadeyev 1986 ]). Recent models treat the chemistry, energy balance and dust nucleation in pulsating star atmospheres in considerable detail ([ Woitke et al. 1996a ], 1996b). They show that excess cooling can occur during adiabatic expansion after the passage of a shock wave, reducing the local temperature to about 1500K within 1.5-3 R . It remains to be shown that pulsations in all RCB stars provide the necessary conditions for dust nucleation to occur at this distance. The RCB carbon abundance remains an enigma ([ Asplund et al. 2000

115. Are These The Top 11 Unsolved Problems In Economics? Wikipedia identifies the top 11 unsolved problems in Economics but could some of these ever be answered? http://economics.about.com/od/whatiseconomics/a/unsolved_econ.htm

zWASL=1;zGRH=1 zJs=10 zJs=11 zJs=12 zJs=13 zc(5,'jsc',zJs,9999999,'') zDO=0 Home Education Economics Economics Search Economics Basics Economic Indicators Economic Issues ... Share w(x2+zWl+'?p=1" zT="18/1[N" rel="nofollow">Print') Discuss in our Forum Apply now to guide this site Are These The Top 11 Unsolved Problems in Economics? One List of Unsolved Economics Problems From Mike Moffatt , former About.com Guide See More About: economics questions academic economics unsolved problems zSB(3,3) Through Craig Newmark I stumbled upon a list on Wikipedia of Unsolved Problems in Ecomomics . Like a lot of the material on Wikipedia, there are no citations or indication of where the material comes from, who the authors are and what qualifications do they have. That being said, I do find the idea of such a list fascinating and I applaud these anonymous authors for giving it their best effort. I would love to see a survey of, say, the AEA asking members for their lists of top unsolved economics questions. To say a question is "unsolved" implies that the question potentially has a solution, in the same way has a solution. The difficulty is, most of the questions on this list are so vague that they cannot possibly have a solution. As such, the list, in my opinion, is a poor one.

116. Unsolved Science Problems - This article is a list of unsolved problems in computer science . There are actually so many unsolved problems in all areas of science, that the task of http://kabelki.eu/gn9S3la/

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