My habilitation thesis "Singularités des champs de vecteurs à divergence nulle et à valeurs dans S^1 ou S^2.
Applications en micromagnétisme" can be downloaded   [HERE]


Crossover from symmetric to asymmetric transition layers, preprint  (with L. Döring, F. Otto)  [pdf]


Two-dimensional unit-length vector fields of vanishing divergence,  J. Funct. Anal. 262 (2012), 3465–3494     [pdf]

A zigzag pattern in micromagnetics, J. Math. Pures Appl. 98 (2012), 139-159.
(with R. Moser)     [pdf]

Singularities of divergence-free vector fields with values into S^1 or S^2. Applications to micromagnetics, 

Confluentes Mathematici 4 (2012), 1-80   [pdf]

Gradient vector fields with values into S^1, 
C.R. Acad. Sci. Paris, Ser. I 349 (2011), 883-887   [pdf]

Entropy method for line-energies, Calc. Var. Partial Differential Equations 44 (2012), 375-418 (with B. Merlet)

A compactness result for Landau state in thin-film micromagnetics, Ann. Inst. H. Poincaré, Anal. Non linéaire 28(2011), 247-282 (with F. Otto)    [pdf]

Lower bound for the energy of Bloch walls in micromagnetics, Arch. Ration. Mech. Anal. 199 (2011), 369-406   (with B. Merlet)  [pdf]

Vortex energy and 360° Néel walls in thin films micromagnetics,
Comm. Pure Appl. Math. 63 (2010), 1677-1724  (with H. Knüpfer)    [pdf]

A Gamma-convergence result for Néel walls in micromagnetics,
Calc. Var. Partial Differential Equations 36 (2009), 285-316.   [pdf]

A survey of some new results in ferromagnetic thin films,
Séminaire d'Équations aux Dérivées Partielles (Ecole Polytechnique) 2007--2008,  Exp. No. VI, 19 pp.  [pdf]

A compactness result in thin-film micromagnetics and the optimality of the Néel wall
, J. Eur. Math. Soc. (JEMS)  10 (2008), 909-956.   (with F. Otto)     [pdf]

type identities for an elliptic equation , CRM Proceedings and Lecture Notes, 44 (2008), 75-88    [pdf] 

On the relation between minimizers of a Gamma-limit energy and optimal lifting in BV-space ,
Commun. Contemp. Math 9 (2007), 447-472    (with A. Poliakovsky)     [pdf]

expansion and vortex location for a two dimensional rotating Bose-Einstein condensate, Rev. Math. Phys. 18 (2006), 119--162     (with V. Millot)     [pdf] 

The critical velocity for vortex existence in a two dimensional rotating Bose-Einstein condensate
, J. Funct. Anal. 233(2006), 260-306     (with V. Millot)     [pdf] 

in a 2d rotating Bose-Einstein condensate, C.R. Acad. Sci. Paris, Ser.I 340(2005), 571-576     (with V. Millot)     [pdf] 

The space BV(S^2,S^1) : minimal connection and optimal lifting
, Ann. Inst. H. Poincaré, Anal. Non linéaire 22(2005), 283-302 [pdf, ps ] 

Optimal lifting for BV(S^1,S^1)
, Calc. Var. Partial Differential Equations 23(2005), 83-96     [pdf] 

On an open problem about how to recognize constant functions
, Houston Journal of Mathematics 31(1), 2005, 285-304     [pdf] 

Lifting of BV functions with values in S^1
, C.R. Acad. Sci. Paris, Ser.I 337 (2003), 159-164 (with J. Davila)     [pdf] 




Singularities in some variational problems, VDM Verlag Dr. Müller, Saarbrücken, 2010, 260pp  [pdf] [cover_book] .

Pattern formation in micromagnetics, Oberwolfach Reports, Volume 36/2012 (Calculus of Variations: C. De Lellis, G. Huisken, R. Jerrard).    [pdf] 

Publications in Romanian Journals

Equations and Optimal Control , Proceedings of the International Conference on Nonlinear Operators, Differential Equations and Applications, Cluj-Napoca, 2001, Seminar on fixed point theory Cluj-Napoca, 3/2002, 239-248  (with A. Basson)

Sur les Conjectures de Markus-Yamabe et de la Jacobienne
, Séminaire de la Theorie de la Meilleure Approximation, Convexite et Optimisation, Ed. Srima (2000), 125-141

About an interesting sequence
, Octogon, 1/2000, 173-180

A generalization of convex and midconvex functions
, Analysis, Functional equations, Approximation and Convexity, Proceedings of the Conference Held in Honor of Professor Elena Popoviciu on the Occasion of her 75th Birthday, Ed. Carpatica (1999), 89-93