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Akbar Golchin
Department : Department of Mathematics
Degree : Professor
Internal Phone : 6372
External Phone : (541) 2446251-9
Fax : (541) 2447166

Email : agdm@math.usb.ac.ir
Home Page :
Address : Department of Mathematics University of Sistan and Baluchestan Zahedan,IRan

Educations
Department of Mathematics, Teacher training University, Tehran , Iran.
Name of University:
DegreeB.Sc, Date: 1977
Institute of Mathematics, Teacher training University, Tehran , Iran.
Name of University:
DegreeM.Sc, Date: 1979
School of Mathematics, University of Southampton, U.K.
Name of University:
DegreePH.D, Date: 1997


Conferences
Principal weak Flatness of Diagonal Acts over left PSF monoids S
Authors: A.Golchin
ConferenceThe 45st Annual Iranian Mathematics Conference
Date26  August  2014, Place: University of Semnan
On Quasi-Projectivity and (X_S, Y_S)-Projectivity of acts over Monoids
Authors: A.Golchin, M.RZamani
Conference22nd Iranian Algebra Seminar
Date2  February  2012, Place: Sabzevar Tarbiat Moallem University, Sabzevar, Iran
Exact Sequence of Semigroups
Authors: A.Golchin, R.Aminizadeh
Conference22nd Iranian Algebra Seminar
Date2  February  2012, Place: Sabzevar Tarbiat Moallem University, Sabzevar, Iran
Classification of Monoids by C-injectivity of right Ideals
Authors: A. Golchin, S. Saraylo
ConferenceThird Conference and Workshop on Group theory
Date10  March  2011, Place: University of Tehran
Pomonoids S over which all regularly principally weakly injective S-poset are regularly fg-weakly injective
Authors: A. Golchin, M. Enhesari
ConferenceThird Conference and Workshop on Group theory
Date10  March  2011, Place: University of Tehran
On right cyclic perfect monoids
Authors: A. Golchin, M R Zamani
ConferenceThird Conference and Workshop on Group theory
Date10  March  2011, Place: University of Tehran
Classification of pomonoids by properties of their Rees posets
Authors: A. Golchin, M Abedinejad
Conference21th Algebra Seminar of Iran
Date11  November  2010, Place: University of Tabriz
Characterization of monoids by Weak Pullback flatnees of Their Right Rees factor acts
Authors: A. Golchin , Kh. Hasani
Conference41st Annual Iranian Mathematics Conference
Date12  September  2010, Place: Urmia University
Monoids Over which Weakly pullback flat acts are pullback flat
Authors: A. Golchin , Kh. Hasani
Conference41st Annual Iranian Mathematics Conference
Date12  September  2010, Place: Urmia University
Monoids Over which Acts Satisfymy comdition (P) are Stronsly flat
Authors: A. Golchin , J. Golzarpur
Conference41st Annual Iranian Mathematics Conference
Date12  September  2010, Place: Urmia University
Flatness Properties of S-Poset A(I).
Authors: A. Golchin , N. Mohammadrashidi
ConferenceProceedings of Group Therory Conference
Date10  March  2010, Place: Mashhad
Classification of Pomonoids S by properties of Rees factor S-Posets
Authors: A. Golchin , M.Abedinejad
Conference21th Algebra Seminar
Date    2010, Place: University of Tabriz
Strong Flatness Properties of S-Posets
Authors: A. Golchin , Z. Azadi
Conference40st Annual Iranian Mathematics Conference
Date  August  2009, Place: Sharif University
Semigroup for which diagonal biacts are not finitely generated.
Authors: A. Golchin , L. Noori
Conference20Th Seminars on Algebra
Date22  April  2009, Place: Tarbiat Moalleem University
Flatness and annihilator Flatness
Authors: A. Golchin , E. Khodaparast
Conference20Th Seminar on Algebra
Date22  April  2009, Place: Tarbiat Moalleem University
Semigroups That has no finitely generated diagonal Right acts.
