{"id":{"repo_id":"greece","oai_identifier":"oai:10442/1158"},"canonical_url":"https://search.dev.ndltd.org/etd/greece/oai:10442/1158","repository":{"repo_id":"greece","name":"Greek National Archive of PhD Theses","base_url":"https://phdtheses.ekt.gr/eadd_oai/request"},"display":{"title":"ΣΥΜΒΟΛΗ ΣΤΗΝ ΜΕΛΕΤΗ ΤΟΥ ΦΩΤΟΒΑΡΥΤΙΚΟΥ ΠΕΡΙΟΡΙΣΜΕΝΟΥ ΠΡΟΒΛΗΜΑΤΟΣ ΤΩΝ ΤΡΙΩΝ ΣΩΜΑΤΩΝ","abstract":"IN THIS THESIS THE RESTRICTED CIRCULAR THREE-BODY PROBLEM IS STUDIED WITH THE ADDITIONAL INFLUENCE OF THE PRESSURE DUE TO RADIATION EMITTED FROM ONE AT LEAST OF THE MAIN BODIES (RADZIEVSKII MODEL). IN THE FIRST CHAPTER THE EQUATIONS OF MOTION OF THE THIRD BODY ARE GIVEN IN AN INERTIAL AS WELL AS IN A DIMENSIONLESS ROTATING FRAME (WHERE AN INTEGRAL OF MOTION EXISTS) . THE VARIATIONAL EQUATIONSOF FIRST AND SECOND ORDER ARE ALSO GIVEN. IN THE SECOND CHAPTER THE EXISTENCE,LOCATION AND LINEAR STABILITY OF THE EQUILIBRIUM POINTS OF THE PROBLEM IS STUDIED. IN THE THIRD CHAPTER THE EVOLUTION OF THE AREAS WHERE THE THIRD BODY IS ABLE TO MOVE ACCORDING TO THE VALUE OF THE INTEGRAL OF MOTION, WHEN ONLY ONE OF THE MAIN BODIES RADIATES. IN THE FOURTH CHAPTER THE METHODS OF LINEAR STABILITY ANALYSIS OF PERIODIC ORBITS ARE DISCUSSED. THE FIFTH CHAPTER CONTAINS THE STUDYOF SOME, ALREADY KNOWN FROM THE CLASSICAL PROBLEM, FAMILIES OF PERIODIC ORBITSAND THE STUDY OF THEIR STABILITY. IN THE LAST CHAPTER FAMILIES OF THREE-DIMENSIONAL PERIODIC ORBITS THAT \"BEGIN\" FROM THE OUT OF THE ORBITAL PLANE OF THE MAIN BODIES EQUILIBRIUM POINTS, WHEN ONLY ONE OF THE MAIN BODIES RADIATES.","abstract_html":"IN THIS THESIS THE RESTRICTED CIRCULAR THREE-BODY PROBLEM IS STUDIED WITH THE ADDITIONAL INFLUENCE OF THE PRESSURE DUE TO RADIATION EMITTED FROM ONE AT LEAST OF THE MAIN BODIES (RADZIEVSKII MODEL). IN THE FIRST CHAPTER THE EQUATIONS