YAGASAKI Kazuyuki

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Name
YAGASAKI Kazuyuki
Affiliation
Kyoto University
ORCID ID
0000-0001-9901-248X

Research Areas

 
 

Academic & Professional Experience

 
Apr 2014
   
 
Professor, Graduate School of Infirmatics, Kyoto University 
 
Oct 2012
 - 
Mar 2014
Professor, Graduate School of Science, Hiroshima University
 
Apr 2009
 - 
Sep 2012
Professor, Niigata University
 
Aug 2006
 - 
Mar 2009
Professor, Gifu University
 
Jul 1994
 - 
Jul 2006
Associate Professor, Gifu University
 
Apr 1994
 - 
Jun 1994
Associate Professor, Tamagawa University
 
Apr 1988
 - 
Mar 1994
Lecturer, Tamagawa University
 
Apr 1987
 - 
Mar 1988
Research Associate, Tamagawa University
 

Education

 
Apr 1983
 - 
Mar 1987
Graduate School of Science and Engineering, Tokyo Institute of Technology
 
Apr 1979
 - 
Mar 1982
Faculty of Engineering, Tokyo Institute of Technology
 

Published Papers

 
Kazuyuki Yagasaki, Shotaro Yamazoe
SIAM Journal on Applied Dynamical Systems   18(1) 393-417   Jan 2019   [Refereed]
Kazuyuki Yagasaki
Regular and Chaotic Dynamics   23(4) 438-457   Jul 2018   [Refereed]
YAGASAKI Kazuyuki
Nonlinearity   31(7) 3057-3085   Jul 2018   [Refereed]
Nonintegrability of parametrically forced nonlinear oscillators
MOTONAGA Shoya, YAGASAKI Kazuyuki
Regular and Chaotic Dynamics   23(3) 291-303   May 2018   [Refereed]
YAGASAKI Kazuyuki
Nonlinearity   31(2) 341-350   Feb 2018   [Refereed]
YAGASAKI Kazuyuki, YAMANAKA Shogo
Journal of Differential Equations   263(2) 1009-1027   Jul 2017   [Refereed]
Rough external feedback control of microcantilevers in atomic force microscopy
YAGASAKI Kazuyuki
Nonlinear Dynamics   87(4) 2335-2343   Mar 2017   [Refereed]
VAN DER HEIJDEN G. H. M., YAGASAKI Kazuyuki
Journal of Applied Mathematics and Physics (ZAMP)   65(2) 221-240   Apr 2014   [Refereed]
YAGASAKI Kazuyuki
Journal of Differential Equations   255(7) 1988-2001   Oct 2013   [Refereed]
YAGASAKI Kazuyuki
Communications in Nonlinear Science and Numerical Simulation   18(10) 2926-2943   Oct 2013   [Refereed]
YAGASAKI KAZUYUKI
Nonlinearity   26(5) 1345-1360   May 2013   [Refereed]
Application of the subharmonic Melnikov method to piecewise-smooth systems
YAGASAKI Kazuyuki
Discrete and Continuous Dynamical Systems A   33(5) 2189-2209   May 2013   [Refereed]
MIYAMOTO Yasuhito, YAGASAKI Kazuyuki
Journal of Differential Equations   254(2) 342-367   Jan 2013   [Refereed]
David Blázquez-Sanz, Kazuyuki Yagasaki
Journal of Differential Equations   253(11) 2916-2950   Dec 2012   [Refereed]
Galoisian approach for a Sturm-Liouville problem on the infinite interval
David Blázquez-Sanz, Kazuyuki Yagasaki
Methods and Applications of Analysis   19(3) 267-288   Sep 2012   [Refereed]
MALOMED BORIS A., WAGENKNECHT THOMAS, YAGASAKI KAZUYUKI
Physica D Nonlinear Phenom   241(11) 1043-1058   2012   [Refereed]
VAN DER HEIJDEN G. H. M., YAGASAKI Kazuyuki
Journal of Physics A   44(49) 495101   Dec 2011   [Refereed]
SHIBAYAMA MITSURU, YAGASAKI KAZUYUKI
Celest Mech Dyn Astron   110(1) 53-70   May 2011   [Refereed]
YAGASAKI Kazuyuki
Discrete and Continuous Dynamical Systems A   29(1) 387-402   Jan 2011   [Refereed]
YAGASAKI KAZUYUKI
Phys Lett A   375(1) 23-28   Nov 2010   [Refereed]
SHIBAYAMA Mitsuru, YAGASAKI Kazuyuki
