Publications of Gheorghita ZBÃGANU:

 Research Papers

Two-parameter filtrations with respect to which all martingales are strong, Zeit. fur Wahrsch. verw. Geb 61, 1982, p. 437-452 (împreunã cu Zhuang Xigwu).

Reviewed(84k:60047) de Xavier Guyon 60G07(60G60)

Cited by

a. Xing Wu Zhuang ºi Chen Peide , On local comparability among families of sub s- fields, , Acta Mathematica Sinica 24, 2, p. 137-144 (1988)

b. M. Dozzi, Stochastic processes with a multidimensional parameter, Longman Scientific & Technical , 1989.

c. Xing Wu Zhuang, Local Comparability and Vitali condition, Acta Mathematica Sinica 33, 2, p. 244-250(1990)  

On a theorem concerning convergence of martingales with N2 as index set. , Revue Roum.Math. Pures et Appl., 22,8, 1977, p. 1177-1182

Reviewed (57 #14128) de Denis du Brucq 60G45  

Asupra modelãrii unor procese de uzurã in Lucrarile Conferintei Nationale de Teoria probabilitãþilor ºi Statisticã , Craiova, 1982, p. 232-246.

Reviewed(842 706) 690B25  

Asupra unei conjecturi privind mediile condiþionate, Lucrºrile Conferinþei Naþionale de Teoria probabilitãþilor ºi Statisticã , Craiova, 1982, p. 247 - 252

Reviewed(842 707) (60A10)  

Asupra celor mai buni aproximanþi in spaþiile Lp , Stud. Cerc. Mat., 35, 1983, p. 549-561.

Reviewed(85k:41034) de W.W. Bruckner 41A30(46E30)  

Semimarkov models in characterization of telephonic communication channels, Progress in Electronics and Information, 13, 97-105, 1983, p. 97-105 (cu I. Duma ºi G. Oprisan).

Reviewed(792 676) 94A05(60K20  

Ortogonalitatea a doua spaþii de tipul L? ºi studiul unor filtraþii cu indici dubli, Stud. Cerc. Mat., 36, 1984, p.63-72.

Reviewed(85k:60050) 60G05(60A10)  

Two inequalities concerning centered moments , in Proceedings of the 7'th Conf. Probab. Theory Braºov 1982, Editura Academiei Române, Bucureºti 1984, p. 515-518.

Reviewed(88a:60043) de F. Moricz ;60E15

Citat de R. Zaharopol, On products of Conditional Expectation Operators, Canadian Mathematical Bulletin , 33 (3), 1990, p. 257-260  

On stochastically independent continuous functions, Revue Roum.Math. Pures et Appl., 28, 1985, p. 479-483 (cu Florin Gonzacenco).

Reviewed(84j:60024) de J. Galambos ; 60E05  

On computing the OC and ASN for some Markovian SPRT, in Sequential Methods in Statistics. Banach Center Publicationst , 16, PWN Warsaw 1985, p. 423-436 (cu G. Obreja).

Reviewed(87h:62143) de F. Norbert Schmiz ; 62L10 (62M02)  

Some entropy-like indices and their connection with the metrization of the space of the s -algebras, Stud. Cerc. Mat., 38, 1986, p. 72-84.

Reviewed(88c:60013) de E.S. Boylan ; 60A10 (60G42)

Citat de

a. T. Van Zandt, The Haussdorff Metric of s -fields and the value of the information, Ann. Prob. 21, nr. 1, 161-167 (1993).

b. T. H. Blake, Generalized martingales , Probability theory rel. Fieds 79, 3, p. 465-490 (1988)  

Continuous independent functions and construction of processes on W =(0,1), Revue Roum. Math. Pures et Appl., 31, 1986, p. 77-84.

Reviewed(87j:60060) de William Torrez ; 60G15 (60G17)  

A generalization of (F4)-hypothesis of Cairoli and Walsh, Revue Roum. Math. Pures et Appl., 31, 1986, p. 919-922.

