DAY FOUR: THURSDAY, SEPTEMBER 27th
TIME
08:30-09:00
09:00-09:30
09:30-10:00
10:00-10:15
10:15-11:35
11:35-12:35
12:35-14:00
TIME
14:00-15:20
15:20-17:00
17:00-17:30
17:30-18:30
18:30-20:00
Local: FGV
AUD 1
Room 101 Room 102 Room 201 Room 202 Room 204 Room 205 Room 301 Room 302
TUTORIAL
TUTORIAL
MC4LIA-SGT1
MC3 - Part 1
Part1
Coffe Break
OC5
SS10
OA4
ADP1
L&T9
MH11
LIA-SGT2
EST3
DEA3
PM5
ADP2
L&T10
MH12
DEA4
Lunch
AUD 1
SS12
Local: FGV
Room 101 Room 102 Room 201 Room 202 Room 204 Room 205 Room 301 Room 302
TEL&SI2
MH13
PM6
L&T11
LIA-SGT3
EST4
ADM6
MH14
L&T12
LIA-SGT4
ADM7
Coffe Break / Poster Session
PLENARY TALK: BOJAN MOHAR (AUD 2)
Alio
FGV = Fundação Getúlio Vargas
ACRJ = Prédio da Associação Comercial (in front of FGV)
AUD 1 = Auditório (FGV)
AUD 2 = Auditório (ACRJ basement floor)
AUD 3 = Salão de Eventos (ACRJ 14th floor)
Room 303
AD&GP5
Room 303
OC6
OC7
Local: ACRJ
AUD 2
AUD 3
SS11
Local: ACRJ
AUD 2
AUD 3
DAY FIVE: FRIDAY, SEPTEMBER 28th
TIME
08:30-09:00
09:00-09:30
09:30-10:00
10:00-10:15
10:15-11:35
11:35-12:35
12:35-14:00
TIME
14:00-15:40
15:40-16:20
16:20-16:40
17:00-17:30
19:30
AUD 1
TUTORIAL
MC3 - Part 2
SS13
AUD 1
IND4
ADM11
Local: FGV
Room 101 Room 102 Room 202 Room 205 Room 301 Room 302 Room 303
TUTORIAL
ADM8
MC4 Part 2
Coffe Break / Poster Session
DEA5
L&T14
LIA-SGT6 AG&MA1
ADM9
PLENARY TALK: RICHARD A. BRUALDI (AUD 2)
Lunch
AD&GP6
L&T13
LIA-SGT5
SIM4
Local: FGV
Room 101 Room 102 Room 202 Room 205 Room 301 Room 302 Room 303
MH15
ADM10 LIA-SGT7
SE1
EDU2
OA5
MH16
AD&GP7 LIA-SGT8
L&T15
EDU3
LIA-SGT9
Coffe Break
CONFERENCE DINNER (*)
FGV = Fundação Getúlio Vargas
ACRJ = Prédio da Associação Comercial (in front of FGV)
AUD 1 = Auditório (FGV)
AUD 2 = Auditório (ACRJ basement floor)
AUD 3 = Salão de Eventos (ACRJ 14th floor)
Local: ACRJ
AUD 2
AUD 3
Local: ACRJ
AUD 2
AUD 3
*Accession dinner, local: Restaurante Hotel Windsor Guanabara, Av. Presidente Vargas esquina com Av. Rio Branco.
FULL PROGRAM
LIA-SGT Workshop
LIA-SGT1 - Latin Ibero-American Spectral Graph Theory Workshop - Thursday, September 27 - 09:00 - 10:00 Room 205 (FGV)
Opening Session
Nair Abreu (UFRJ), Renata Del-Vecchio (UFF), Vilmar Trevisan (UFRGS)
The least eigenvalue of graphs with convex-qp stability number
102916
Domingos Cardoso (University of Aveiro)
On the algebraic connectivity of classes of trees with given diameter
101732
Nair Abreu (UFRJ),Lilian Markenzon (UFRJ),Oscar Rojo (Universidad Católica del Norte),Luciana Lee
(UFRJ)
LIA-SGT2 - Latin Ibero-American Spectral Graph Theory Workshop - Thursday, September 27 - 10:15 - 12:35 Room 205 (FGV)
Spectra of two families of generalized Bethe trees and trees of diameter five
102590
Oscar Rojo (Universidad Católica del Norte),Luis Medina (Universidad de Antofagasta)
Incidence matrices for oriented graphs and applications
103177
Maria de Freitas (UFRJ),Andréa Soares Bonifácio (Universidade Federal do Estado do Rio de
Janeiro),Maria Robbiano (Universidad Católica del Norte),Bernardo San Martín (Universidad Católica
del Norte)
Indices for special classes of trees
102811
Laura Patuzzi (UFRJ),Maria de Freitas (UFRJ),Renata Del-Vecchio (UFF)
On a conjecture of Hoffman
104680
Milica Andelic (University of Aveiro)
An upper bound on the sum of the largest laplacian eigenvalues of a tree
104462
Eliseu Fritscher (UFRGS),Israel Rocha (UFRGS),Carlos Hoppen (UFRGS)
Consequences of a new Upper Bound on the Sum of the Largest Laplacian Eigenvalues of Trees
103814
Israel Rocha (UFRGS),Eliseu Fritscher (UFRGS),Carlos Hoppen (UFRGS)
LIA-SGT3 - Latin Ibero-American Spectral Graph Theory Workshop - Thursday, September 27 - 14:00 - 15:20 Room 205 (FGV)
What we know and what we need to know about ordering of graphs via algebraic connectivity
102621
Nair Abreu (UFRJ),Claudia Justel (IME),Oscar Rojo (Universidad Católica del Norte),Vilmar Trevisan
(UFRGS)
Some results on nonsingular acyclic matrices with an extremal number of P-vertices
104556
Carlos Fonseca (University of Coimbra)
Is the algebraic connectivity a good measure for telecommunication network robustness?