Nonlinearity   22(10) 2377-2403   Oct 2009   [Refereed]
YAGASAKI Kazuyuki
Dynamical Systems   23(3) 309-331   Sep 2008   [Refereed]
Takashi Sakajo, Kazuyuki Yagasaki
Physica D   237(14-17) 2078-2083   Aug 2008   [Refereed]
Takashi Sakajo, Kazuyuki Yagasaki
J. Nonlinear Science   18(5) 485-525   Jun 2008   [Refereed]
YAGASAKI Kazuyuki
International Journal of Non-Linear Mechanics   42(4) 658-672   May 2007   [Refereed]
Yagasaki, K., Merhasin, I.M., Malomed, B.A., Wagenknecht, T., Champneys, A.R.
Europhysics Letters   74(6) 1006-1012   Jun 2006   [Refereed]
YAGASAKI Kazuyuki, WAGENKNECHT Thomas
Physica D   214(2) 169-181   Feb 2006   [Refereed]
YAGASAKI Kazuyuki
Nonlinearity   18(6) 2591-2613   Nov 2005   [Refereed]
YAGASAKI Kazuyuki
Nonlinearity   18(3) 1331-1350   May 2005   [Refereed]
Kazuyuki Yagasaki,Masatoshi Kouyama
I. J. Bifurcation and Chaos   15(2) 659-665   Feb 2005   [Refereed]
YAGASAKI Kazuyuki
Physical Review B   70(24) 245419   Dec 2004   [Refereed]
Yagasaki K, Tamagawa H
Physical review E   70 052801   Nov 2004   [Refereed]
YAGASAKI Kazuyuki, TAMAGAWA Hirohisa
Physical Review E   70(5) 052801   Nov 2004   [Refereed]
YAGASAKI Kazuyuki
Physica D   197(3-4) 313-331   Oct 2004   [Refereed]
YAGASAKI Kazuyuki
Celestial Mechanics and Dynamical Astronomy   90(3-4) 197-212   Sep 2004   [Refereed]
Tamagawa H, Nogata F, Yagasaki K
Journal of colloid and interface science   275(1) 107-112   Jul 2004   [Refereed]
YAGASAKI Kazuyuki
Journal of Applied Mechanics, Transactions ASME   70(5) 732-738   Sep 2003   [Refereed]
Degenerate resonances in forced oscillators
YAGASAKI Kazuyuki
Discrete and Continuous Dynamical Systems B   3(3) 423-438   Aug 2003   [Refereed]
Tamagawa, H. , Nogata, F., Watanabe, T., Abe, A., Yagasaki, K., Jin, J.-Y.
Journal of Materials Science   38(5) 1039-1044   May 2003   [Refereed]
Tamagawa, H., Yagasaki, K., Nogata, F.
Journal of Applied Physics   92(12) 7614-7618   Dec 2002   [Refereed]
YAGASAKI Kazuyuki
Journal of Differential Equations   185(1) 1-24   Oct 2002   [Refereed]
YAGASAKI Kazuyuki
Physics Letters A   301(1-2) 45-52   Aug 2002   [Refereed]
YAGASAKI Kazuyuki
Nonlinear Dynamics   28(3-4) 285-307   May 2002   [Refereed]
Yagasaki K, Kumagai M
Physical review. E, Statistical, nonlinear, and soft matter physics   65 026204   Feb 2002   [Refereed]
YAGASAKI Kazuyuki, TOCHIO Yoshiyuki
International Journal of Bifurcation and Chaos   11(12) 3125-3132   Dec 2001   [Refereed]
Horseshoes in two-degree-of-freedom Hamiltonian systems with saddle-centers
YAGASAKI Kazuyuki
Archive for Rational Mechanics and Analysis   154(4) 275-296   Oct 2000   [Refereed]
YAGASAKI Kazuyuki
Nonlinear Dynamics   20(4) 319-359   Dec 1999   [Refereed]
Codimension-two bifurcations in a pendulum with feedback control
YAGASAKI Kazuyuki
International Journal of Non-Linear Mechanics   34(6) 983-1002   Nov 1999   [Refereed]
YAGASAKI Kazuyuki
JSME International Journal C   41(3) 545-554   Sep 1999   [Refereed]
YAGASAKI Kazuyuki
Nonlinearity   12(4) 799-822   Jul 1999   [Refereed]
Higher-order averaging for periodically forced, weakly nonlinear systems
YAGASAKI Kazuyuki, ICHIKAWA Tadaoki
International Journal of Bifurcation and Chaos   9(3) 519-531   Mar 1999   [Refereed]
YAGASAKI Kazuyuki