OF MOTION OF THE THIRD BODY ARE GIVEN IN AN INERTIAL AS WELL AS IN A DIMENSIONLESS ROTATING FRAME (WHERE AN INTEGRAL OF MOTION EXISTS) . THE VARIATIONAL EQUATIONSOF FIRST AND SECOND ORDER ARE ALSO GIVEN. IN THE SECOND CHAPTER THE EXISTENCE,LOCATION AND LINEAR STABILITY OF THE EQUILIBRIUM POINTS OF THE PROBLEM IS STUDIED. IN THE THIRD CHAPTER THE EVOLUTION OF THE AREAS WHERE THE THIRD BODY IS ABLE TO MOVE ACCORDING TO THE VALUE OF THE INTEGRAL OF MOTION, WHEN ONLY ONE OF THE MAIN BODIES RADIATES. IN THE FOURTH CHAPTER THE METHODS OF LINEAR STABILITY ANALYSIS OF PERIODIC ORBITS ARE DISCUSSED. THE FIFTH CHAPTER CONTAINS THE STUDYOF SOME, ALREADY KNOWN FROM THE CLASSICAL PROBLEM, FAMILIES OF PERIODIC ORBITSAND THE STUDY OF THEIR STABILITY. IN THE LAST CHAPTER FAMILIES OF THREE-DIMENSIONAL PERIODIC ORBITS THAT "BEGIN" FROM THE OUT OF THE ORBITAL PLANE OF THE MAIN BODIES EQUILIBRIUM POINTS, WHEN ONLY ONE OF THE MAIN BODIES RADIATES.","abstract_has_math":false,"creators":["Ράγγος, Όμηρος"],"institution":"University of Patras","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":[],"committee_chairs":[],"committee_members":[],"year":1989,"date_issued":"1989","date_published":"1989","updated_at":"2026-07-24T02:24:46Z","subjects":["Επιφάνειες μηδενικής ταχύτητας","ΕΥΣΤΑΘΕΙΑ ΠΕΡΙΟΔΙΚΩΝ ΤΡΟΧΙΩΝ","ΕΥΣΤΑΘΕΙΑ ΣΗΜΕΙΩΝ ΙΣΟΡΡΟΠΙΑΣ","Μαθηματικά","ΜΑΘΗΜΑΤΙΚΗ ΦΥΣΙΚΗ","Περιοδικές τροχιές","ΠΕΡΙΟΡΙΣΜΕΝΟΣ","Σημεία ισορροπίας","ΦΩΤΟΒΑΡΥΤΙΚΟΣ","Equilibrium points","MATHEMATICAL PHYSICS","Mathematics","Periodic orbits","PHOTOGRAVITATIONAL","RESTRICTED","STABILITY OF EQUILIBRIUM POINTS","STABILITY OF PERIODIC ORBITS","Zero velocity surfaces","Φυσικές Επιστήμες","Natural