The Experts below are selected from a list of 120 Experts worldwide ranked by ideXlab platform

Michael Young - One of the best experts on this subject based on the ideXlab platform.

  • path cover number maximum nullity and zero forcing number of oriented graphs and other simple digraphs
    Involve A Journal of Mathematics, 2015
    Co-Authors: Adam H Berliner, Cora Brown, Joshua Carlson, Leslie Hogben, Jason Hu, Katrina Jacobs, Kathryn Manternach, Travis Peters, Nathan Warnberg, Michael Young
    Abstract:

    ∗Department of Mathematics, Statistics, and Computer Science, St. Olaf College, Northfield, MN 55057 (berliner@stolaf.edu), (coxn@stolaf.edu). Research of N. Cox supported by NSF DMS 0750986 †Department of Mathematics, Carleton College, Northfield, MN 55057 (brownc@carleton.edu). Research supported by NSF DMS 0750986. ‡Department of Mathematics, Iowa State University, Ames, IA 50011 (jmsdg7@iastate.edu), (warnberg@iastate.edu), (myoung@iastate.edu). Research of J. Carlson supported by ISU Holl funds. Research of M. Young supported by NSF DMS 0946431. §Department of Mathematics, Iowa State University, Ames, IA 50011, (lhogben@iastate.edu) and American Institute of Mathematics, 360 Portage Ave, Palo Alto, CA 94306 (hogben@aimath.org). ¶Department of Mathematics, University of California, Berkeley, CA 94720-3840 (jason.hu@berkeley.edu). Research supported by NSF DMS 0750986. ‖Department of Mathematics, Pomona College, 610 North College Avenue, Claremont, CA 91711 (klj02011@mymail.pomona.edu). Research supported by NSF DMS 0750986. ∗∗Department of Mathematics and Computer Science, Central College, Pella, IA 50219 (manternachk1@central.edu). Research supported by ISU Holl funds. ††Natural and Mathematical Science Division, Culver-Stockton College, Canton, MO 63435 (tpeters319@gmail.com).

Adam H Berliner - One of the best experts on this subject based on the ideXlab platform.

  • path cover number maximum nullity and zero forcing number of oriented graphs and other simple digraphs
    Involve A Journal of Mathematics, 2015
    Co-Authors: Adam H Berliner, Cora Brown, Joshua Carlson, Leslie Hogben, Jason Hu, Katrina Jacobs, Kathryn Manternach, Travis Peters, Nathan Warnberg, Michael Young
    Abstract:

    ∗Department of Mathematics, Statistics, and Computer Science, St. Olaf College, Northfield, MN 55057 (berliner@stolaf.edu), (coxn@stolaf.edu). Research of N. Cox supported by NSF DMS 0750986 †Department of Mathematics, Carleton College, Northfield, MN 55057 (brownc@carleton.edu). Research supported by NSF DMS 0750986. ‡Department of Mathematics, Iowa State University, Ames, IA 50011 (jmsdg7@iastate.edu), (warnberg@iastate.edu), (myoung@iastate.edu). Research of J. Carlson supported by ISU Holl funds. Research of M. Young supported by NSF DMS 0946431. §Department of Mathematics, Iowa State University, Ames, IA 50011, (lhogben@iastate.edu) and American Institute of Mathematics, 360 Portage Ave, Palo Alto, CA 94306 (hogben@aimath.org). ¶Department of Mathematics, University of California, Berkeley, CA 94720-3840 (jason.hu@berkeley.edu). Research supported by NSF DMS 0750986. ‖Department of Mathematics, Pomona College, 610 North College Avenue, Claremont, CA 91711 (klj02011@mymail.pomona.edu). Research supported by NSF DMS 0750986. ∗∗Department of Mathematics and Computer Science, Central College, Pella, IA 50219 (manternachk1@central.edu). Research supported by ISU Holl funds. ††Natural and Mathematical Science Division, Culver-Stockton College, Canton, MO 63435 (tpeters319@gmail.com).

Zhang Zengxiang - One of the best experts on this subject based on the ideXlab platform.