Nonlinear Dynamics   18(2) 129-158   Feb 1999   [Refereed]
Homoclinic tangles, phase locking, and chaos in a two-frequency perturbation of Duffing's equation
YAGASAKI Kazuyuki
Journal of Nonlinear Science   9(1) 131-148   Jan 1999   [Refereed]
Controlling chaos using nonlinear approximations for a pendulum with feedforward and feedback control
YAGASAKI Kazuyuki, YAMASHITA Shintaro
International Journal of Bifurcation and Chaos   9(1) 233-241   Jan 1999   [Refereed]
YAGASAKI Kazuyuki, UOZUMI Tomotsugu
Physics Letters A   247(1-2) 129-139   Oct 1998   [Refereed]
Numerical detection and continuation of homoclinic points and their bifurcations for maps and periodically forced systems
YAGASAKI Kazuyuki
International Journal of Bifurcation and Chaos   8(7) 1617-1627   Jul 1998   [Refereed]
Dynamics of a simple model for a wind-loaded nonlinear structure: Bifurcations of codimension one and two
YAGASAKI Kazuyuki
Journal of Applied Mechanics, Transactions ASME   65(2) 505-512   Jun 1998   [Refereed]
YAGASAKI Kazuyuki
Journal of Sound and Vibration   210(4) 529-553   Mar 1998   [Refereed]
YAGASAKI Kazuyuki, UOZUMI Tomotsugu
Physics Letters A   238(6) 349-357   Feb 1998   [Refereed]
YAGASAKI Kazuyuki, UOZUMI Tomotsugu
International Journal of Bifurcation and Chaos   7(12) 2827-2835   Dec 1997   [Refereed]
YAGASAKI Kazuyuki
SIAM Journal on Applied Mathematics   56(6) 1720-1765   Dec 1996   [Refereed]
A simple feedback control system: bifurcations of periodic orbits and chaos
YAGASAKI Kazuyuki
Nonlinear Dynamics   9(4) 391-417   Apr 1996   [Refereed]
YAGASAKI Kazuyuki
Journal of Sound and Vibration   190(4) 587-609   Mar 1996   [Refereed]
Yagasaki Kazuyuki
Transactions of the Japan Society of Mechanical Engineers. C   61(586) 2240-2246   Jun 1995   [Refereed]
Chaotic dynamics of the Duffing oscillator with parametric and external forcing are studied. The unperturbed system, in which the damping and external forcing terms are removed and the parametric forcing amplitude or frequency is zero, has a hyper...
YAGASAKI Kazuyuki
Journal of Sound and Vibration   183(1) 1-31   May 1995   [Refereed]
Chaos in a pendulum with feedback control
YAGASAKI Kazuyuki
Nonlinear Dynamics   6(2) 125-142   Sep 1994   [Refereed]
Homoclinic motions and chaos in the quasiperiodically forced van der Pol-Duffing oscillator with single well potential
YAGASAKI Kazuyuki
Proceedings of The Royal Society of London A   445(1925) 597-617   Jun 1994   [Refereed]
Chaotic dynamics of a quasi-periodically forced beam
YAGASAKI Kazuyuki
Journal of Applied Mechanics, Transactions ASME   59(1) 161-167   Mar 1992   [Refereed]
YAGASAKI Kazuyuki
Journal of Applied Mechanics, Transactions ASME   58(1) 244-250   Mar 1991   [Refereed]
Yagasaki, Kazuyuki, Sakata, Masaru, Kimura, Koji
Journal of Applied Mechanics, Transactions ASME   57(1) 209-217   Mar 1990   [Refereed]
YAGASAKI Kazuyuki, KIMURA Koji, SAKATA Masaru
Transactions of the Japan Society of Mechanical Engineers. C   53(495) 2183-2190   Nov 1987   [Refereed]
The level crossing problem is discussed for a multi-dimentional nonlinear system subjected to an amplitude modulated nonwhite random excitation. The first passage probability and the probability distribution of the level crossings are approximatel...