Authors: A. Golchin , L. Noori
ConferenceGroup Theory and Lie Algebra Conference
Date4  March  2009, Place: Payam Noor University, Fariman
Acts Over Left (Right) chain Monoids
Authors: A. Golchin , H.R. Kahkha
ConferenceGroup Theory and Lie Algebra Conference
Date4  March  2009, Place: Payam Noor University, Fariman
Flatness Properties of cyclic S-Posets.
Authors: A. Golchin , M. Shafiei
ConferenceGroup Theory and Lie Algebra Conference
Date4  March  2009, Place: Payam Noor University, Fariman
Absolute Weakly equalizer flat Monoids
Authors: A. Golchin , E. Khodaparast
ConferenceGroup Thoary and Lie Algebra Conference
Date4  March  2009, Place: Payam Noor University, Fariman
on É-regular acts
Authors: A. Golchin , H.R. Kahkha
ConferenceProceeding of the 18Th Seminar on Algebra
Date12  March  2008, Place: Semnan University, Semnan
on É-strong flatness of acts
Authors: A. Golchin
ConferenceConference on Semigroups , Acts and Categories With Applications to Graphs
Date27  June  2007, Place: University of Tartu , Estonia
Characterization of Some particular monoids by Condition (É) of Their acts
Authors: A. Golchin , M. Abbasi
Conference18Th Seminar on Algebra
Date4  April  2007, Place: Damghan University of Basic Science
Condition Ṗe.
Authors: A. Golchin
Conference Proceeding of the 17Th Seminar on Algebra
Date8  March  2006, Place: University of Sistan and Baluchestan
On P-Regularity of Rees Factor Acts.
Authors: A. Golchin
ConferenceProceeding of the 17Th Seminar on Algebra
Date8  March  2006, Place: University of Sistan and Baluchestan
R - right and L - left Cancellative semigroups
Authors: A. Golchin
ConferenceProceeding of the 17Th Seminar on Algebra
Date8  March  2006, Place: University of Sistan and Baluchestan
Characterization of monoids by Condition (EPe)
Authors: A. Golchin
ConferenceInternational Congress of Mathematicians
Date    2006, Place: Madrid
On Kernel Flatness
Authors: A. Golchin
ConferenceGroups St Andrews 2005, University of St Andrews
Date    2005, Place: St Andrews, Scotland.
Homoflatness of acts
Authors: A. Golchin & M. Nabavi
Conference16th Seminar on Algebra, Institute for Advanced Studies in Basic Science.
Date17  November  2004, Place: Zanjan
Coproduct and Kernel flatness
Authors: A. Golchin
ConferenceFourth European Congress of mathematics
Date27  June  2004, Place: Stockholm , Sweden
Flatness on Ideal Extension
Authors: A. Golchin
ConferenceAbstracts of short communications and poster Sessions of Mathematics, Beijing 2002.
Date20  August  2002, Place: China, Page 15-16
Monoids over which all strongly flat acts are projective.
Authors: A. Golchin & A. Safavi
Conference14th Seminar on Algebra.
Date16  July  2002, Place: Azzahra University, Tehran
Fuzzy Congruence over semigroup.
Authors: A. Golchin , H. Mohammadzadeh
Conference14th Seminar on Algebra
Date16  July  2002, Place: Azzahra University, Tehran
Lattice of fuzzy Congruence on regular semigroup.
Authors: A. Golchin , H. Taheri
ConferenceThe Third Seminar on Fuzzy sets and it's Applications
Date19  June  2002, Place: Sistan and Baluchestan University
S - Systems and Condition (PE).
