Lect.dr. Vuletescu Victor

Data si locul nasterii: 3 ianuarie 1973, Valenii de Munte, judetul Prahova.

Educatia: A absolvit Facultatea de Matematica, sectia matematica-cercetare a Universitatii Bucuresti in 1996.
Teza de doctorat: A sustinut doctoratul cu teza: "Noi rezultate in teoria inelelor graduate si a algebrelor Hopf" in anul 2000 la Universitatea din Bucuresti.
Pozitii academice: A fost preparator in perioada 1998-2000, asistent 2000-2002, iar din 2002 in prezent este Lector la Catedra de Algebra.
Domenii de interes stiintific: Teoria grupurilor, Inele si module graduate, Algebre Hopf, Teoria categoriilor, Algebre Lie, Grupuri cuantice.

Articole stiintifice

Modules Graded by G-Sets. Duality and Finiteness Conditions, J. Algebra 195(1997), nr.2, 624-633 (cu S.Dascalescu si L.Grünenfelder).
A Generalization of the Quasi-Hopf Algebra D^ω(G), Comm. Algebra, 26(1998), nr.12, 4125-4141 (cu F.Panaite).
Injective Modules Graded by G-Sets, Comm. Algebra, 27(1999), nr.7, 3537-3543.
On the antipode of semi-Hopf algebras and braided semi-Hopf algebras, Rev. Roumaine Math. Pures Appl, 44(1999), nr.3, 329-340.
Quantum traces and quantum dimension for quasi-Hopf algebras, Comm. Algebra, 27(1999), nr.12, 6103-6122 (cu F.Panaite si F.V.Oystaeyen).
Quasi-Hopf algebra actions and smash product, Comm. Algebra, 28(2000), nr.2, 631-651 (cu F.Panaite si F.V.Oystaeyen).
Relative Hopf modules for (dual) quasi-Hopf algebras, J. Algebra, 229(2000), nr.2, 632-659 (cu E.Nauwelaerts).
Radford's biproduct for quasi-Hopf algebras and bosonization, J.Pure Appl. Algebra, 174(2002), nr.1, 1-42 (cu E.Nauwelaerts).
Dual Drinfel'd double by diagonal crossed coproduct, Rev. Roum. Math. Pures Appl., 47(2002), nr.3, 271-294 (cu B.Chirita).
Dual quasi-Hopf algebra coactions, smash coproducts and relative Hopf modules, Rev. Roum. Math. Pures Appl., 47(2002), nr.4, 415-443 (cu E.Nauwelaerts).
Quasitriangular and ribbon quasi-Hopf algebras, Comm.Algebra, 31(2003), nr.2, 657-672.(cu E.Nauwelaerts)
The quantum double for quasitriangular quasi-Hopf algebras, Comm.Algebra, 31(2003), nr.3, 1403-1425 (cu S.Caenepeel)
Integrals for (dual) quasi-Hopf algebras. Applications, J.Algebra, 266(2003), nr.2, 552-583 (cu S.Caenepeel)
Two-sided two-cosided Hopf modules and Doi-Hopf modules for quasi-Hopf algebras, J.Algebra, 270(2003), nr.1, 55-95 (cu S.Caenepeel)
Factorizable quasi-Hopf algebras, applications, J.Pure Appl. Algebra, 194(2004), nr.1-2, 39-84 (cu B.Torrecillas)
More properties of Yetter-Drinfeld modules over quasi-Hopf algebras. Hopf algebras in noncommutative geometry and physics, 89-112, Lecture Notes in Pure and Appl. Math., 239, Dekker, New York, 2005 (cu S.Caenepeel, Fl.Panaite)
Yetter-Drinfeld categories for quasi-Hopf algebras, Comm. Algebra, 34(2006), nr.1, 1-35 (cu S.Caenepeel, Fl.Panaite)
Generalized diagonal crossed products and smash products for quasi-Hopf algebras. Applications. Comm.Math.Phys., 266(2006), nr.2, 355-399 (cu Fl.Panaite, F.Van Oystaeyen)
Doi-Hopf modules and Yetter-Drinfeld modules for quasi-Hopf algebras, Comm.Algebra, 34(2006), nr.9, 3413-3449 (cu S.Caenepeel, B.Torrecillas)
Two-sided two-cosided Hopf modules and Yetter-Drinfeld modules for quasi-Hopf algebras, Appl.Categ.Structures, 14(2006), nr.5-6, 503-530 (cu B.Torrecillas)
Radford's S⁴ formula for co-Frobenius Hopf algebras, J.Algebra, 307(2007), nr.1, 330-342 (cu M.Beattie, B.Torrecillas)