Misc

 
Chaos in randomly perturbed dynamical systems
YAGASAKI Kazuyuki
(1942) 98-104   Apr 2015
YAGASAKI Kazuyuki
Dynamics & Design Conference   2010 "239-1"-"239-5"   Sep 2010
We demonstrate the usefulness and validity of the subharmonic Melnikov method for bi- and trilinear oscillators in piecewise-smooth systems. Special attention is paid to degenerate resonance behavior. Analytical results are also illustrated by num...
YAGASAKI Kazuyuki
Dynamics & Design Conference   2010 "252-1"-"252-2"   Sep 2010
We apply the external feedback control technique to microcantilevers in tapping-mode atomic force microscopy. This approach enables us not only to control vibrations of the cantilevers but also to measure the sample surfaces simultaneously. The ef...
YAGASAKI Kazuyuki
Dynamics & Design Conference   2008 "147-1"-"147-4"   Sep 2008
Using a dynamical systems approach and numerically computing the stable manifold of an equilibrium in the corresponding Hamiltonian systems, we propose a numerical technique for obtaining derivatives of stabilizing solutions to Hamilton-Jacobi equ...
YAGASAKI KAZUYUKI
J Syst Des Dyn (Web)   2(3) 652-663 (J-STAGE)   2008
YAGASAKI Kazuyuki, SAKAMOTO Noboru, HIRATA Yoshihiro
IEICE technical report. Nonlinear problems   107(399) 17-21   Dec 2007
We develop a global perturbation technique for obtaining approximate but analytical expressions of stabilizing solutions to Hamilton-Jacobi equations for nonlinear control systems. To this end, we approximately compute the stable manifolds of the ...
YAGASAKI Kazuyuki
Dynamics & Design Conference   2007 "519-1"-"519-4"   Sep 2007
We generalize an idea of the OGY method, which is a well-known, chaos control method, and propose a control method for stabilizing "unstable" trajectories defined on infinite- or finite-time intervals. For this purpose, we use extended concepts of...
HIRATA Yoshihiro, YAGASAKI Kazuyuki, SAKAMOTO Noboru
Dynamics and Design Conference   2007(10) 434-437   Aug 2007
We analytically study stabilizing solutions to Hamilton-Jacobi equations when all directions near equilibria are unstable, that is, the eigenvalues of the Jacobian matrix at the equilibria are all positive. Applying a perturbation approach, we obt...
YAGASAKI Kazuyuki, HIRATA Yoshihiro, SAKAMOTO Noboru
Dynamics and Design Conference   2007(10) 430-433   Aug 2007
We develop a global perturbation technique for obtaining approximate but analytical expressions of stabilizing solutions to Hamilton-Jacobi equations when stable directions near equilibria exist. To this end, we approximately compute the stable ma...
Sakajo Takashi, Yagasaki Kazuyuki
Proceedings, ... meeting of Japan Society of Fluid Mechanics   2007    Aug 2007
We consider the motion of N point vortices in the inviscid and incompressible flow on a sphere with fixed pole vortices. We focus on a steady configuration, called the N-ring, where the N point vortices are equally spaced along a line of latitude....
YAGASAKI Kazuyuki
Dynamics & Design Conference   2006 "101-1"-"101-6"   Aug 2006
Using the averaging method and Melnikov techniques, we study the dynamics of microcantilevers in tapping mode atomic force microscopy. When the distance between the tip and sample surface is relatively large and the van der Waals force has only a ...