Authors: A. Golchin , J. Sammie
Conference31th Iranian Mathematics Conference
Date27  August  2000, Place: University of Tehran

Journals
E-torsion free Acts over Monoids
Authors: A.Golchin
JournalThai Journal of Mathematics
Date    2014
On properties of product acts over monoids
Authors: A.Golchin
JournalCommunicatin in Algebra
Date    2014
A Correction on the paper " The flatness properties of S-poset A(I) and Rees factor S-posets"
Authors: A.Golchin
JournalSemigroup Forum
Date    2014
Strongly Torsion Free Acts over Monoids
Authors: A.Golchin
JournalAsian-European Journal of mathematics, Vol. 6, No. 3
Date30  September  2013
R-torsion free Acts over Monoids
Authors: A.Golchin
JournalSciences, Islamic Republic of Iran 24(3): 275-285
Date15  July  2013
On Condition (P')
Authors: A.Golchin
JournalSemigroup Forum
Date30  September  2012
On P-Regularity of Acts
Authors: A.Golchin
JournalAdvances in Pure Mathematics, 2, 63-138, 2012
Date  March  2012
On Strongly (P)-Cyclic Acts
Authors: A. Golchin
JournalCzechoslovak Mathematical Journal, 59 (134) (2009), 595-611
Date    2009
ON Condition (PWPE)
Authors: A. Golchin
JournalSoutheast Asian Bulletin of Mathematics (2009) 33:245-256
Date    2009
ON Homological Classification of Monoids by Condition (P_E) of right Acts
Authors: A. Golchin
JournalItalian Journal of mathematics - No 25 -2009 (175-186)
Date    2009
Subpullbaks and flatness properties of S-posets (ISI)
Authors: A. Golchin
JournalCommunications in Algebra 37 : (1995-2007) ,2009
Date    2009
(Homo) Flatness of posets on poideal extensions (ISI)
Authors: A. Golchin
JournalSemigroup Forum (2009) 79 : 65-78
Date    2009
ON U-(P) Acts
Authors: A. Golchin
JournalGlobal Journal of Pure and Applied Mathematics, Vol.4 No.1 (2008)
Date    2008
On Regvlarity of Acts
Authors: A. Golchin
JournalSciences, Islamic Republic of Iran 19(4): 339-345 (2008)
Date    2008
On the U-WPF Acts over Monoids
Authors: A. Golchin
JournalSciences, Islamic Republic of Iran 18(4): 323-328 (2007)
Date    2007
On R-Right (L-Left) Cancellative And Weakly R(L) - Cancellative Semigroups
Authors: A. Golchin
JournalSciences, Islamic Republic of Iran 18(1): 35-40 (2007)
Date    2007
ON Condition (EP).
Authors: A. Golchin
JournalInternational Mathematical Forum , 2,2007 ,no 19, 911-918
Date    2007
On Homological classification of Monodis By Condition (E') of Right Acts
Authors: A. Golchin
JournalYokohama Mathematical Journal Vol. 54 Number 1 December 2007 79-88
Date    2007
ON Condition (E'P).
Authors: A. Golchin
JournalSciences, Islamic Republic of Iran 17(4): 343-349 (2006)
Date    2006
Flatness and Coproducts
Authors: A. Golchin
JournalSemigroup Forum, Vol. 72 (2006) 433-440 (ISI)
Date    2006
Homoflatness on Ideal Extensions
Authors: A. Golchin
JournalSemigroup Forum, 70(2005), Springer-Verlag, New York Inc, 296-301 (ISI)
Date    2005
On Homo flatness.
Authors: A. Golchin
JournalWseas Transaction on Mathematics , Issue 4, Volume 3, October 2004
Date  October  2004
On Flatness of Acts
Authors: A. Golchin
JournalSemigroup Forum, 67 (2003), Springer-Verlag, New York Inc, 262-270 (ISI)
Date    2003
Flat Acts that satisfy Condition (P)
Authors: A. Golchin & J. Renshaw
JournalSemigroup Forum, 59 (1999), Springer-Verlag, New York Inc, 295-309 (ISI)
Date    1999
A Flatness Property of Acts over monoids.