Reviewed(88d:60132) de A. Al Husaini ; 60G42 (60G48)  

Some remarks concerning the angle between two subspaces of Lp ,Revue Roum. Math. Pures et Appl., 32, 1987, p. 273-286.

Reviewed(89g:46060) ; 46E30 (28C99)  

Martingale cu indici dubli cu creºteri ortogonale ºi martingale cu variaþie independentã de drum, Stud. Cerc. Mat. , 39, 1987, p. 79-94.

Reviewed(88h:60093) ; 60G48  

When is a planar set a union between a horizontal graph and a vertical one?, Stud. Cerc. Mat. 41, 1989, p. 55-60.

Reviewed(90g:05163) de Larry Bassenspiler ; 05C99  

Some Banach Algebras of functions with bounded variation, Stud.Cerc. Mat., 41 , 1989, p. 513-519 (cu G. Rãuþu)

Reviewed(91e:46068) de F. Brooks ; 46J10

Citat de M. Iosifescu, S. Grigorescu, Dependence with complete connections, Cambridge University Press, 1990  

Computing the angle between two L? - spaces, Stud. Cerc.Mat., 41, 1989, p. 143-148.

Reviewed(90m:46050) de M. Ostrovski ; 46E30  

A class of entropy-like ergodicity coefficients and generalization of Hardy-Littlewood-Polya theorem, Proceedings of Statistical Data Analysis Varna 1992 p. 138-148.  
A class of contraction coefficients and improving the majorization inequalities, Revue Roum. Math. Pures et Appl., 37, 1992, p. 945-957.

Reviewed(94c:15030) de E. Seneta ; 15A51  

Waiting for an ape to type a poem. Bul. Acad. Stiinþe a Republicii Moldova, 2(8), 1992, p. 66-81.  
Relative entropy under mappings by stochastic matrices. Linear Algebra and Its Appl. 179, 1993, p. 311-325 (cu J.E.Cohen, Y.Iwasa, G.Rautu, Mary Beth Ruskai, E.Seneta).

Reviewed(93m:60145) de A. Rhodius ; 15A51

Cited by

a. M. Choi, M.B. Ruskai, E. Seneta, Equivalences of certain entropy coefficients , Lin. Alg. and its appl. 208/109 ,199, p. 29-36

b. D. Morales, L. Pardol, I. Vajda, Uncertainty of Discrete Stoch. Systems - General Theorems and Statistical Inference, IEEE Transactions on Systems, 26,6,681-697 (1996)

c. Rãdulescu Marius, Rãdulescu Sorin, Generalization of Dobrushin inequalities, Journal of Math. Analysis Appl., 204, 3, 631-645 (1996)  

Majorization, monotonicity of relative entropy and stochastic matrices. In Proceedings of the Doeblin Conference, ed. Harry Cohn, Contemporary Mathematics 149, (1993), 251-259.

Reviewed(94i:15017) de A. Rhodius; 15A51  

On a conjecture of Kemperman concerning the contractivity of a stochastic matrix. Rev. Roumaine. Math. Pures appl, XVII, 5-6, 461-476(1997)  
A class of contraction coefficients of a Markov kernel inspired from the average error of a code. Rev. Roumaine. Math. Pures appl, XLIII, 9-10, 897-908(1998)  
A remark concerning the behavior of the ergodicity coefficients with respect to tensor product. Studii ºi cercetãri matematice, Tom 50, nr. 3–4, pg. 277-288 (1998) .  
On the lattice of waiting times, Annales Univ. Sci. Budap, Sect. Computat. , 19 (2000)  
Dobrushin Coefficient of ergodicity and. assymptotic stable L1- contractions (cu. R. Zaharopol) ,J. Theoretical Probability 12(1999), no. 4, 885-902.  
Comparisons of Stochastic Matrices with Applications in Information Theory, Statistics, Economics and Population Sciences (Editura Birkhäuser, 1998) Împreunã cu Joel E. Cohen ºi J.H.B. Kemperman.  
Curs de Teoria mãsurii ºi a probabilitãþilor, Tipografia Universitãþii Bucureºti 1998.