YAGASAKI Kazuyuki, TAMAGAWA Hirohisa, NAKAMURA Fumiaki
Dynamics & Design Conference   2006 "625-1"-"625-4"   Aug 2006
We propose an electro-mechanical model for the ionic polymer-metal composites (IPMC) beam. The model is based on considerations from an electrochemical point of view and has nonlinearities in nature.
Nonlinear analyses for the dynamics of microcantilevers in tapping mode atomic force microscopy
YAGASAKI Kazuyuki
Proceedings of the Fifth EUROMECH Nonlinear Dynamics Conference, Eindhoven, The Netherlands   Paper No. 19-307   Aug 2005
Existence of horseshoes in the generalized Henon-Heiles system under degenerate conditions
YAGASAKI Kazuyuki
Proceedings of the Fifth EUROMECH Nonlinear Dynamics Conference, Eindhoven, The Netherlands   Paper No. 12-311   Aug 2005
Chaos and diffusion in four-dimensional,non-conservative,reversible systems with saddle-centers
YAGASAKI Kazuyuki
Proceedings of the Fifth EUROMECH Nonlinear Dynamics Conference, Eindhoven, The Netherlands   Paper No. 13-312   Aug 2005
Detection of homoclinic and heteroclinic behavior in Hamiltonian systems with saddle-centers
YAGASAKI Kazuyuki
EQUADIFF 2003: Proceedings of the International Conference on Differential Equations Hasselt, Belgium, 22 – 26 July 2003   984-989   Feb 2005   [Invited]
YAGASAKI Kazuyuki
Systems, control and information   49(1) 8-13   Jan 2005   [Invited]
Kokubu Hiroshi, Kazuyuki Yagasaki, Masaharu Taniguchi
Bulletin of the Japan Society for Industrial and applied Mathematics   14(1) 92-93   Mar 2004   [Invited]
YAGASAKI Kazuyuki
IEICE technical report. Nonlinear problems   103(740) 79-84   Mar 2004
We consider two problems to design low cost Earth-to-Moon transfers of a spacecraft and low energy periodic ffait of a walking robot, and demonstrate the usefulness of dynamical systems theory in the new applications.
YAGASAKI Kazuyuki
IEICE technical report. Nonlinear problems   103(740) 91-96   Mar 2004
Using the averaging method and an extended version of the subharmonic Melnikov method, we analyze atomic force microscopy cantilevers tapping on samoles. Many parts of necessary computations for application of these analytical methods are performe...
YAGASAKI Kazuyuki
Dynamics and Design Conference : 機械力学・計測制御講演論文集 : D & D   2003(0)    Sep 2003
We consider a problem of constructing a spacecraft transfer trajectory with low cost and moderate flight time from the Earth to the Moon. We adopt as the spacecraft model the planar circular restricted three-body problem or its perturbation due to...
H. Tamagawa,F. Nogata,T. Watanabe,A. Abe and K. Yagasaki
2002 IEEE International Conference on Industrial Technology Proceedings, Bangkok, Thailand   2 945-949   Dec 2002
YAGASAKI Kazuyuki
Dynamics and Design Conference : 機械力学・計測制御講演論文集 : D & D   2002(0)    Sep 2002
We study a mathematical model for unforced and undamped, straight beams. this system is governed by an integro, partial differential equation, and its energy is conservative : It is an infinite-degree-of-freedom Hamiltonian system. We can derive "...
KOUYAMA Masatoshi, YAGASAKI Kazuyuki
Dynamics and Design Conference : 機械力学・計測制御講演論文集 : D & D   2002(0)    Sep 2002
Detection of periodic orbits (POs) from chaotic time series is one of central issue since unstable POs embedded in chaotic atractors provide us with useful information for controlling chaos. Some techniques based on delay coordinates embedded for ...