Authors: A. Golchin & J. Renshaw
JournalSemigroup and Applications: Proceedings of Conference, world scientific, 72-77 (1998)
Date    1998
Periodic Monoids over which all flat cyclic Right Acts satisfy Condition (P)
Authors: A. Golchin & J. Renshaw
JournalSemigroup Forum, 54 (1997), Springer-Verlag, New York Inc, 261-263 (ISI)
Date    1997



Research Interests
(Algebraic) semigroup theory, specically homological properties of (order) semigroups and their (ordered) acts

Research Projects
Classification of monoids over which all weakly flat acts satisfy condition (P)
Researcher : A.Golchin , H.Shirin shandiz
Start Date2003 , End Date :
Place
Classification of monoids by Properties of Rees Factor acts
Researcher : A.Golchin , M.Yosefhi
Start Date2004 , End Date :
Place
Monoids over which all acts that are strongly flat or satfsfy condition (P) are projective
Researcher : A.Golchin , A.Safavi Heir
Start Date2003 , End Date :
Place
Flatness and flat cover of acts over a monoid
Researcher : A.Golchin , M.Qourchinejadi
Start Date2007 , End Date :
Place
Equalizer flat and pullback flat acts
Researcher : A.Golchin , H.Saei
Start Date2006 , End Date :
Place
Category of S-Posets
Researcher : A.Golchin , M.Salehi
Start Date2006 , End Date :
Place
Flatness Properties of S-Posets
Researcher : A.Golchin , S.Mohtasham
Start Date2006 , End Date :
Place
Coprducts and Properties of Acts over Monoids
Researcher : A.Golchin
Start Date2003 , End Date :
Place
On Covers of cyclic acts over monoids
Researcher : A.Golchin , M.Abbasi
Start Date2007 , End Date :
Place
Classification of monoids by Properties of Acts
Researcher : A.Golchin , J.Samiey Darooneh
Start Date2001 , End Date :
Place
Classification of monoid over which all (weakly) flat cyclic Acts are strongly flat
Researcher : A.Golchin , H.Taheri
Start Date2002 , End Date :
Place
Pullbacks and Flatness Properties of Acts
Researcher : A.Golchin , S.M.N.Kohsorkhi
Start Date2005 , End Date :
Place
On Diagonal Acts of Monoids
Researcher : A.Golchin , L.Noori
Start Date2009 , End Date :
Place
On classification of Monoids by properties of cofree Acts
Researcher : A.Golchin , M.Raisi
Start Date2007 , End Date :
Place
Flatness Properties of monocyclic acts
Researcher : A.Golchin , J.Hatami
Start Date2005 , End Date :
Place
Kernel flatness of acts (Over monoieds)
Researcher : A.Golchin , L.Paghgheh
Start Date2005 , End Date :
Place
Po-flatness properties of S-posets
Researcher : A.Golchin , S.Rojhani
Start Date2006 , End Date :
Place
Monoids for which all weakly flat cyclic right acts satisfy condition (P)
Researcher : A.Golchin , P.Rezaei
Start Date2003 , End Date :
Place
Classification of monoids by some conditions of their acts
Researcher : A.Golchin , H.M.Mohammadzadeh
Start Date2007 , End Date :
Place
Indecomposable , projective and flat S-Posets
Researcher : A.Golchin , Sh.Motmaen
Start Date2007 , End Date :
Place
Flatness Properties of Poset.
Researcher : A.Golchin , P.Rezaei
Start Date2009 , End Date :
Place
On flatness properties of cyclic S_Posets
Researcher : A.Golchin , M.Shafiei
Start Date2010 , End Date :
Place
Monoids and flatness of Acts.