Sciences"],"languages":["gre"],"rights":[],"rights_urls":[],"identifier_entries":[{"key":"dc:identifier","label":"Identifier","values":["10.12681/eadd/1158"],"render_values":[{"text":"10.12681/eadd/1158","href":"https://doi.org/10.12681/eadd/1158","code":true}]}]},"links":{"outbound_url":"http://hdl.handle.net/10442/hedi/1158","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:creator","label":"Author","values":["Ράγγος, Όμηρος"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["1989"]},{"key":"dc:publisher","label":"Institution","values":["University of Patras","Πανεπιστήμιο Πατρών"]},{"key":"dc:type","label":"Dc Type","values":["PhD Thesis"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Επιφάνειες μηδενικής ταχύτητας","ΕΥΣΤΑΘΕΙΑ ΠΕΡΙΟΔΙΚΩΝ ΤΡΟΧΙΩΝ","ΕΥΣΤΑΘΕΙΑ ΣΗΜΕΙΩΝ ΙΣΟΡΡΟΠΙΑΣ","Μαθηματικά","ΜΑΘΗΜΑΤΙΚΗ ΦΥΣΙΚΗ","Περιοδικές τροχιές","ΠΕΡΙΟΡΙΣΜΕΝΟΣ","Σημεία ισορροπίας","ΦΩΤΟΒΑΡΥΤΙΚΟΣ","Equilibrium points","MATHEMATICAL PHYSICS","Mathematics","Periodic orbits","PHOTOGRAVITATIONAL","RESTRICTED","STABILITY OF EQUILIBRIUM POINTS","STABILITY OF PERIODIC ORBITS","Zero velocity surfaces","Φυσικές Επιστήμες","Natural Sciences"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["gre"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["10.12681/eadd/1158","http://hdl.handle.net/10442/hedi/1158"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["IN THIS THESIS THE RESTRICTED CIRCULAR THREE-BODY PROBLEM IS STUDIED WITH THE ADDITIONAL INFLUENCE OF THE PRESSURE DUE TO RADIATION EMITTED FROM ONE AT LEAST OF THE MAIN BODIES (RADZIEVSKII MODEL). IN THE FIRST CHAPTER THE EQUATIONS OF MOTION OF THE THIRD BODY ARE GIVEN IN AN INERTIAL AS WELL AS IN A DIMENSIONLESS ROTATING FRAME (WHERE AN INTEGRAL OF MOTION EXISTS) . THE VARIATIONAL EQUATIONSOF FIRST AND SECOND ORDER ARE ALSO GIVEN. IN THE SECOND CHAPTER THE EXISTENCE,LOCATION AND LINEAR STABILITY OF THE EQUILIBRIUM POINTS OF THE PROBLEM IS STUDIED. IN