  • Study on Research Progress of the Mechanism of Urban Sprawl and Spatial Morphology Evolution
    Journal of Chongqing Jiaotong University, 2020
    Co-Authors: Zhang Zengxiang
    Abstract:

    The mechanism of urban sprawl and spatial morphology evolution are analyzed on the base of urban sprawl and urban evolution manner,and a comprehensive literature review on the progress in the dynamics of the urban sprawl and spatial morphologic is presented.Based on the difference in the theory and aspects the scholars thinking about,all the existing urban sprawl and spatial morphologic methods can be roughly classified into five broad categories:(1)urban economy school;(2)human ecology school;(3)Mathematical Science school;(4)urban geography school;and(5)landscape ecology school.Each method has its advantages and disadvantages,and can be applied alone or integrated according to the geographical features of the study object.

M Sivasubramanian - One of the best experts on this subject based on the ideXlab platform.

  • on the new branch of Mathematical Science part 2
    Journal of Mathematics and Statistics, 2008
    Co-Authors: M Sivasubramanian, L Senthilkumar, Raghul K Kumar, S Kalimuthu
    Abstract:

    The fifth Euclidean postulate problem in geometry is 2300 years old. This postulate is also known as Euclid’s parallel postulate. The great mathematicians tried their best to deduce the fifth postulate from the other four postulates. But unfortunately nobody could succeed in this geometrical battle. The studies devoted to this problem led to the origin of two non-Euclidean geometries. The authors resurveyed and established and gave a proof for this problem.

  • on the new branch of Mathematical Science
    2008
    Co-Authors: M Sivasubramanian
    Abstract:

    The origin of geometry dates back 30000(Thirty thousand years) B.C (3) . Euclid of Alexandria (2300 B.C.) complied the Elements which is the first scientific text book. Euclid assumed five postulates. There is no proof for the fifth postulate. Almost all the celebrated mathematicians tried their best to deduce this from the first four postulates. But unfortunately, nobody was successful. Saccheri and Lambert worked on this problem for more than 50 years. The authors start where Saccheri and Lambert failed to obtain the following result/theorem. In a Lambert quadrilateral the fourth angel is the right angle or the lateral sides of a Lambert quadrilateral are equal. This proposition was proved by proof by contradiction.

Leslie Hogben - One of the best experts on this subject based on the ideXlab platform.

  • path cover number maximum nullity and zero forcing number of oriented graphs and other simple digraphs
    Involve A Journal of Mathematics, 2015
    Co-Authors: Adam H Berliner, Cora Brown, Joshua Carlson, Leslie Hogben, Jason Hu, Katrina Jacobs, Kathryn Manternach, Travis Peters, Nathan Warnberg, Michael Young
    Abstract:

    ∗Department of Mathematics, Statistics, and Computer Science, St. Olaf College, Northfield, MN 55057 (berliner@stolaf.edu), (coxn@stolaf.edu). Research of N. Cox supported by NSF DMS 0750986 †Department of Mathematics, Carleton College, Northfield, MN 55057 (brownc@carleton.edu). Research supported by NSF DMS 0750986. ‡Department of Mathematics, Iowa State University, Ames, IA 50011 (jmsdg7@iastate.edu), (warnberg@iastate.edu), (myoung@iastate.edu). Research of J. Carlson supported by ISU Holl funds. Research of M. Young supported by NSF DMS 0946431. §Department of Mathematics, Iowa State University, Ames, IA 50011, (lhogben@iastate.edu) and American Institute of Mathematics, 360 Portage Ave, Palo Alto, CA 94306 (hogben@aimath.org). ¶Department of Mathematics, University of California, Berkeley, CA 94720-3840 (jason.hu@berkeley.edu). Research supported by NSF DMS 0750986. ‖Department of Mathematics, Pomona College, 610 North College Avenue, Claremont, CA 91711 (klj02011@mymail.pomona.edu). Research supported by NSF DMS 0750986. ∗∗Department of Mathematics and Computer Science, Central College, Pella, IA 50219 (manternachk1@central.edu). Research supported by ISU Holl funds. ††Natural and Mathematical Science Division, Culver-Stockton College, Canton, MO 63435 (tpeters319@gmail.com).