Author Archive: raphy

Colloquium: Tuesday, January 1, 2019. Speaker: Karim Adiprasito (Hebrew University). Title: “From Hall’s marriage theorem to algebraic geometry (and back to combinatorics)”.

We discuss how something remarkably similar to Hall’s marriage theorem appears naturally in context of a conjecture of Grothendieck in algebraic geometry, and how this is useful to prove some long-standing problems in discrete geometry. For instance, I will prove…
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Colloquium: Tuesday, December 18, 2018. Speaker: Michael Gekhtman (Notre Dame). Title: “Dilogarithm identities in cluster algebras from Hamiltonian/Lagrangian point of view”.

    Place: Room 614 in the Education & Sciences Building Time: 14:00 Date: Tuesday, December 18, 2018   Abstract:   We will discuss a Hamiltonian formalism for cluster mutations using canonical (Darboux) coordinates and piecewise-Hamiltonian flows with Euler dilogarithm playing the role…
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מועדון מתמטי : רפאל יוסטר “על צביעות של המישור ואקסיומת הבחירה” ביום שלישי, 11 בדצמבר, 2018 בשעה 12:10

ההרצאה הבאה של המועדון המתמטי לסמסטר זה תתקיים ביום שלישי, 11 בדצמבר בשעה 12:10 בחדר החוג למתמטיקה חדר 614  בקומה 6 של בניין לחינוך ומדעים פרופ’ רפאל יוסטר (החוג למתמטיקה, אוניברסיטת חיפה) ירצה על המודל המתמטי על צביעות של המישור ואקסיומת הבחירה נתבון בגרף שקבוצת…
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Colloquium: Tuesday, December 11, 2018. Speaker: Alon Nishry (Tel Aviv University). Title: “Value distribution of random power series”.

Department of Mathematics                                                           University of  Haifa   Colloquium   Speaker: Alon Nishry (Tel Aviv University)   Topic: Value distribution of random power series   Place: Room 614 in the Education & Sciences Building Time: 14:00 Date: Tuesday, December 11, 2018   Abstract:   Many…
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Colloquium: Tuesday, December 4, 2018. Speaker: Eran Nevo (Hebrew University). Title: “Polytopes – from simplicial to non-simplicial”.

Department of Mathematics                                                           University of  Haifa   Colloquium   Speaker: Eran Nevo (Hebrew University)   Topic: Polytopes — from simplicial to non-simplicial   Place: Room 614 in the Education & Sciences Building Time: 14:00 Date: Tuesday, December 4, 2018   Abstract: A polytope is…
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