Detection of subharmonics and their bifurcations in forced oscillations: Some extensions of the subharmonic Melnikov method
YAGASAKI Kazuyuki
Recent Research Developments in Sound and Vibration   1(2) 179-211   Jun 2002   [Invited]
YAGASAKI Kazuyuki
東海支部総会講演会講演論文集   2002(51) 81-82   Mar 2002
Bifurcations and chaos in forced, coupled pendula
YAGASAKI Kazuyuki
Proceedings of the ASME Design Engineering Technical Conference   6C 2773-2777   Sep 2001
YAGASAKI Kazuyuki
茨城講演会講演論文集 : Ibaraki district conference   2001 193-194   Sep 2001
In a previous report, numerical computations of three-dimensinal motions of a rigid body representing a cup which collides with complicated surfaces were presented. An influence of friction in collisions was taken into consideration there, and the...
YAGASAKI Kazuyuki, KOUYAMA Masatoshi
東海支部地区講演会講演論文集   2001 122-123   Sep 2001
YAGASAKI Kazuyuki, KUMAGAI Moriyoshi
年次大会講演論文集 : JSME annual meeting   0(1) 271-272   Aug 2001
We apply the external feedback technique to control chaos in real physical systems. The target, unstable periodic orbits embedded in chaotic attractors are obtained from chaotic time series in terms of the delay coordinates technique. We demonstra...
YAGASAKI Kazuyuki
Dynamics and Design Conference : 機械力学・計測制御講演論文集 : D & D   2001(0)    Aug 2001
Using the averaging method and Melnikov-type techniques, we study forced, coupled pendula and show that they exhibit very complicated dynamics. First, the averaged system for small oscillations of the pendula near the hanging state is analyzed. Co...
YAGASAKI Kazuyuki
茨城講演会講演論文集 : Ibaraki district conference   2000 109-110   Sep 2000
This report presents numerical computations of three-dimensinal motions of a rigid body colliding with complicated surfaces. When it collides with complicated surfaces, the contact force has not only a normal component for the contact plane but al...
YAGASAKI Kazuyuki
Dynamics and Design Conference : 機械力学・計測制御講演論文集 : D & D   2000(0)    Sep 2000
We study rotary motions in a damped pendulum subjected to periodically varying torque. Using a Melinikov-type technique and the averaging method, we detect the occurrence of quasiperiodic rotations constructing a stable invariant torus in nonreson...
YAGASAKI Kazuyuki
年次大会講演論文集 : JSME annual meeting   2000(1) 869-870   Jul 2000
We consider a class of three or more degrees of freedom Hamiltonian systems which have saddle-centers with homoclinic orbits. Using a Melnikov-type global perturbation technique, we obtain a condition under which transverse homoclinic and heterocl...
Yagasaki Kazuyuki
応用数理   7(4) 321-322   Dec 1997   [Invited]
The Melnikov theory for subharmonics and chaos, and its extension to forced coupled oscillators
YAGASAKI Kazuyuki
Proceedings of the 2nd European Oscillations Conference (L. Pust and F. Peterka, eds.)   1 495-498   Sep 1996
Kondou Takahiro, Yagasaki Kazuyuki
Transactions of the Japan Society of Mechanical Engineers. C   61(583) 746-751   Mar 1995   [Invited]
Random vibrations of a beam structure with elastoplastic hysteresis
K. Kimura, K. Yagasaki and M. Sakata
Proceedings of Ninth World Conference on Earthquake Engineering (Tokyo-Kyoto)   5 241-246   Aug 1988