103173
102920
Marcia Paiva (UFES),Marcelo Segatto (UFES),Gilles Caporossi (GERAD)
Spectra of graphs obtained by a generalization of the join graph operation
Enide Martins (University of Aveiro)
LIA-SGT4 - Latin Ibero-American Spectral Graph Theory Workshop - Thursday, September 27 - 15:40 - 17:00 Room 205 (FGV)
On the modified Schultz index of connected graphs with three cycles
103075
Paula Rama (University of Aveiro), Paula Carvalho (University of Aveiro)
Maximum Laplacian energy of certain threshold graphs
103061
Cybele Vinagre (UFF),Renata Del-Vecchio (UFF),Vilmar Trevisan (UFRGS),Dagoberto Justo (UFRGS)
On the sum of the two largest eigenvalues of the signless Laplacian matrix
103258
Paula Carvalho (University of Aveiro),Léonardo Silva de Lima (CEFET-RJ),Carla Oliveira (Escola
Nacional de Ciências Estatísticas),Paula Rama (University of Aveiro)
Order in some families of trees
104658
Renata Del-vecchio (UFF),Ana Isabel Spinola (UFF),Marina Marins (UFF)
Plenary Talk - Latin Ibero-American Spectral Graph Theory Workshop - Thursday, September 27 – 17:30 18:30 - Room 2 (ACRJ)
Plenary Talk
Bojan Mohar (Simon Fraser University, Canada)
LIA-SGT5 - Latin Ibero-American Spectral Graph Theory Workshop - Friday, September 28 - 09:00 - 10:00 Room 205 (FGV)
Signless Laplacian of weighted complete graphs and clustering
103124
104653
Jorge Alencar (Unicamp),Bruno Amaro (Unicamp),Carlile Lavor (UNICAMP),Léonardo Silva de Lima
(CEFET-RJ)
Characterization of Laplacian eigenvalues of caterpillars
Domingos Cardoso (University of Aveiro),Maria de Freitas (UFRJ),Enide Martins (University of
Aveiro),Maria Robbiano (Universidad Católica del Norte),Bernardo San Martín (Universidad Católica
del Norte)
LIA-SGT6 - Latin Ibero-American Spectral Graph Theory Workshop - Friday, September 28 - 10:15 - 11:35 Room 205 (FGV)
Optimizing the Admissibility Interval of some of the Krein Parameters of Strongly Regular Graphs
102995
Vasco Mano (University of Porto)
Randic and normalized Laplacian spectra of graphs obtained by a generalization of the join graph
operation and applications
102915
Maria Robbiano (Universidad Católica del Norte),Macarena Collao (Universidad Católica del
Norte),Helena Gomes (University of Aveiro)
On The Distribution of Laplacian Eigenvalues of Trees
103043
Vilmar Trevisan (UFRGS),Virgínia Rodrigues (UFRGS),Rodrigo Braga (Unisinos)
Line graph spread
102974
Helena Gomes (University of Aveiro)
Plenary Talk - Latin Ibero-American Spectral Graph Theory Workshop - Friday, September 28 – 11:35 - 12:35 Room 2 (ACRJ)
Plenary Talk
Richard A. Brualdi (University of Wisconsin, USA)
LIA-SGT7 - Latin Ibero-American Spectral Graph Theory Workshop - Friday, September 28 - 14:00 - 15:40 Room 205 (FGV)
Covering Ώn(T) by T-components
104551
Liliana Costa (Universidade de Aveiro),Enide Martins (University of Aveiro),Nair Abreu (UFRJ)
A vertex removal and its effects on the algebraic connectivity
103076
Márcia Albuquerque (CEFET-RJ),Carla Oliveira (Escola Nacional de Ciências Estatísticas),Léonardo
Lima (CEFET/RJ)
Efficient Computation of the Characteristic Polynomial of a Graph of Bounded Tree-Width
106873
Martin Fürer (Pennsylvania State University)
104697
Algebraic tests for a model for emergent order in neuronal network through selective neuronal and
synaptic death
Bruno Mota (UFRJ),Suzana Herculano-Houzel (UFRJ),Kleber Almeida (UFRJ),Rodrigo Siqueira (UFRJ)
LIA-SGT8 - Latin Ibero-American Spectral Graph Theory Workshop - Friday, September 28 - 15:40 - 16:20 Room 205 (FGV)
Using graph spectra in nuclear fuel reload pattern optimization
103218
Roman Cada (University of West Bohemia)
Perturbing Networks
104643
Margarida Mitjana (Universitat Politècnica de Catalunya),Angeles Carmona (Universitat Politècnica
de Catalunya),Andres M. Encinas (Universitat Politècnica de Catalunya)
LIA-SGT9 - Latin Ibero-American Spectral Graph Theory Workshop - Friday, September 28 - 16:20 - 16:35 Room 205 (FGV)
Closing Session