Researcher : A.Golchin , A.Adib
Start Date2005 , End Date :
Place
Some new characterization of right cancellative monoids by properties of acts
Researcher : A.Golchin , S.Maleki
Start Date2010 , End Date :
Place
Flatness properties of Poset A(I) and Rees factor posets
Researcher : A.Golchin , N.Mohammad rashidi
Start Date2010 , End Date :
Place
(Principally) Weakly (Po-) flatness properties of S-Posets
Researcher : A.Golchin , Z.Azadi
Start Date2010 , End Date :
Place
Conditions (WP) and (PWP) of Acts over Monoids
Researcher : A.Golchin , H.R.Kahkha
Start Date2009 , End Date :
Place
Equalizer and flatness properties of Acts
Researcher : A.Golchin , E.Khodaparast
Start Date2009 , End Date :
Place
On monoids for which Condition (P) of acts are strongly flat
Researcher : A.Golchin, J. Golzarpoor
Start Date2010 , End Date :
Place
Weak pullback flatness of right Rees factor S-acts
Researcher : A. Golchin, KH. Hasani
Start Date2011 , End Date :
Place
Classification of Pomonoids by their Rees factor S-posets
Researcher : A. Golchin, M. Abedinejad
Start Date2011 , End Date :
Place
On homological classification of pomonoids by regular weak injectivity properties of S-posets
Researcher : A. Golchin, M. Enhesari
Start Date2011 , End Date :
Place
Classification of Monoids by properties of C(CC)- injectivity of Acts
Researcher : A. Golchin, S. Saraylo
Start Date2011 , End Date :
Place
On a generalization of Condition (E) and strong flatness
Researcher : A. Golchin, M.R. Rahmati
Start Date2011 , End Date :
Place
Projective, Strongly flat and Condition (P) covers of (Cyclic) Acts over monoids
Researcher : A.Golchin, F. Rezaei
Start Date , End Date : 2012
Place
Tensor Products and Preservation of Limits for Acts over monoids
Researcher : A.Golchin, L.Karvand
Start Date , End Date : 2012
Place
Poperfect Pomonoids
Researcher : A.Golchin, M.R.Zamani
Start Date , End Date : 2012
Place
Strongly Flat and Condition (P) of S-posets and their Covers
Researcher : A. Golchin, T.Paskamary
Start Date , End Date : 2012
Place
Lazard's Theorem for S-posets
Researcher : A.Golchin, M.S.Taghinejad
Start Date , End Date : 2012
Place
Regular injectivity of S-posets over Clifford Pomonoids
Researcher : A.golchin, F.Houshmand
Start Date , End Date : 2011
Place
Absolutely Annihilator-Flat Monoids
Researcher : A.Golchin, R.Aminizadeh
Start Date , End Date : 2012
Place
On Rees Weakly Projective Right Acts
Researcher : A.Golchin, J.Jahantigh
Start Date , End Date : 2012
Place
Characterization of Monoids by Regular Right Acts
Researcher : A.Golchin, H.Yasami
Start Date , End Date : 2012
Place
On Relative Quasi-projective Acts over Monoids
Researcher : A.Golchin, N.Naseri
Start Date , End Date : 2013
Place
On Monoids over which all strongly flat right S-acts are regular and all cyclic flat right S-acts satisfy Condition (E)
Researcher : A. Golchin, A. Akbari
Start Date , End Date : 2013
Place
On Torsionless and Dense Acts
Researcher : A. Golchin, H. Hashemi
Start Date , End Date : 2013
Place
On weakly projective amalgams
Researcher : A. Golchin , Z. Khaki
Start Date2013 , End Date :
PlaceUniversity of Sistan and Baluchestan
Prime and Semiprime acts over monoids with zero
Researcher : A.Golchin, Z. Moudi
Start Date2013 , End Date :
PlaceUniversity of Sistan and Baluchestan
On 2-absorbing commutative semigroups and their applications to rings
Researcher : A. Golchin, M. Modravani
Start Date , End Date : 2013
PlaceUniversity of Sistan and Baluchestan
Strongly 2-absorbing subacts of acts over monoids and Strongly torsion free, E-torsion free and R-torsion free acts over monoids
Researcher : A. Golchin, A.Z. Moghanjoghi
Start Date , End Date : 2013
PlaceUniversity of Sistan and Baluchestan
On Flatness Properties of Product Acts and Posets
Researcher : A.Golchin, L.Nouri
Start Date2009 , End Date : 2014
PlaceUniversity of Sistan and Baluchestan, Iran
Principal weak flatness and regularity of diagonal acts
Researcher : A.Golchin , A. Zolala
Start Date , End Date : 2014
PlaceUniversity of Sistan and Baluchestan