THE THIRD CHAPTER THE EVOLUTION OF THE AREAS WHERE THE THIRD BODY IS ABLE TO MOVE ACCORDING TO THE VALUE OF THE INTEGRAL OF MOTION, WHEN ONLY ONE OF THE MAIN BODIES RADIATES. IN THE FOURTH CHAPTER THE METHODS OF LINEAR STABILITY ANALYSIS OF PERIODIC ORBITS ARE DISCUSSED. THE FIFTH CHAPTER CONTAINS THE STUDYOF SOME, ALREADY KNOWN FROM THE CLASSICAL PROBLEM, FAMILIES OF PERIODIC ORBITSAND THE STUDY OF THEIR STABILITY. IN THE LAST CHAPTER FAMILIES OF THREE-DIMENSIONAL PERIODIC ORBITS THAT \"BEGIN\" FROM THE OUT OF THE ORBITAL PLANE OF THE MAIN BODIES EQUILIBRIUM POINTS, WHEN ONLY ONE OF THE MAIN BODIES RADIATES.","ΣΤΗΝ ΔΙΑΤΡΙΒΗ ΑΥΤΗ ΜΕΛΕΤΑΤΑΙ ΤΟ ΠΕΡΙΟΡΙΣΜΕΝΟ ΚΥΚΛΙΚΟ ΠΡΟΒΛΗΜΑ ΤΩΝ ΤΡΙΩΝ ΣΩΜΑΤΩΝΜΕ ΤΗΝ ΕΠΙΠΛΕΟΝ ΕΠΙΔΡΑΣΗ ΤΗΣ ΠΙΕΣΗΣ ΑΚΤΙΝΟΒΟΛΙΑΣ ΠΟΥ ΕΚΠΕΜΠΕΤΑΙ ΑΠΟ ΕΝΑ ΤΟΥΛΑΧΙΣΤΟΝ ΑΠΟ ΤΑ ΚΥΡΙΑ ΣΩΜΑΤΑ (ΜΟΝΤΕΛΟ RADZIEVSKY). ΣΤΟ ΠΡΩΤΟ ΚΕΦΑΛΑΙΟ ΠΑΡΑΤΙΘΕΝΤΑΙΟΙ ΕΞΙΣΩΣΕΙΣ ΚΙΝΗΣΗΣ ΤΟΥ ΤΡΙΤΟΥ ΣΩΜΑΤΟΣ ΣΕ ΕΝΑ ΑΔΡΑΝΕΙΑΚΟ ΚΑΙ ΣΕ ΕΝΑ ΠΕΡΙΣΤΡΕΦΟΜΕΝΟ ΣΥΣΤΗΜΑ ΣΥΝΤΕΤΑΓΜΕΝΩΝ (ΟΠΟΥ ΥΠΑΡΧΕΙ ΚΑΙ ΕΝΑ ΟΛΟΚΛΗΡΩΜΑ ΤΗΣ ΚΙΝΗΣΗΣ) ΚΑΙ ΟΙ ΕΞΙΣΩΣΕΙΣ ΜΕΤΑΒΟΛΩΝ ΠΡΩΤΗΣ ΚΑΙ ΔΕΥΤΕΡΗΣ ΤΑΞΗΣ. ΣΤΟ ΔΕΥΤΕΡΟ ΚΕΦΑΛΑΙΟ ΜΕΛΕΤΑΤΑΙΗ ΥΠΑΡΞΗ, Η ΘΕΣΗ ΚΑΙ Η ΓΡΑΜΜΙΚΗ ΕΥΣΤΑΘΕΙΑ ΤΩΝ ΣΗΜΕΙΩΝ ΙΣΟΡΡΟΠΙΑΣ ΤΟΥ ΠΡΟΒΛΗΜΑΤΟΣ. ΣΤΟ ΤΡΙΤΟ ΚΕΦΑΛΑΙΟ ΠΕΡΙΓΡΑΦΕΤΑΙ Η ΕΞΕΛΙΞΗ ΤΩΝ ΠΕΡΙΟΧΩΝ ΟΠΟΥ ΤΟ ΤΡΙΤΟ ΣΩΜΑ ΕΙΝΑΙ ΔΥΝΑΤΟ ΝΑ ΚΙΝΗΘΕΙ ΣΥΜΦΩΝΑ ΜΕ ΤΗΝ ΤΙΜΗ ΤΟΥ ΟΛΟΚΛΗΡΩΜΑΤΟΣ ΤΗΣ ΚΙΝΗΣΗΣ ΟΤΑΝ ΕΝΑ ΜΟΝΟ ΑΠΟ ΤΑ ΔΥΟ ΚΥΡΙΑ ΣΩΜΑΤΑ ΑΚΤΙΝΟΒΟΛΕΙ. ΣΤΟ ΤΕΤΑΡΤΟ ΚΕΦΑΛΑΙΟ ΕΞΕΤΑΖΟΝΤΑΙ ΟΙ ΜΕΘΟΔΟΙ ΜΕΛΕΤΗΣ ΤΗΣ ΓΡΑΜΜΙΚΗΣ ΕΥΣΤΑΘΕΙΑΣ ΠΕΡΙΟΔΙΚΩΝ ΤΡΟΧΙΩΝ. ΤΟ ΠΕΜΠΤΟ ΚΕΦΑΛΑΙΟ ΠΕΡΙΕΧΕΙ ΤΗΝ ΜΕΛΕΤΗ ΜΕΡΙΚΩΝ, ΓΝΩΣΤΩΝ ΗΔΗ ΑΠΟ ΤΟ ΚΛΑΣΣΙΚΟ ΠΡΟΒΛΗΜΑ, ΟΙΚΟΓΕΝΕΙΩΝ ΠΕΡΙΟΔΙΚΩΝ ΤΡΟΧΙΩΝ, ΚΑΙ ΤΗΝ ΜΕΛΕΤΗ ΤΗΣ ΕΥΣΤΑΘΕΙΑΣ ΤΟΥΣ. ΣΤΟ ΤΕΛΕΥΤΑΙΟ ΚΕΦΑΛΑΙΟ ΠΑΡΟΥΣΙΑΖΟΝΤΑΙ ΟΙΚΟΓΕΝΕΙΕΣ ΠΡΟΔΙΑΣΤΑΤΩΝ ΠΕΡΙΟΔΙΚΩΝ ΤΡΟΧΙΩΝ ΠΟΥ \"ΞΕΚΙΝΟΥΝ\" ΑΠΟ ΤΑ ΕΚΤΟΣ ΤΡΟΧΙΑΚΟΥ ΕΠΙΠΕΔΟΥ ΤΩΝ ΚΥΡΙΩΝ ΣΩΜΑΤΩΝ ΣΗΜΕΙΑ ΙΣΟΡΡΟΠΙΑΣ, ΟΤΑΝ ΕΝΑ ΜΟΝΟ ΑΠΟ ΤΑ ΔΥΟ ΚΥΡΙΑ ΣΩΜΑΤΑ ΑΚΤΙΝΟΒΟΛΕΙ."]