PHILOSOPHY OF SCIENCE SEMINAR, September

Department of History and Philosophy of Science Eotvos University Budapest, Pazmany P. setany 1/A PHILOSOPHY OF SCIENCE SEMINAR (http://hps.elte.hu/seminar) ________________________________________________ 17 September 4:00 PM 6th floor 6.54 (Language: English) I h i r o T s u d a Division of Mathematics, Graduate School of Science, Hokkaido University, Japan Chaotic itinerancy as a new universal behavior in complex systems In low-dimensional dynamical systems, the dynamical behavior is classified into four categories: a steady state, a periodic state, a quasi-periodic state, and a chaotic state. Each class of behavior is represented by a fixed point attractor, a limit cycle, a torus, and a strange attractor, respectively. However, the complex behavior in high-dimensional dynamical systems is not always described by these attractors. The more ordered but more complex than these types of behavior often appears. We have found one such universal behavior in nonequilibrium neural networks, globally coupled chaotic systems, and optical delayed systems. We called it a chaotic itinerancy. I would like to give a talk on the recent development of the research on chaotic itinerancy. 24 September 4:00 PM 6th floor 6.54 (Language: Hungarian) L u d a s s y M a r i a Philosophy, Eötvös University, Budapest Maganhangzok es matematika (Vowel sounds and mathematics) Eloadasomban a XVIII. szazad, pontosabban a francia felvilagosodas ket filozofiai vegpontjat szeretnem bemutatni, mely a maga modjan ad absurdum vitele - ha ugy tetszik logikailag legkonzekvensebb kifejtese - a maga elofelteveseinek. Az elso a tudomanyos gondolkodast - sot a racionalis reflexiot altalaban - az erkolcsok megrontojakent kezelo moralista felfogasa, Jean-Jacques Rousseau-e, aki a modernitas kritikajat a konyvnyomtatas, az irasbeliseg elveteseig, sot a zenei-maganhangzok dominalta nyelvet felvalto "elidegenedett" massalhangzok altal uralt nyelv kulturkritikajaig fokozta. Elmeleti ellenpolusa a matematikus-filozofus Condorcet, aki a Leibniz kezdemenyezte matematikai-logikai szimbolumrendszert nemcsak a termeszettudosok nemzetekfolotti kommunikacios eszkozenek tekintette, hanem a nemzeti elfogultsagokat, a vallasi eloiteleteket, az altudomanyos tevedeseket automatikusan kikuszobolo, s ezzel az emberi jogok egyetemesseget, a gondolat szabadsagat s az emberek eszbeli es jogi egyenloseget garantalo racionalista csodafegyvernek (avagy a racianalitas vilagtortenelmi hatalomatvetele garanciajanak). A fentemlitett vilagtortenelem fintora, hogy Condorcet kombinatorikajat a Rousseau megalmodta idealok - etnocentrikus allam, idegengyuloletet szentesito nemzeti vallas, teljhatalmu torvenyhozo - realizalasa erdekeben mozgositotta, azaz a matematizalt racionalitast az irracionalitas segedcsapatava alazta. The organizer of the seminar: László E. Szabó -- Laszlo E. Szabo Department of Theoretical Physics Department of History and Philosophy of Science Eotvos University, Budapest H-1518 Budapest, Pf. 32, Hungary Phone/Fax: (36-1)372-2924 Home: (36-1) 200-7318 Mobil/SMS: (36) 20-366-1172 http://hps.elte.hu/~leszabo