Actualizat: 12 noiembrie 2007

Data si locul nasterii: 12 iunie 1963 in Bucuresti.

Pentru studenti:

In atentia studentilor anul I, seria 12: Subiecte examen de Geometrie

In atentia studentilor de la Seria 40, Cursul de "Fundamentele Geometriei" Subiecte de examen

In atentia studentilor de la cursul de Algebra si geometrie Computationala

Educatia: A absolvit Facultatea de Matematica, Universitatea Bucuresti in 1986 si anul V de specializare in 1987.
Teza de doctorat: Doctor in Matematica din 1995 cu teza "Submersii riemanniene si hermitiene - Cazul fibratilor olomorfi", indrumator fiind prof. dr. Steriu Ianus.
Pozitii academice: A lucrat ca profesor la liceu in perioada 1987-1990 si ca cercetator la ITCI in perioada 1990-1991. Asistent la Catedra de Geometrie intre 1991-1995. Din 1996 este Lector.
Cursuri predate: A tinut cursuri de Geometrie (anul I), Geometrie Diferentiala (anii II si III), Fundamentele Geometriei (anul IV), Topologie generala si algebrica (anii I si II), Capitole speciale de geometrie (anul IV), Teoria fascicolelor si topologie algebrica (anul III), Algebra si geometrie Computationala (anul III).
Domenii de interes stiintific: varietati complexe compacte, fibrati vectoriali olomorfi.

Incepand cu 1 Iunie 2005, cercetator stiintific la Mathematisches Institut, Universitatea Georg-August, Goettingen, Germania

Bursier post-doc. in perioada Nov.1997 - Oct.1998 la Univ. Trieste (Italia).
Profesor invitat la Ruhr-Universitaet Bochum, 2002-2003, sem. I.

Conferinte tinute in strainatate: Milano, Ferara, Catania, Kaiserslautern, Bochum, Essen.

Organizator impreuna cu Prof.dr. Juergen Herzog (Essen) a Workshop-ului NATO ARW "Commutative Algebra, Singularities and Computer Algebra", Sinaia, Romania, Septembrie 2002.

Articole stiintifice

Holomorphic and harmonic maps of locally conformal Kaehler manifolds. Boll. Unione Mat. Ital., VII. Ser., A 9, No.3, 569-579 (1995).
On the Picard group of some normal surfaces. Rev. Roum. Math. Pures Appl. 40, No.1, 35-38 (1995).
Sur l'existence de fibres vectoriels stables sur les surfaces non-kaehleriennes. (Existence of stable vector bundles on non-Kaehler surfaces). C.R. Acad. Sci., Paris, Ser. I 321, No.5, 591-593 (1995).
An elementary proof of Banica-LePotier's inequality Δ ≥ 0. An. Univ. Bucur., Mat. 46, 97-100 (1997).
Relating vector bundles on a nonalgebraic surface with those on its blow-up, Analale St. Univ. Ovidius Constanta, 5 (1997), no.2.
On the Neron-Severi group of some non-Kaehler principal elliptic bundles. Rev. Roum. Math. Pures Appl. 43, No.1-2, 245-251 (1998).