Books etc

 
Nonlinear Dynamics: New Theoretical and Applied Results
YAGASAKI Kazuyuki (Part:Contributor, Melnikov’s method and chaos in quasiperiodically forced systems)
Akademie-Verlag   Oct 1995   

Conference Activities & Talks

 
Nonintegrability of parametrically forced nonlinear oscillators
MOTONAGA Shoya, YAGASAKI Kazuyuki
27 Sep 2018   
Chaos in randamly perturbed dynamical systems
YAGASAKI Kazuyuki
27 Sep 2018   
Nonintegrability of the unfoldings of codomension‐two bifurcations
ACOSTA‐HUMANEZ Primitivo B., YAGASAKI Kazuyuki
3 Sep 2018   
Bifurcation of relative equilibria in infinite‐dimensional Hamiltonian systems
YAGASAKI Kazuyuki, YAMAZOE Shotaro
The 12th AIMS Conference on Dynamical Systems, Differential Equations and Applications   5 Jul 2018   
Nonintegrability of the unfoldings of codomension-two bifurcations [Invited]
YAGASAKI Kazuyuki
International Conference on Algebraic Methods in Dynamical Systems   20 Jun 2018   
Heteroclinic orbits and nonintegrability in two-degree-of-freedom Hamiltonian systems with saddle-centers
YAGASAKI Kazuyuki, Shogo Yamanaka
International Conference on Algebraic Methods in Dynamical Systems   18 Jun 2018   
Nonintegrability of parametrically forced nonlinear oscillators
MOTONAGA Shoya, YAGASAKI Kazuyuki
International Conference on Algebraic Methods in Dynamical Systems   18 Jun 2018   
Nonintegrability of the normal forms of codomension-two bifurcations
YAGASAKI Kazuyuki
4 Jun 2018   
Bifurcations of radially symmetric solutions in a coupled ell iptic system with critical exponents
Stachowiak Tomasz, YAGASAKI Kazuyuki
7 Sep 2017   
Nonintegrability of the normal form for the fold-Hopf bifurcation
YAGASAKI Kazuyuki
9 Jun 2017   
Melnikov processes and chaos in randomly perturbed dynamical systems [Invited]
YAGASAKI Kazuyuki
The 11th AIMS Conference on Dynamical Systems   4 Jul 2016   
Melnikov processes and chaos in randomly perturbed dynamical systems
YAGASAKI Kazuyuki
2015 NCTS Workshop on Dynamical Systems   May 2015   
Existence and uniqueness of positive radial solutions to a class of semilinear elliptic equations in R^d with d \ge 2
YAGASAKI Kazuyuki
Jan 2015   
Analytic and algebraic conditions for bifurcations of homoclinic orbits in reversible systems [Invited]
YAGASAKI Kazuyuki
International Conference in Algebraic Methods in Dynamical Systems   Oct 2014   
Melnikov processes and chaos in randomly perturbed dynamical systems [Invited]
YAGASAKI Kazuyuki
RIMS Conference/The 6th CREST-SBM International Conference New Directions in Applied Dynamical Systems   Mar 2014   
YAGASAKI Kazuyuki
RIMS Workshop Progress in Qualitative Theory of Ordinary Differential Equations   Nov 2013   
YAGASAKI Kazuyuki
KAM Theory and Related Topics in Hamiltonian Systems   Jun 2013   
Application of the subharmonic Melnikov method to piecewise smooth system
YAGASAKI Kazuyuki
SIAM Conference on Applications of Dynamical Systems   May 2013   
Analytic and algebraic conditions for bifurcations of homoclinic orbits in reversible systems
YAGASAKI Kazuyuki
The 4th MSJ-SI, Nonlinear Dynamics in Partial Differential Equations   Sep 2011   
Some applications of differential Galois theory in dynamical systems
YAGASAKI Kazuyuki
SIAM Conference on Applications of Dynamical Systems   May 2011   
Bifurcations from one-parameter families of symmetric periodic orbits
YAGASAKI Kazuyuki
Joint SIAM/RSME-SCM-SEMA Meeting Emerging Topics in Dynamical Systems and Partial Differential Equations DSPDEs’10   Jun 2010   
Subharmonic Melnikov method and its application to bi- and tri-linear oscillators [Invited]
YAGASAKI Kazuyuki
Research Workshop on Bifurcations in Oscillators with Elastic and Impact Constraints   Nov 2009   
Heteroclinic connections between triple collisions and relative periodic orbits in the isosceles three-body problem
YAGASAKI Kazuyuki
SIAM Conference on Applications of Dynamical Systems   May 2009