},{"key":"dc:title","label":"Title","values":["ΣΥΜΒΟΛΗ ΣΤΗΝ ΜΕΛΕΤΗ ΤΟΥ ΦΩΤΟΒΑΡΥΤΙΚΟΥ ΠΕΡΙΟΡΙΣΜΕΝΟΥ ΠΡΟΒΛΗΜΑΤΟΣ ΤΩΝ ΤΡΙΩΝ ΣΩΜΑΤΩΝ","CONTRIBUTION TO THE STUDY OF THE PHOTOGRAVITATIONAL RESTRICTED THREE- BODY PROBLEM"]}]}],"canonical_facts":{"dc:creator":["Ράγγος, Όμηρος"],"dc:date":["1989"],"dc:description":["IN THIS THESIS THE RESTRICTED CIRCULAR THREE-BODY PROBLEM IS STUDIED WITH THE ADDITIONAL INFLUENCE OF THE PRESSURE DUE TO RADIATION EMITTED FROM ONE AT LEAST OF THE MAIN BODIES (RADZIEVSKII MODEL). IN THE FIRST CHAPTER THE EQUATIONS OF MOTION OF THE THIRD BODY ARE GIVEN IN AN INERTIAL AS WELL AS IN A DIMENSIONLESS ROTATING FRAME (WHERE AN INTEGRAL OF MOTION EXISTS) . THE VARIATIONAL EQUATIONSOF FIRST AND SECOND ORDER ARE ALSO GIVEN. IN THE SECOND CHAPTER THE EXISTENCE,LOCATION AND LINEAR STABILITY OF THE EQUILIBRIUM POINTS OF THE PROBLEM IS STUDIED. IN THE THIRD CHAPTER THE EVOLUTION OF THE AREAS WHERE THE THIRD BODY IS ABLE TO MOVE ACCORDING TO THE VALUE OF THE INTEGRAL OF MOTION, WHEN ONLY ONE OF THE MAIN BODIES RADIATES. IN THE FOURTH CHAPTER THE METHODS OF LINEAR STABILITY ANALYSIS OF PERIODIC ORBITS ARE DISCUSSED. THE FIFTH CHAPTER CONTAINS THE STUDYOF SOME, ALREADY KNOWN FROM THE CLASSICAL PROBLEM, FAMILIES OF PERIODIC ORBITSAND THE STUDY OF THEIR STABILITY. IN THE LAST CHAPTER FAMILIES OF THREE-DIMENSIONAL PERIODIC ORBITS THAT \"BEGIN\" FROM THE OUT OF THE ORBITAL PLANE OF THE MAIN BODIES EQUILIBRIUM POINTS, WHEN ONLY ONE OF THE MAIN BODIES RADIATES.","ΣΤΗΝ ΔΙΑΤΡΙΒΗ ΑΥΤΗ ΜΕΛΕΤΑΤΑΙ ΤΟ ΠΕΡΙΟΡΙΣΜΕΝΟ ΚΥΚΛΙΚΟ ΠΡΟΒΛΗΜΑ ΤΩΝ ΤΡΙΩΝ ΣΩΜΑΤΩΝΜΕ ΤΗΝ ΕΠΙΠΛΕΟΝ ΕΠΙΔΡΑΣΗ ΤΗΣ ΠΙΕΣΗΣ ΑΚΤΙΝΟΒΟΛΙΑΣ ΠΟΥ ΕΚΠΕΜΠΕΤΑΙ ΑΠΟ ΕΝΑ ΤΟΥΛΑΧΙΣΤΟΝ ΑΠΟ ΤΑ ΚΥΡΙΑ ΣΩΜΑΤΑ (ΜΟΝΤΕΛΟ RADZIEVSKY). ΣΤΟ ΠΡΩΤΟ ΚΕΦΑΛΑΙΟ ΠΑΡΑΤΙΘΕΝΤΑΙΟΙ ΕΞΙΣΩΣΕΙΣ ΚΙΝΗΣΗΣ ΤΟΥ ΤΡΙΤΟΥ ΣΩΜΑΤΟΣ ΣΕ ΕΝΑ ΑΔΡΑΝΕΙΑΚΟ ΚΑΙ ΣΕ ΕΝΑ ΠΕΡΙΣΤΡΕΦΟΜΕΝΟ ΣΥΣΤΗΜΑ ΣΥΝΤΕΤΑΓΜΕΝΩΝ (ΟΠΟΥ ΥΠΑΡΧΕΙ ΚΑΙ ΕΝΑ ΟΛΟΚΛΗΡΩΜΑ ΤΗΣ ΚΙΝΗΣΗΣ) ΚΑΙ ΟΙ ΕΞΙΣΩΣΕΙΣ ΜΕΤΑΒΟΛΩΝ ΠΡΩΤΗΣ ΚΑΙ ΔΕΥΤΕΡΗΣ ΤΑΞΗΣ. ΣΤΟ ΔΕΥΤΕΡΟ ΚΕΦΑΛΑΙΟ ΜΕΛΕΤΑΤΑΙΗ ΥΠΑΡΞΗ, Η ΘΕΣΗ ΚΑΙ Η ΓΡΑΜΜΙΚΗ ΕΥΣΤΑΘΕΙΑ ΤΩΝ ΣΗΜΕΙΩΝ ΙΣΟΡΡΟΠΙΑΣ ΤΟΥ ΠΡΟΒΛΗΜΑΤΟΣ. ΣΤΟ ΤΡΙΤΟ ΚΕΦΑΛΑΙΟ ΠΕΡΙΓΡΑΦΕΤΑΙ Η ΕΞΕΛΙΞΗ ΤΩΝ ΠΕΡΙΟΧΩΝ ΟΠΟΥ ΤΟ ΤΡΙΤΟ ΣΩΜΑ ΕΙΝΑΙ ΔΥΝΑΤΟ ΝΑ ΚΙΝΗΘΕΙ ΣΥΜΦΩΝΑ ΜΕ ΤΗΝ ΤΙΜΗ ΤΟΥ ΟΛΟΚΛΗΡΩΜΑΤΟΣ ΤΗΣ ΚΙΝΗΣΗΣ ΟΤΑΝ ΕΝΑ ΜΟΝΟ ΑΠΟ ΤΑ ΔΥΟ ΚΥΡΙΑ ΣΩΜΑΤΑ ΑΚΤΙΝΟΒΟΛΕΙ. ΣΤΟ ΤΕΤΑΡΤΟ ΚΕΦΑΛΑΙΟ ΕΞΕΤΑΖΟΝΤΑΙ ΟΙ ΜΕΘΟΔΟΙ ΜΕΛΕΤΗΣ ΤΗΣ ΓΡΑΜΜΙΚΗΣ ΕΥΣΤΑΘΕΙΑΣ ΠΕΡΙΟΔΙΚΩΝ ΤΡΟΧΙΩΝ. ΤΟ ΠΕΜΠΤΟ ΚΕΦΑΛΑΙΟ ΠΕΡΙΕΧΕΙ ΤΗΝ ΜΕΛΕΤΗ ΜΕΡΙΚΩΝ, ΓΝΩΣΤΩΝ ΗΔΗ ΑΠΟ ΤΟ ΚΛΑΣΣΙΚΟ ΠΡΟΒΛΗΜΑ, ΟΙΚΟΓΕΝΕΙΩΝ ΠΕΡΙΟΔΙΚΩΝ ΤΡΟΧΙΩΝ, ΚΑΙ ΤΗΝ ΜΕΛΕΤΗ ΤΗΣ ΕΥΣΤΑΘΕΙΑΣ ΤΟΥΣ. ΣΤΟ ΤΕΛΕΥΤΑΙΟ ΚΕΦΑΛΑΙΟ ΠΑΡΟΥΣΙΑΖΟΝΤΑΙ ΟΙΚΟΓΕΝΕΙΕΣ ΠΡΟΔΙΑΣΤΑΤΩΝ ΠΕΡΙΟΔΙΚΩΝ ΤΡΟΧΙΩΝ ΠΟΥ \"ΞΕΚΙΝΟΥΝ\" ΑΠΟ ΤΑ ΕΚΤΟΣ ΤΡΟΧΙΑΚΟΥ ΕΠΙΠΕΔΟΥ ΤΩΝ ΚΥΡΙΩΝ ΣΩΜΑΤΩΝ ΣΗΜΕΙΑ ΙΣΟΡΡΟΠΙΑΣ, ΟΤΑΝ ΕΝΑ ΜΟΝΟ ΑΠΟ ΤΑ ΔΥΟ ΚΥΡΙΑ ΣΩΜΑΤΑ ΑΚΤΙΝΟΒΟΛΕΙ."],"dc:identifier":["10.12681/eadd/1158","http://hdl.handle.net/10442/hedi/1158"],"dc:language":["gre"],"dc:publisher":["University of Patras","Πανεπιστήμιο Πατρών"],"dc:subject":["Επιφάνειες μηδενικής ταχύτητας","ΕΥΣΤΑΘΕΙΑ ΠΕΡΙΟΔΙΚΩΝ ΤΡΟΧΙΩΝ","ΕΥΣΤΑΘΕΙΑ ΣΗΜΕΙΩΝ ΙΣΟΡΡΟΠΙΑΣ","Μαθηματικά","ΜΑΘΗΜΑΤΙΚΗ ΦΥΣΙΚΗ","Περιοδικές τροχιές","ΠΕΡΙΟΡΙΣΜΕΝΟΣ","Σημεία ισορροπίας","ΦΩΤΟΒΑΡΥΤΙΚΟΣ","Equilibrium points","MATHEMATICAL PHYSICS","Mathematics","Periodic orbits","PHOTOGRAVITATIONAL","RESTRICTED","STABILITY OF EQUILIBRIUM POINTS","STABILITY OF PERIODIC ORBITS","Zero velocity surfaces","Φυσικές Επιστήμες","Natural Sciences"],"dc:title":["ΣΥΜΒΟΛΗ ΣΤΗΝ ΜΕΛΕΤΗ ΤΟΥ ΦΩΤΟΒΑΡΥΤΙΚΟΥ ΠΕΡΙΟΡΙΣΜΕΝΟΥ ΠΡΟΒΛΗΜΑΤΟΣ ΤΩΝ ΤΡΙΩΝ ΣΩΜΑΤΩΝ","CONTRIBUTION TO THE STUDY OF THE PHOTOGRAVITATIONAL RESTRICTED THREE- BODY PROBLEM"],"dc:type":["PhD Thesis"]},"updated_at":"2026-07-24T02:24:46Z"}